27ХГСНМДТЛ 27KhGSNMDTL - GOST 21357-1987 - H2ABC

中文版

Grade	27ХГСНМДТЛ
Other Names
Corresponding Standard	GOST 21357-1987 Castings Made of Cold-and Wear-Resistant Steel
Classification	Cast Steel

27ХГСНМДТЛ Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti
Minimum Value	0.22	0.7	0.9	-	-	0.7	0.7	0.3	0.1	0.03
Maximum Value	0.31	1.3	1.5	0.02	0.02	1.3	1.2	0.5	0.3	0.07

27ХГСНМДТЛ Mechanical Properties

form	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
Casting	Normalizing 910~930°C, Tempering 590~610°C	≥800	≥650	≥12	≥20		KCV-60: ≥3KJ/m2 KCU-60: ≥5KJ/m2
Casting	Quenching 910~930°C, water cooling, Tempering 640~660°C	≥850	≥700	≥12	≥25		KCV-60: ≥3.5KJ/m2 KCU-60: ≥5KJ/m2
Casting	Quenching 910~930°C, water cooling, Tempering 200~220°C	≥1400	≥1150	≥8	≥12	≥390	KCV-60: ≥2.5KJ/m2 KCU-60: ≥4KJ/m2

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