15MoG A65158 - GB 5310-1995

Grade	15MoG
China ISC	A65158
Corresponding Standard	GB 5310-1995 Seamless Steel Tubes and Pipes for High Pressure Boiler
Classification	Alloy Steel

15MoG Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^①	Ni ^①	Cu ^①	Mo
Minimum Value	0.12	0.17	0.4	-	-	-	-	-	0.25
Maximum Value	0.2	0.37	0.8	0.03	0.03	0.3	0.3	0.2	0.35

• Steel produced by oxygen converter and secondary refining outside the furnace has a nitrogen content not exceeding 0.008%

15MoG Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
Normalizing	450~600	≥270	long. ≥22 tr. ≥20	long. ≥35 tr. ≥27

Approximate Comparison Table Seamless Steel Tubes and Pipes for High Pressure Boiler

15MoG Corresponding Standards(Same grade name, different standards)

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