JPS63169362A - Nonmagnetic tool steel - Google Patents
Nonmagnetic tool steelInfo
- Publication number
- JPS63169362A JPS63169362A JP61315426A JP31542686A JPS63169362A JP S63169362 A JPS63169362 A JP S63169362A JP 61315426 A JP61315426 A JP 61315426A JP 31542686 A JP31542686 A JP 31542686A JP S63169362 A JPS63169362 A JP S63169362A
- Authority
- JP
- Japan
- Prior art keywords
- less
- steel
- tool steel
- corrosion resistance
- yield strength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001315 Tool steel Inorganic materials 0.000 title claims abstract description 15
- 230000005291 magnetic effect Effects 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 15
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 11
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 10
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 10
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 33
- 239000010959 steel Substances 0.000 abstract description 33
- 238000005260 corrosion Methods 0.000 abstract description 20
- 230000007797 corrosion Effects 0.000 abstract description 20
- 229910052748 manganese Inorganic materials 0.000 abstract description 6
- 230000035699 permeability Effects 0.000 abstract description 6
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 9
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910052790 beryllium Inorganic materials 0.000 description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Hard Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は非磁性工具鋼に関し、特にプラスチック磁石の
射出成形用金型材などに使用することができる非磁性工
具鋼に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a non-magnetic tool steel, and more particularly to a non-magnetic tool steel that can be used as a mold material for injection molding of plastic magnets.
［従来の技術］
プラスチック磁石の射出成形用金型材などとして使用さ
れる材料は、非磁性が要求される。そのため、プラスナ
ック磁石の射出成形用金型材などとしては、一般に、ベ
リリウム鋼１．ＬＩ ｒｓ−ｓｕ８３０４、ＪＩＳ−Ａ
ＣｌＡのアルミ合金が使用されている。[Prior Art] Materials used as mold materials for injection molding of plastic magnets are required to be non-magnetic. Therefore, beryllium steel 1. LI rs-su8304, JIS-A
An aluminum alloy of ClA is used.
しかしながら、ベリリウム銅は耐力が７０ｋＱ、／ｍｍ
２と高いものの、延性が伸び４％程度と低くく、また被
削性も低く金型加工が容易でなかった。さらに耐食性も
低かった。さらに、ベリリウム鋼は価格も１ＫＱあたり
ｉ ｏｏｏｏ円以上と極めて高かった。However, beryllium copper has a yield strength of 70 kQ/mm.
Although it had a high elongation of 2, the elongation was low at about 4%, and the machinability was also low, making mold processing difficult. Furthermore, the corrosion resistance was also low. Furthermore, the price of beryllium steel was extremely high, at more than Iooo yen per 1KQ.
また、５ＵＳ３０４では耐食性がよいものの、耐力が２
５ｋｇ／ｍｍ２と低く、被剛性もかなり低かった。In addition, although 5US304 has good corrosion resistance, its yield strength is 2.
It was as low as 5 kg/mm2, and the stiffness was also quite low.
また、ＪＩＳ−ＡＣＩＡのアルミ合金は被削性がよいも
のの、耐力が１０ｋｇ／ｍｍ２程度と低かった。さらに
、このアルミ合金は耐食性も低かった。Further, although the JIS-ACIA aluminum alloy had good machinability, its yield strength was as low as about 10 kg/mm2. Furthermore, this aluminum alloy also had low corrosion resistance.
つまり、従来のベリリウム銅、５ＵＳ３０４、ＪＩＳ−
ＡＣｌＡのアルミ合金は、耐力、延性、耐食性、被削性
などを総合的にみると、かならずしも充分なものではな
かった。In other words, conventional beryllium copper, 5US304, JIS-
AClA aluminum alloy has not always been sufficient in terms of yield strength, ductility, corrosion resistance, machinability, etc.
［発明が解決しようとするする問題点］本発明はかかる
欠点を克服するためになしたものであり、その目的は、
耐力が７０ｋｇ／ｍｍ２以上で、延性もよく、かつ耐食
性も５ＵＳ３０４と同等もしくは若干よく、価格も適当
な、非磁性工具鋼を提供するにある。[Problems to be solved by the invention] The present invention has been made to overcome these drawbacks, and its purpose is to:
The object of the present invention is to provide a non-magnetic tool steel having a yield strength of 70 kg/mm2 or more, good ductility, corrosion resistance equivalent to or slightly better than 5US304, and a reasonable price.
