28Cr3SiNiMoWVA - QJ 2142-1991 - H2ABC

中文版

Grade	28Cr3SiNiMoWVA
Corresponding Standard	QJ 2142-1991 Heat Treatment of Ultra-High Strength Steel
Classification	Alloy Steel

28Cr3SiNiMoWVA Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	V
Minimum Value	0.26	0.9	0.5	-	-	2.8	0.8	0.3	0.1
Maximum Value	0.31	1.2	0.8	0.02	0.02	3.3	1.2	0.5	0.2

28Cr3SiNiMoWVA Mechanical Properties

materia form	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW	Impact Energy Absorption KV2 J
Plate	300~320°C Tempering	1617~1715	1372~1470	9.5~11	HRC: 48~49	Impact value (MJ/m²): 0.77~0.83
Plate	310~330°C Isothermal Tempering	1590~1610	1180~1235	13.5~15	HRC: 46~47	Impact value (MJ/m²): 0.83~1.4
Spinning Cylinder	580±10°C Tempering	1336~1434	1270~1368	15~15.8	HRC: 40~45	-
Rod	280~320°C Tempering	≥1784	≥1372	≥9	HRC: ≥48	-

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!