40Cr10Si2Mo 4Cr10Si2Mo - GJB 2294A-2014

Grade	40Cr10Si2Mo
Old Grade
Corresponding Standard	GJB 2294A-2014 Specification for Stainless and Heat-Resisting Steel Bars for Aviation
Classification	Martensitic Stainless Steel

40Cr10Si2Mo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni ^①	Mo
Minimum Value	0.35	1.9	-	-	-	9	-	0.7
Maximum Value	0.45	2.6	0.7	0.03	0.02	10.5	0.6	0.9

40Cr10Si2Mo Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Quenching or Solution Annealing 1010~1050°C, oil quenching or air cooling; Tempering or Aging 720~780°C, oil quenching	≥930	≥735	≥10	≥35	269~341	≥16

New and Old Grade Replacement List

40Cr10Si2Mo Corresponding Standards(Same grade name, different standards)

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