［問題点を解決するための手段］
本発明は、第１に、炭窒化物を形成するＣｒ、Ｖ、Ｎｂ
などの合金元素をオーステナイトに完全に固溶させ、そ
の状態で７００〜１１００℃において熱間加工し、熱間
加工中、特に７００〜９００℃で炭窒化物を析出させ安
定した非磁性と、靭性を保らつつ、耐力を増加させるこ
と、第２に、Ｃ，ＮｂＸＶの調整により、高温強度、耐
食性、靭性の適性化を図り非磁性工具鋼としての必要特
性を（ｑるものである。[Means for Solving the Problems] The present invention firstly addresses the problems of Cr, V, and Nb forming carbonitrides.
Alloying elements such as are completely dissolved in austenite and then hot worked at 700 to 1100°C, and during hot working, carbonitrides are precipitated, especially at 700 to 900°C, resulting in stable nonmagnetism and toughness. Second, by adjusting C and NbXV, high-temperature strength, corrosion resistance, and toughness are optimized to achieve the necessary properties as a non-magnetic tool steel.
第１発明鋼は、重量％で、Ｃ：０．１５％以下、Ｓｉ：
１．０％以下、Ｍｎ：５．０％以下、Ｓ二０．０３０％
以下、Ｎｉ ７．Ｏ〜１５．０％、Ｃｒ ： １６．０
〜２２．０％、Ｎｂ：０．５％以下、Ｎ：０．１〜０．
４％を含有し、残部ｌｅｅならびに不可避の不純物から
なることを特徴とする非磁性工具鋼である。The first invention steel has C: 0.15% or less, Si:
1.0% or less, Mn: 5.0% or less, S2 0.030%
Below, Ni7. O~15.0%, Cr: 16.0
~22.0%, Nb: 0.5% or less, N: 0.1-0.
It is a non-magnetic tool steel characterized by containing 4% of ferromagnetic acid and the remainder consisting of lee and unavoidable impurities.
第２発明鋼は、Ｓを添加して第１発明鋼の被削性を改善
したものであり、重ｆ１１％で、Ｃ：０．１５％以下、
Ｓｉ：１．０％以下、Ｍｎ：５．０％以下、Ｓ：０．０
３０〜０．３％、Ｎｉ７．０〜１５．０％、Ｃｒ ：
１６．Ｏ〜２２．０％、Ｎｂ：０．５％以下、Ｎ：０．
１〜０．４％を含有し、残部Ｆｅならびに不可避の不純
物からなることを特徴とする非磁性工具鋼である。The second invention steel improves the machinability of the first invention steel by adding S, and has a weight f of 11%, C: 0.15% or less,
Si: 1.0% or less, Mn: 5.0% or less, S: 0.0
30~0.3%, Ni7.0~15.0%, Cr:
16. O~22.0%, Nb: 0.5% or less, N: 0.
It is a non-magnetic tool steel characterized by containing 1 to 0.4% of Fe, with the remainder consisting of Fe and unavoidable impurities.
第３発明鋼は、ＭＯｌＣｕ、■のうち少なくとも１種を
添加して耐摩耗性の向上を図るものであり、重量％で、
Ｃ：０．１５％以下、Ｓｉ：１゜０％以下、Ｍｎ：５．
０％以下、Ｓ：０．０３０％以下、Ｎｉ ７．Ｏ〜１５
．０％、Ｃｒ ： １６゜０〜２２．０％、Ｍｏ：４．
０％以下、Ｃｕ：３゜０％以下、Ｖ：０．５％以下の範
囲内で、ＭＯｌＣＵ、Ｖのうち１種ないし２ｆ’！＋合
計で７．５％以下、Ｎｂ：０．５０％以下、Ｎ：０．１
〜０゜４％を含有し、残部Ｆｅならびに不可避の不純物
からなることを特徴とする非磁性工具鋼である。The third invention steel is intended to improve wear resistance by adding at least one of MOlCu and
C: 0.15% or less, Si: 1°0% or less, Mn: 5.
0% or less, S: 0.030% or less, Ni 7. O~15
．． 0%, Cr: 16°0-22.0%, Mo: 4.
0% or less, Cu: 3° or less, V: 0.5% or less, and one or more of MOlCU and V or 2f'! + Total 7.5% or less, Nb: 0.50% or less, N: 0.1
It is a non-magnetic tool steel characterized by containing ~0.4% Fe, with the remainder consisting of Fe and unavoidable impurities.
