摘要:
Steel for the manufacture of a component for bearings, the chemical composition of which comprises, by weight: 0.6%≦C≦1.5%; 0.4%≦Mn≦1.5%; 0.75%≦Si≦2.5%, 0.2%≦Cr≦2%; 0%≦Ni≦0.5%; 0%≦Mo≦0.2%; 0%≦Al≦0.05%; S≦0.04%; the balance being iron and impurities resulting from smelting and the composition furthermore satisfying the relationships: Mn≦0.75+0.55×Si and Mn≦2.5−0.8×Si. Process for the manufacture of a bearing component.
摘要翻译:用于制造用于轴承的部件的钢,其化学组成包含:0.6%<= C <= 1.5%; 0.4%<= Mn <= 1.5% 0.75%<= Si <= 2.5%,0.2%<= Cr <= 2%; 0%<= Ni <= 0.5%; 0%<= Mo <= 0.2%; 0%<= Al <= 0.05%; S <= 0.04%; 余量为铁和由熔炼产生的杂质,组合物还满足以下关系:Mn <= 0.75 + 0.55xSi,Mn <= 2.5-0.8xSi。 用于制造轴承部件的方法。
摘要:
Steel for the manufacture of a component for bearings, the chemical composition of which comprises, by weight: 0.6%.ltoreq.C.ltoreq.1.5%; 0.4%.ltoreq.Mn.ltoreq.1.5%; 0.75%.ltoreq.Si.ltoreq.2.5%; 0.2%.ltoreq.Cr.ltoreq.2%; 0%.ltoreq.Ni.ltoreq.0.5%; 0%.ltoreq.Mo.ltoreq.0.2%; 0%
摘要:
Steel chemical composition of which contains, by weight: 0.1%.ltoreq.C.ltoreq.0.4%; 1%.ltoreq.Mn.ltoreq.1.8%; 0.15%.ltoreq.Si.ltoreq.1.7%; 0%.ltoreq.Ni.ltoreq.1%; 0%.ltoreq.Cr.ltoreq.1.2%; 0%.ltoreq.Mo.ltoreq.0.3%; 0%.ltoreq.V.ltoreq.0.3%; Cu.ltoreq.0.35%; optionally from 0.005% to 0.06% of aluminum, optionally boron in contents of between 0.0005% and 0.01%, optionally between 0.005% and 0.03% of titanium, optionally between 0.005% and 0.06% of niobium, optionally from 0.005% to 0.1% of sulfur, optionally up to 0.007% of calcium, optionally up to 0.03% of tellurium, optionally up to 0.05% of selenium, optionally up to 0.05% of bismuth, optionally up to 0.1% of lead, the balance being iron and impurities resulting from smelting. Process for the manufacture of a forging.
摘要翻译:钢的化学成分含有,按重量计:0.1%C = 0.4%; 1% = Mn = 1.8%; 0.15% = Si = 1.7%; 0% = Ni = 1%; 0% = Cr = 1.2%; 0% = Mo = 0.3%; 0% = V = 0.3%; Cu = 0.35%; 任选地,0.005%至0.06%的铝,任选的硼的含量为0.0005%至0.01%,任选在0.005%至0.03%之间的钛,任选的0.005%至0.06%的铌,任选地为0.005%至0.1%的 硫,任选至多0.007%的钙,任选至多0.03%的碲,任选至多0.05%的硒,任选至多0.05%的铋,任选至多0.1%的铅,余量为铁和由 冶炼。 制造锻造工艺。
摘要:
Steel for the manufacture of forgings having a bainitic structure and the mechanical properties of which are: R.sub.p0.2 .gtoreq.800 MPa, R.sub.m .gtoreq.1000 MPa, K.sub.cu .gtoreq.50 J/cm.sup.2 its chemical composition comprising, by weight: 0.05%.ltoreq.C.ltoreq.0.12%, 0.1%.ltoreq.Si.ltoreq.0.45%, 1.01%.ltoreq.Mn.ltoreq.1.8%, 0.15%.ltoreq.Cr .ltoreq.1.15%, 0.06%.ltoreq.Mo.ltoreq.0.12%, Cu.ltoreq.0.30%, Ni.ltoreq.0.30%, 0.01%.ltoreq.Ti.ltoreq.0.04%, 0.005%.ltoreq.Al.ltoreq.0.04%, 0.006%.ltoreq.N.ltoreq.0.013%, 0.0005% 5 B.ltoreq.0.004%, P.ltoreq.0.025%, 0.02%.ltoreq.S.ltoreq.0.1%, 0%.ltoreq.Pb.ltoreq.0.1%, 0%.ltoreq.Te.ltoreq.0.07%, optionally from 0.0002% to 0.002% of calcium, the balance being iron and impurities resulting from the smelting, the chemical composition furthermore satisfying the relationship: 0.2% .ltoreq.Ni+Mo+Cu.ltoreq.0.7%, the uncombined boron content not being less than 0.0005% above 950.degree. C. Process for the manufacture of a forging.
