15CrMoG A30158 - GB 5310-1995

Grade	15CrMoG
China ISC	A30158
Corresponding Standard	GB 5310-1995 Seamless Steel Tubes and Pipes for High Pressure Boiler
Classification	Alloy Steel

15CrMoG Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni ^①	Cu ^①	Mo
Minimum Value	0.12	0.17	0.4	-	-	0.8	-	-	0.4
Maximum Value	0.18	0.37	0.7	0.03	0.03	1.1	0.3	0.2	0.55

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

15CrMoG 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
Longitudinal	Normalizing + Tempering	440~640	≥235	≥21	≥35
Transverse	Normalizing + Tempering	≥440	≥225	≥20	≥27

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

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

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