第４発明鋼は、希土類元素、ＭｇおよびＢの少なくとも
１種を添加して、耐力、靭性の一層の向上を図るもので
あり、重量％で、Ｃ：０゜１５％以下、Ｓｉ：１．０％
以下、Ｍｎ：５．０％以下、Ｓ：０．０３０％以下、Ｎ
ｉ７．Ｏ〜１５．０％、Ｃｒ ： １６．Ｏ〜２２．０
％、Ｍｏ：４．０％Ｄ下、Ｃｕ ： ３．０％以下、Ｖ
：０．５％以下の範囲内で、ＭＯｌＣｕ、ｖのうち１種
ないし２種：合計で７．５％以下と、Ｎｂ：０．５％以
下、Ｎ：０．１〜０．４％を含有し、さらに希土類元素
：０．２０％以下、Ｃａ：０．１０％以下、ＭＱ：０．
１０％以下、Ｂ：０．０１％以下の範囲内で、希土類元
素、ＭＱ、Ｂのうち１種ないし２種以上：０．３１％以
下を含有し、残部Ｆｅならびに不可避の不純物からなる
ことを特徴とする非磁性工具鋼である。The fourth invention steel is intended to further improve yield strength and toughness by adding at least one of rare earth elements, Mg and B, and has C: 0°15% or less, Si: 1. 0%
Below, Mn: 5.0% or less, S: 0.030% or less, N
i7. O~15.0%, Cr: 16. O~22.0
%, Mo: 4.0% D lower, Cu: 3.0% or less, V
: Within the range of 0.5% or less, one or two of MOlCu, v: 7.5% or less in total, Nb: 0.5% or less, N: 0.1 to 0.4%. Contains rare earth elements: 0.20% or less, Ca: 0.10% or less, MQ: 0.
10% or less, B: 0.01% or less, one or more of rare earth elements, MQ, and B: 0.31% or less, with the balance consisting of Fe and unavoidable impurities. It is a non-magnetic tool steel with special characteristics.
第５発明鋼は、重量％で、Ｃ：０．１５％以下、Ｓｉ：
１．０％以下、Ｍｎ：５．０％以下、Ｓ二０．０３〜０
．３％、Ｎｉ７．Ｏ〜１５．０％、Ｃｒ：１６．Ｏ〜２
２．０％、ＭＯ：４．０％以下、希土類元素：０，２０
％、ＣａおよびＭＯの少なくとも１種＋０．１０％以下
、Ｃｕ：３．０％以下、Ｖ：０．５％以下、Ｎｂ：０．
５％以下、Ｎ：０．１〜０．４％、Ｂ：０．０１％以下
ヲ含有し、残部Ｆｅならびに不可避の不純物からなるこ
とを特徴とするものである。The fifth invention steel has C: 0.15% or less, Si:
1.0% or less, Mn: 5.0% or less, S2 0.03-0
．． 3%, Ni7. O~15.0%, Cr:16. O~2
2.0%, MO: 4.0% or less, rare earth elements: 0.20
%, at least one of Ca and MO+0.10% or less, Cu: 3.0% or less, V: 0.5% or less, Nb: 0.
It is characterized by containing 5% or less of N, 0.1 to 0.4% of N, and 0.01% or less of B, with the remainder consisting of Fe and unavoidable impurities.
以下、本発明鋼の成分限定理由について説明する。The reasons for limiting the composition of the steel of the present invention will be explained below.
ＣはＮｂ、Ｖなどの炭化物形成元素と結合して耐力を向
上させる重要な元素である。しかし、０゜１５％をこえ
て含有させると耐食性を劣化させるので、その上限を０
，１５％とした。C is an important element that combines with carbide-forming elements such as Nb and V to improve yield strength. However, if the content exceeds 0.15%, the corrosion resistance will deteriorate, so the upper limit should be set at 0.
, 15%.
Ｓｉは脱酸剤として添加される元素である。しかし、１
．０％をこえて含有すると、δフエライト生成傾向を増
加し望ましくなく、その上限を１゜０％とした。Si is an element added as a deoxidizing agent. However, 1
．． If the content exceeds 0%, it increases the tendency to form δ ferrite, which is undesirable, and the upper limit is set at 1°0%.
ＭｎはＮの溶解度を高め、溶接性、熱間加工性を改善し
、ブローホールを抑制する元素である。Mn is an element that increases the solubility of N, improves weldability and hot workability, and suppresses blowholes.
