20ГЛ 20GL - GOST 21357-1987

Grade	20ГЛ
Other Names
Corresponding Standard	GOST 21357-1987 Castings made of cold-and wear-resistant steel
Classification	Cast Steel

20ГЛ Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum Value	0.17	0.3	1.1	-	-	-	-	-
Maximum Value	0.25	0.5	1.4	0.02	0.02	0.3	0.3	0.3

20ГЛ 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 %	Impact Energy Absorption KV2 J
Casting	Normalizing 920~940°C	≥500	≥300	≥20	≥35	KCV-60: ≥2KJ/m2 KCU-60: ≥3KJ/m2
Casting	Quenching 920~940°C, water cooling; Tempering 600~620°C	≥550	≥400	≥15	≥30	KCV-60: ≥2KJ/m2 KCU-60: ≥3KJ/m2

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