PL174868B1 - Low-alloy constructional cast steel - Google Patents
Low-alloy constructional cast steelInfo
- Publication number
- PL174868B1 PL174868B1 PL95308441A PL30844195A PL174868B1 PL 174868 B1 PL174868 B1 PL 174868B1 PL 95308441 A PL95308441 A PL 95308441A PL 30844195 A PL30844195 A PL 30844195A PL 174868 B1 PL174868 B1 PL 174868B1
- Authority
- PL
- Poland
- Prior art keywords
- cast steel
- low
- weight
- maximum
- manganese
- Prior art date
Links
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- Heat Treatment Of Steel (AREA)
Abstract
Staliwo niskostopowe konstrukcyjne zawierające wagowo: 0,23-0,30% węgla, 0,20-0,50% krzemu, maksimum 0,03% fosforu, maksimum 0,03% siarki, maksimum 0,30% chromu oraz mangan, nikiel, wanad i molibden, reszta żelazo i nieuniknione zanieczyszczenia, znamienne tym, że zawiera wagowo 1,100-1,40% manganu, 0,90-1,20% niklu, 0,05-0,12% wanadu i 0,15-0,25% molibdenu.Structural low-alloyed steel containing by weight: 0.23-0.30% carbon, 0.20-0.50% silicon, maximum 0.03% phosphorus, maximum 0.03% sulfur, maximum 0.30% chromium and manganese, nickel, vanadium and molybdenum, the rest iron and the inevitable impurities, characterized in that it contains by weight 1.100-1.40% manganese, 0.90-1.20% nickel, 0.05-0.12% vanadium and 0.15-0.25% molybdenum.
Description
Przedmiotem wynalazku jest staliwo niskostopowe konstrukcyjne, przeznaczone na części o bardzo wysokiej wytrzymałości na rozciąganie i pewności pracy.The subject of the invention is low-alloy structural cast steel, intended for parts with very high tensile strength and operational reliability.
Znane staliwa niskostopowe konstrukcyjne, o dużej wytrzymałości na rozciąganie, a łączone poprzez spawanie, zawierają następujące dodatki stopowe: mangan, krzem, chrom i nikiel. W staliwach tych zawartość węgla wynosi 0,2-0,30% wagowych, manganu 0,90-1,20% wagowych, krzemu 0,20-0,50% wagowych.Known low-alloy structural cast steels with high tensile strength, and joined by welding, contain the following alloy additives: manganese, silicon, chromium and nickel. In these cast steels the carbon content is 0.2-0.30% by weight, manganese 0.90-1.20% by weight, silicon 0.20-0.50% by weight.
Przykładowo staliwo niskostopowe według polskiego patentu nr 145 093 zawierające wagowo: węgla 0,27%, manganu 1,15%, krzemu 0,50%, chromu 0,20%, niklu 0,97%, fosforu 0,031% oraz siarki 0,01%, wykazuje wysoką wytrzymałość na rozciąganie, dużą plastyczność oraz dobrą spawalność.For example, low-alloy cast steel according to Polish patent No. 145 093 containing by weight: carbon 0.27%, manganese 1.15%, silicon 0.50%, chromium 0.20%, nickel 0.97%, phosphorus 0.031% and sulfur 0.01 %, shows high tensile strength, high plasticity and good weldability.
Celem wynalazku jest otrzymanie staliwa o bardzo dużej wytrzymałości na rozciąganie, o dobrej spawalności na zimno, a jednocześnie o twardości umożliwiającej dobrą obróbkę skrawaniem.The aim of the invention is to obtain cast steel with very high tensile strength, with good cold weldability, and at the same time with a hardness that allows good machining.
Staliwo zawierające wagowo: węgla 0,23-0,30%, krzemu 0,20-0,50%, fosforu i siarki maksimum po 0,03%, chromu maksimum 0,3%, według wynalazku zawiera wagowo: manganu 1,00-1,40%, niklu 0,90-1,20%, wanadu 0,05-0,12%, molibdenu 0,15-0,25%.Cast steel containing by weight: carbon 0.23-0.30%, silicon 0.20-0.50%, phosphorus and sulfur maximum 0.03% each, chromium maximum 0.3%, according to the invention, it contains: manganese 1.00 by weight -1.40%, nickel 0.90-1.20%, vanadium 0.05-0.12%, molybdenum 0.15-0.25%.
Staliwo według wynalazku posiada małą wrażliwość na zmiany własności mechanicznych, w zależności od grubości ścianek odlewu.The cast steel according to the invention has low sensitivity to changes in mechanical properties, depending on the thickness of the casting walls.
Przykładowo staliwo zawierające wagowo: węgla 0,29%, manganu 1,25%, krzemu 0,34%, fosforu 0,014%, siarki 0,015%, chromu 0,11%, niklu 1,12%, wanadu 0,09% i molibdenu 0,17% wykazuje bardzo wysoką wytrzymałość na rozciąganie, dobrą spawalność na zimno, może być obrabiane skrawaniem oraz posiada obniżony próg kruchości do -40°C. Po ulepszeniu cieplnym uzyskano następujące parametry:For example, cast steel containing by weight: carbon 0.29%, manganese 1.25%, silicon 0.34%, phosphorus 0.014%, sulfur 0.015%, chromium 0.11%, nickel 1.12%, vanadium 0.09% and molybdenum 0.17% has a very high tensile strength, good cold weldability, can be machined and has a reduced brittleness threshold down to -40 ° C. After thermal improvement, the following parameters were obtained:
wytrzymałość plastyczną wytrzymałość na rozciąganie wydłużenie przewężenie udamość twardośćplastic strength tensile strength elongation constriction impact hardness
IR - 943 MPaIR - 943 MPa
Rm- 1038 MPaRm- 1038 MPa
A5- 10,4% z- 31,0% KM- 51.4KJ/m2 A 5 - 10.4% - 31.0% KM - 51.4KJ / m 2
HB 311HB 311
Departament Wydawnictw UP RP. Nakład 90 egz. Cena 2,00 złPublishing Department of the UP RP. Circulation of 90 copies. Price PLN 2.00
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL95308441A PL174868B1 (en) | 1995-04-28 | 1995-04-28 | Low-alloy constructional cast steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL95308441A PL174868B1 (en) | 1995-04-28 | 1995-04-28 | Low-alloy constructional cast steel |
Publications (2)
Publication Number | Publication Date |
---|---|
PL308441A1 PL308441A1 (en) | 1996-11-12 |
PL174868B1 true PL174868B1 (en) | 1998-09-30 |
Family
ID=20064949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL95308441A PL174868B1 (en) | 1995-04-28 | 1995-04-28 | Low-alloy constructional cast steel |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL174868B1 (en) |
-
1995
- 1995-04-28 PL PL95308441A patent/PL174868B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL308441A1 (en) | 1996-11-12 |
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