しかしその反面、含有量が増加すると耐食性、耐酸化性
を劣化させるので、その上限を５．０％とした。However, on the other hand, as the content increases, corrosion resistance and oxidation resistance deteriorate, so the upper limit was set at 5.0%.
Ｎ１はオーステナイトを形成するとともに耐食性を向上
させる元素であり、そのため７．０％以上含有させる必
要がある。その反面、含有量が１５％をこえると効果の
向上が少なくなり、価格も高騰するので上限を１５．０
％とした。N1 is an element that forms austenite and improves corrosion resistance, and therefore needs to be contained in an amount of 7.0% or more. On the other hand, if the content exceeds 15%, the effect will be less improved and the price will rise, so the upper limit should be set at 15.0%.
%.
Ｏｒは耐食性、耐酸化性を改善させるために必要な元素
であり、１６％以上の含有が必要である。Or is an element necessary to improve corrosion resistance and oxidation resistance, and must be contained in an amount of 16% or more.
その反面含有量が増加するとδフエライト生成傾向を増
加し望ましくなく、そのため上限を２２％とした。On the other hand, if the content increases, the tendency to form δ ferrite increases, which is undesirable, so the upper limit was set at 22%.
ＭＯはマトリックスとしてのオーステナイトの強化、耐
食性の向上のために必要な元素である。MO is an element necessary for strengthening austenite as a matrix and improving corrosion resistance.
その反面、含有ｍが増加するとδフエライト生成傾向を
増加し望ましくなく、そのため第４発明鋼では上限を４
．０％とした。On the other hand, as m content increases, the tendency to form δ ferrite increases, which is undesirable. Therefore, in the fourth invention steel, the upper limit is set to 4
．． It was set to 0%.
■は蒸室化物として析出し、耐力を向上させる元素であ
る。しかし０．５％以上含有しても効果の向上は少ない
。そのため上限を０．５％とした。(2) is an element that precipitates as a vapor compound and improves yield strength. However, even if the content is 0.5% or more, the effect will not be improved much. Therefore, the upper limit was set at 0.5%.
Ｎｂは炭窒化物として析出し、耐力を向上させる元素で
ある。しかし０．５％以上含有しても効果の向上は少な
いので上限を０．５％とした。Nb is an element that precipitates as carbonitride and improves yield strength. However, even if the content is 0.5% or more, the effect will not be improved much, so the upper limit was set at 0.5%.
Ｎは炭窒化物として析出するとともに素地を強化し耐力
を顕著に向上させる元素であり、０．１０％以上含有さ
せる必要がある。その反面、０゜４％をこえて含有させ
ると、その効果の向上が小さく熱間加工性も低下さ迂る
ので上限を０．４０％とした。N is an element that precipitates as carbonitrides, strengthens the base material, and significantly improves the yield strength, and must be contained in an amount of 0.10% or more. On the other hand, if the content exceeds 0.4%, the improvement in the effect will be small and the hot workability will also deteriorate, so the upper limit was set at 0.40%.
Ｃｕは耐食性の向上に効果がある元素である。Cu is an element that is effective in improving corrosion resistance.
しかし３．０％をこえると、その効果の向上は少ない。However, if it exceeds 3.0%, the effect will not improve much.
そのため上限を３．０％とした。Therefore, the upper limit was set at 3.0%.
希土類元素は延性および熱間加工性を向上させる元素で
ある。しかし０．２０％をこえて含有させても効果の向
上が少ないので上限を０．２０％とした。Rare earth elements are elements that improve ductility and hot workability. However, even if the content exceeds 0.20%, there is little improvement in the effect, so the upper limit was set at 0.20%.
ＣａおよびＭＯは延性および熱間加工性を向上させる元
素である。しかし、ｏ、１０％をこえて含有させても効
果の向上が少ないので上限を０゜１０％とした。Ca and MO are elements that improve ductility and hot workability. However, even if the content exceeds 10%, there is little improvement in the effect, so the upper limit was set at 0°10%.
Ｂは延性および熱間加工性を向上させる元素である。し
かし０．０１％をこえて含有させても効果の向上が少な
いので、上限を０．０１％とした。B is an element that improves ductility and hot workability. However, even if the content exceeds 0.01%, there is little improvement in the effect, so the upper limit was set at 0.01%.
