15CrMo A30152 - GB 6479-2000

Grade	15CrMo
China ISC	A30152
Corresponding Standard	GB 6479-2000 Seamless Steel Tubes for High-Pressure Chemical Fertilizer Equipments
Classification	Alloy Steel

15CrMo 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

15CrMo 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 + tempering	440~640	≥235	≥21	KU2 ≥47

• When the final rolling temperature of hot-rolled pipes meets the normalizing temperature, normalizing can be used as a substitute.
• Steel pipes with an outer diameter d≥57mm and a wall thickness T≥14mm shall undergo U-notch impact tests as standard specimens. The evaluation of impact test results shall be in accordance with the provisions of GB/T 17505.
• Except for 12Cr2Mo, for other grades, when the wall thickness T is greater than 16 to 40mm, the yield point is allowed to decrease by 10MPa.

* Normalizing + tempering NT: Normalizing at 930°C to 960°C, tempering at 680°C to 720° C. Holding time: more than 2 hours for periodic furnaces and more than 1 hour for continuous furnaces.

1 Approximate Comparison Table Structural Alloy Steel

China		Taiwan, China	Japan	South Korea	Germany		France	Russia	United Kingdom
YB	ISC	CNS	JIS	KS	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	BS EN/BS
15CrMo	A30152	SCM415	SCM415	SCM415	15CrMo5	1.7262	15CD4.05	15ХМ	1501-620Cr31

2 Approximate Comparison Table Structural Alloy Steel

China	United States
GB	ASTM/AISI
15CrMo	A182 F12

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

1	GB /T 3077-1999
	15CrMo A30152
2	GB /T 17107-1997
	15CrMo
3	GB 6479-2013
	15CrMo A30152
4	GB 6479-2000
	15CrMo A30152
5	GB /T 3077-2015
	15CrMo A30152
6	Q/BQB 517-2018
	15CrMo
7	GB /T 3078-2019
	15CrMo
8	NB /T 47008-2017
	15CrMo
9	GB /T 37601-2019
	15CrMo

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