摘要翻译:用于制造具有贝氏体结构的锻件的钢,其机械性能为:Rp0.2> / = 800MPa,Rm> / = 1000MPa,Kcu> / = 50J / cm 2,其化学组成包含按重量计: 0.05%C = 0.12%,0.1%≤Si≤0.45%,1.01% = Mn≤1.8%,0.15% Cr = 1.15%,0.06% Cu = 0.12%,Cu <0.30%,Ni <0.30%,0.01%Ti = 0.04%,0.005%Al = 0.04%,0.006% 0.025%,0.02%≤S≤0.1%,0%≤B≤0.1%,P ,0% = Te <0.07%,任选地从0.0002%至0.002%的钙,其余为铁和由熔炼产生的杂质,化学成分进一步满足关系:0.2% = Ni + Mo + Cu <0.7%,未组合的硼含量不低于950℃以上的0.0005%。制造锻造的方法。
摘要:
The invention relates to a method for fabricating a piece of structural steel that includes thermal or thermomechanical treatment steps that could ordinarily lower the fatigue strength and shock and impact resistance of the steel piece. In the method of the invention a workpiece of microalloy steel is fabricated containing the following elements in the mounts indicated and having a bainitic structure:______________________________________ C 0.05-0.5 wt. % Mo 0-0.5 wt. % Mn 1-2 wt. % V 0-0.30 wt. % Si 0.05-1.5 wt. % B 0-0.010 wt. % Cr 0.1-1 wt. % Ti 0-0.030 wt. % Nb 0-0.1 wt. % ______________________________________ The workpiece is then subjected to a treatment that includes a heating stage wherein at least a part of said piece is subjected to a temperature in the range 500.degree.-900.degree. C., followed by a cooling stage in which at least the part of the piece is subjected to cooling at a rate greater than 500.degree. C./hr. The composition and bainitic structure of the workpiece prevents its fatigue strength and shock and impact resistance from lowering in the part heated within the 500.degree.-900.degree. C. range. The invention further encompasses the structural steel fabricated by the aforementioned method.
摘要:
Steel for the manufacture of a component for bearings, the chemical composition of which comprises, by weight: 0.6%≦C≦1.5%; 0.4%≦Mn≦1.5%; 0.75%≦Si≦2.5%; 0.2%≦Cr≦2%; 0%≦Ni≦0.5%; 0%≦Mo≦0.2%; 0%
摘要翻译:用于制造用于轴承的部件的钢,其化学组成包含:0.6%<= C <= 1.5%; 0.4%<= Mn <= 1.5%; 0.75%<= Si <= 2.5%; 0.2%<= Cr <= 2%; 0%<= Ni <= 0.5%; 0%<= Mo <= 0.2%; 0%
摘要:
Steel useful for the manufacture of a separable mechanical component, whose chemical composition preferably comprises, by weight: 0.25%.ltoreq.C.ltoreq.0.75%, 0.2%.ltoreq.Si.ltoreq.1.5%, 0.1%.ltoreq.Mn.ltoreq.2%, 0%.ltoreq.Ni.ltoreq.1%, 0%.ltoreq.Cr.ltoreq.1%, 0%.ltoreq.Mo.ltoreq.1%, 0%.ltoreq.Cu.ltoreq.1%, 0%.ltoreq.V.ltoreq.0.2%, 0.02%.ltoreq.S.ltoreq.0.35%, 0.04%.ltoreq.P.ltoreq.0.2%, 0%.ltoreq.Al.ltoreq.0.005%, 0.005%.ltoreq.N.ltoreq.0.02%; optionally at least one element taken from lead, tellurium and selenium in contents of less than 0.1%, the balance being iron and impurities resulting from the smelting, the steel being optionally treated with calcium. Use of the steel for the manufacture of a separable component and component obtained.
摘要翻译:可用于制造可分离机械组分的钢,其化学组成优选包含:0.25%C = 0.75%,0.2%Si = 1.5%,0.1%Mn 0% = 1%,0% = 1%,0% = 1%,0% = 1%,0% = V <= 0.2%,0.02% = S 0.35%,0.04% = P <= 0.2%,0% %,0.005% = N <= 0.02%; 任选地,从铅,碲和硒的至少一种元素含量小于0.1%,余量为冶炼所产生的铁和杂质,钢可任选用钙处理。 使用钢制造可分离组分和组分。