Ｓは快削性を向上させる元素であり、必要な快削性を獲
得するには０．０３％以上含有させる必要がある。しか
し０．３％をこえて含有させると′Ｍ耐食性熱間加工性
を劣化させるので、上限を０゜３％までとした。S is an element that improves free machinability, and must be contained in an amount of 0.03% or more to obtain the necessary free machinability. However, if the content exceeds 0.3%, the 'M' corrosion resistance and hot workability deteriorate, so the upper limit was set to 0.3%.
［実施例ｊ
つぎに本発明鋼の特徴を従来鋼、比較鋼と比較して実施
例でもってあきらかにする。[Example j] Next, the characteristics of the steel of the present invention will be clarified by comparing it with conventional steel and comparative steel.
第１表はこれらの供試鋼の化学成分をしめすものである
。Table 1 shows the chemical composition of these test steels.
第１表において、Ａ〜Ｎ鋼は本発明鋼であり、そのうち
、Ａ〜Ｄは第１発明鋼、Ｅ、Ｆは第２発明鋼であり、Ｇ
、Ｈは第３発明鋼、Ｊ、には第４発明鋼、Ｌ、Ｍ、Ｎは
第５発明鋼であり、Ｐ−Ｒは従来材であり、そのうちＰ
はベリリウム銅、Ｑは５ＵＳ３０４、ＲはＡＣｌＡであ
る。In Table 1, A to N steels are the invention steels, of which A to D are the first invention steels, E and F are the second invention steels, and G
, H is the third invention steel, J is the fourth invention steel, L, M, N are the fifth invention steel, P-R is the conventional material, among which P
is beryllium copper, Q is 5US304, and R is AClA.
第２表は、第１表の固溶化熱処理（１０５０℃Ｘ３０分
）→水冷を施した供試鋼Ａ−Ｒの耐力、延性、耐食性、
被削性を調べたものである。Table 2 shows the yield strength, ductility, corrosion resistance, and
The machinability was investigated.
耐力、伸びのα１定にあたっては、ＪＩＳ−Ｚ−２２０
１によりＪＩＳＪ号試験片を作製して測定した。For α1 determination of yield strength and elongation, JIS-Z-220
1, a JISJ No. test piece was prepared and measured.
耐食性については、Ｊ ｌ５−Ｇ−０５７３のステンレ
ス鋼の耐食試験方法である沸騰状態の６５％硝酸腐蝕試
験方法で行ない、試験片の肉厚減少間で測定した。ここ
で、評価基準はＡ、Ｂ、Ｃの３ランクとし、Δ≦０．１
２７ｍｍ／ｙｅａｒ、Ｂ≦０．５０８ｍｍ／ｙｅａｒ、
Ｃ＞０．０２ｍｍ、’ｙｅａｒとした。Corrosion resistance was measured using a 65% nitric acid corrosion test method in a boiling state, which is a corrosion resistance test method for stainless steel according to J15-G-0573, and the thickness reduction of the test piece was measured. Here, the evaluation standard is 3 ranks of A, B, and C, and Δ≦0.1
27mm/year, B≦0.508mm/year,
C>0.02mm, 'year'.
被剛性については、定荷重試験によるψ位時間について
のドリルによる孔開は距離により測定したしのである。Regarding the rigidity, the distance of drilling a hole with a drill for ψ position time in a constant load test was measured by distance.
ここで評価基準は△、Ｂ、Ｃの３ランクとし、Δ：大、
Ｂ：中、Ｃ：小、Ｄ：極小とした。Here, the evaluation criteria are 3 ranks: △, B, and C, where Δ: large;
B: medium, C: small, and D: extremely small.
耐力については、第２表によりあきらかなように、本発
明鋼であるＡ−Ｎは耐力がいずれも７０ｋｇ／ｍｍ２以
上であり、一方、従来材Ｐは耐力が７０ｋｑ／ｍｍ２で
あるものの、従来材Ｑは２５ｋｇ／ｍｍ２であり、従来
材Ｒは１０ｋＱ／ｍｍ２である。したがって、本発明鋼
Ａ〜Ｎは、いずれも従来材であるＱＳＲに比較して耐力
が向上している。Regarding the yield strength, as is clear from Table 2, the present invention steels A-N all have a yield strength of 70 kg/mm2 or more, while the conventional material P has a yield strength of 70 kq/mm2; Q is 25 kg/mm2, and the conventional material R is 10 kQ/mm2. Therefore, all of the steels A to N of the present invention have improved yield strength compared to QSR, which is a conventional material.
延性については、第２表によりあきらかなように、本発
明鋼であるＡ〜Ｎはいずれら伸びが３０％以上であり、
一方、従来材Ｑは伸びが６５％であったものの、従来材
Ｐは伸びが４％と小さく、従来材Ｒは伸びが５％と小で
あった。Regarding ductility, as is clear from Table 2, the steels A to N of the present invention all have an elongation of 30% or more,
On the other hand, although conventional material Q had an elongation of 65%, conventional material P had a small elongation of 4%, and conventional material R had a small elongation of 5%.
耐良性については、第２表によりあきらかなように、本
発明鋼であるＡ〜Ｎはいずれもパランクである。一方、
従来材ＱはＡであるものの、従来材Ｐは８であり、従来
材ＲはＣであった。As for the good resistance, as is clear from Table 2, all of the steels A to N of the present invention are in the palanque range. on the other hand,
Although the conventional material Q was A, the conventional material P was 8, and the conventional material R was C.
なお、被削性については、第２表によりあきらかむよう
に、第１発明鋼であるＡ〜ＤはいずれもＤランクであり
、第２発明鋼であるＥ、Ｆは０１Ｂランクである。第３
発明鋼であるＧ、ＨはＤランクである。第４発明鋼であ
るＪ、にはＤランクであるｅ第５発明鋼であるり、Ｍ、
ＮはＣ，８ランクである。一方、従来材ＲはＡであるも
のの、従来材ＰはＣであり、従来材ＱはＤであった。し
第２表
＊Ｉ ＪＩＳ−Ｚ−２２０１４号引張試験片使用ＪＩ
ｓ−Ｚ−２４ 金属材料引張試験方法による＊２
ＪＩＳ−Ｇ−０５７３ステンレス鋼の６５％硝酸腐
食試験方法によるＡ：≦０．００５、 Ｂ：≦０．０２
、 Ｃ：＞０．０２＜０．１２７） （０，５
０８） （０，５０８）単位： ｉ ｎｃｈ／ｙ
ｅａｒ （ｍｍ／ｙｅａｒ）＊３ 定荷重試験による単
位時間についての孔開は距離Ａ：大 Ｂ：中 Ｃ：
小 Ｄ＝極小たがって、本発明鋼は従来材Ｐ、Ｑと同
等の被削性をもつ。Regarding machinability, as shown in Table 2, the first invention steels A to D are all ranked D, and the second invention steels E and F are ranked 01B. Third
The invented steels G and H are D rank. J, which is the fourth invention steel, has a D rank, e, which is the fifth invention steel, M,
N is C, rank 8. On the other hand, although the conventional material R was A, the conventional material P was C, and the conventional material Q was D. Table 2 *I JI using JIS-Z-22014 tensile test piece
s-Z-24 Metal material tensile test method *2
JIS-G-0573 stainless steel 65% nitric acid corrosion test method A: ≦0.005, B: ≦0.02
, C:>0.02<0.127) (0,5
08) (0,508) Unit: inch/y
ear (mm/year) *3 The distance of hole opening per unit time by constant load test is A: Large B: Medium C:
Small D = Very small Therefore, the steel of the present invention has machinability equivalent to conventional materials P and Q.
透磁率については、第２表によりあきらかなように、本
発明鋼であるＡ−Ｎはいずれも透磁率が１．０２μ以下
であり、一方、従来材Ｑは透磁率が１．０５μである。Regarding the magnetic permeability, as is clear from Table 2, the steels A-N of the present invention all have a magnetic permeability of 1.02μ or less, while the conventional material Q has a magnetic permeability of 1.05μ.
したがって、本発明ｍＡ〜Ｎは従来材Ｑよりも透磁率が
よい。Therefore, the present invention mA to N have better magnetic permeability than the conventional material Q.
［発明の効果］
以上説明したように本発明にかかる非磁性工具鋼は、従
来より使用されているベリリウム銅、５ＵＳ３０４合金
、アルミ合金に比較して総合的に耐力、延性、耐食性、
透磁率、被剛性の面で総合的に優れているものである。[Effects of the Invention] As explained above, the non-magnetic tool steel of the present invention has comprehensive yield strength, ductility, corrosion resistance, and better strength than conventionally used beryllium copper, 5US304 alloy, and aluminum alloy.
It is comprehensively superior in terms of magnetic permeability and rigidity.
したがって本発明にかかる熱間工具鋼は、特に、プラス
チック磁石射出成形用型材などに使用する際に適する。Therefore, the hot work tool steel according to the present invention is particularly suitable for use in mold materials for injection molding of plastic magnets.
Claims (5)
以下、Ｍｎ：５．０％以下、Ｓ：０．０３０％以下、Ｎ
ｉ：７．０〜１５．０％、Ｃｒ：１６．０〜２２．０％
、Ｎｂ：０．５％以下、Ｎ：０．１〜０．４％を含有し
、残部Ｆｅならびに不可避の不純物からなることを特徴
とする非磁性工具鋼。(1) In weight%, C: 0.15% or less, Si: 1.0%
Below, Mn: 5.0% or less, S: 0.030% or less, N
i: 7.0-15.0%, Cr: 16.0-22.0%
, Nb: 0.5% or less, N: 0.1 to 0.4%, and the balance consists of Fe and unavoidable impurities.
以下、Ｍｎ：５．０％以下、Ｓ：０．０３０〜０．３％
、Ｎｉ：７．０〜１５．０％、Ｃｒ：１６．０〜２２．
０％、Ｎｂ：０．５％以下、Ｎ：０．１〜０．４％を含
有し、残部Ｆｅならびに不可避の不純物からなることを
特徴とする非磁性工具鋼。(2) In weight%, C: 0.15% or less, Si: 1.0%
Below, Mn: 5.0% or less, S: 0.030 to 0.3%
, Ni: 7.0-15.0%, Cr: 16.0-22.
0%, Nb: 0.5% or less, N: 0.1 to 0.4%, and the balance consists of Fe and unavoidable impurities.
以下、Ｍｎ：５．０％以下、Ｓ：０．０３０％以下、Ｎ
ｉ：７．０〜１５．０％、Ｃｒ：１６．０〜２２．０％
、Ｍｏ：４．０％以下、Ｃｕ：３．０％以下、Ｖ：０．
５％以下の範囲内で、Ｍｏ、Ｃｕ、Ｖのうち１種ないし
２種：合計で７．５％以下、Ｎｂ：０．５０％以下、Ｎ
：０．１〜０．４％を含有し、残部Ｆｅならびに不可避
の不純物からなることを特徴とする非磁性工具鋼。(3) In weight%, C: 0.15% or less, Si: 1.0%
Below, Mn: 5.0% or less, S: 0.030% or less, N
i: 7.0-15.0%, Cr: 16.0-22.0%
, Mo: 4.0% or less, Cu: 3.0% or less, V: 0.
Within the range of 5% or less, one or two of Mo, Cu, and V: 7.5% or less in total, Nb: 0.50% or less, N
:0.1 to 0.4%, with the remainder consisting of Fe and unavoidable impurities.
以下、Ｍｎ：５．０％以下、Ｓ：０．０３０％以下、Ｎ
ｉ：７．０〜１５．０％、Ｃｒ：１６．０〜２２．０％
、Ｍｏ：４．０％以下、Ｃｕ：３．０％以下、Ｖ：０．
５％以下の範囲内で、Ｍｏ、Ｃｕ、Ｖのうち１種ないし
２種：合計で７．５％以下と、Ｎｂ：０．５％以下、Ｎ
：０．１〜０．４％を含有し、さらに希土類元素：０．
２０％以下、Ｃａ：０．１０％以下、Ｍｇ：０．１０％
以下、Ｂ：０．０１％以下の範囲内で、希土類元素、Ｍ
ｇ、Ｂのうち１種ないし２種以上：０．３１％以下を含
有し、残部Ｆｅならびに不可避の不純物からなることを
特徴とする非磁性工具鋼。(4) In weight%, C: 0.15% or less, Si: 1.0%
Below, Mn: 5.0% or less, S: 0.030% or less, N
i: 7.0-15.0%, Cr: 16.0-22.0%
, Mo: 4.0% or less, Cu: 3.0% or less, V: 0.
Within the range of 5% or less, one or two of Mo, Cu, and V: 7.5% or less in total, Nb: 0.5% or less, N
: 0.1 to 0.4%, and further contains rare earth elements: 0.1% to 0.4%.
20% or less, Ca: 0.10% or less, Mg: 0.10%
Below, B: within the range of 0.01% or less, rare earth elements, M
A non-magnetic tool steel characterized by containing 0.31% or less of one or more of g and B, with the remainder consisting of Fe and unavoidable impurities.
以下、Ｍｎ：５．０％以下、Ｓ：０．０３〜０．３％、
Ｎｉ：７．０〜１５．０％、Ｃｒ：１６．０〜２２．０
％、Ｍｏ：４．０％以下、希土類元素：０．２０％、Ｃ
ａおよびＭｇの少なくとも１種：０．１０％以下、Ｃｕ
：３．０％以下、Ｖ：０．５％以下、Ｎｂ：０．５％以
下、Ｎ：０．１〜０．４％、Ｂ：０．０１％以下を含有
し、残部Ｆｅならびに不可避の不純物からなることを特
徴とする非磁性工具鋼。(5) In weight%, C: 0.15% or less, Si: 1.0%
Below, Mn: 5.0% or less, S: 0.03 to 0.3%,
Ni: 7.0-15.0%, Cr: 16.0-22.0
%, Mo: 4.0% or less, rare earth elements: 0.20%, C
At least one of a and Mg: 0.10% or less, Cu
: 3.0% or less, V: 0.5% or less, Nb: 0.5% or less, N: 0.1 to 0.4%, B: 0.01% or less, with the balance containing Fe and unavoidable A non-magnetic tool steel characterized by consisting of impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61315426A JPS63169362A (en) | 1986-12-29 | 1986-12-29 | Nonmagnetic tool steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61315426A JPS63169362A (en) | 1986-12-29 | 1986-12-29 | Nonmagnetic tool steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63169362A true JPS63169362A (en) | 1988-07-13 |
Family
ID=18065233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61315426A Pending JPS63169362A (en) | 1986-12-29 | 1986-12-29 | Nonmagnetic tool steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63169362A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0317245A (en) * | 1989-06-13 | 1991-01-25 | Nippon Koshuha Kogyo Kk | High strength non-magnetic stainless steel having excellent machinability |
| WO2012132679A1 (en) * | 2011-03-31 | 2012-10-04 | 株式会社クボタ | Cast austenitic stainless steel |
| CN108220822A (en) * | 2018-01-15 | 2018-06-29 | 宿州博斯特精密铸造有限公司 | A kind of HIGH STRENGTH NON-MAGNETIC STAINLESS STEEL |
| CN109023101A (en) * | 2018-09-21 | 2018-12-18 | 江西樟树市兴隆特殊钢有限公司 | A kind of nonmagnetic mould steel and preparation method thereof |
| CN111778456A (en) * | 2020-08-04 | 2020-10-16 | 湖州慧金材料科技有限公司 | Injection molding material G19, preparation method and application thereof in manufacturing of wearable equipment |
-
1986
- 1986-12-29 JP JP61315426A patent/JPS63169362A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0317245A (en) * | 1989-06-13 | 1991-01-25 | Nippon Koshuha Kogyo Kk | High strength non-magnetic stainless steel having excellent machinability |
| WO2012132679A1 (en) * | 2011-03-31 | 2012-10-04 | 株式会社クボタ | Cast austenitic stainless steel |
| CN103429778A (en) * | 2011-03-31 | 2013-12-04 | 株式会社久保田 | Cast austenitic stainless steel |
| EP2692887A1 (en) * | 2011-03-31 | 2014-02-05 | Kubota Corporation | Cast austenitic stainless steel |
| EP2692887A4 (en) * | 2011-03-31 | 2015-01-21 | Kubota Kk | Cast austenitic stainless steel |
| JP5863770B2 (en) * | 2011-03-31 | 2016-02-17 | 株式会社クボタ | Austenitic cast stainless steel |
| CN108220822A (en) * | 2018-01-15 | 2018-06-29 | 宿州博斯特精密铸造有限公司 | A kind of HIGH STRENGTH NON-MAGNETIC STAINLESS STEEL |
| CN109023101A (en) * | 2018-09-21 | 2018-12-18 | 江西樟树市兴隆特殊钢有限公司 | A kind of nonmagnetic mould steel and preparation method thereof |
| CN111778456A (en) * | 2020-08-04 | 2020-10-16 | 湖州慧金材料科技有限公司 | Injection molding material G19, preparation method and application thereof in manufacturing of wearable equipment |
| CN111778456B (en) * | 2020-08-04 | 2022-03-22 | 湖州慧金材料科技有限公司 | Injection molding material G19, preparation method and application thereof in manufacturing of wearable equipment |
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