6150 - ASTM A 646/A646M-2024

Grade	6150
ASTM Specification or Grade	Grade 14
Corresponding Standard	ASTM A646/A646M-2024 Standard Specification for Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings
Classification	Alloy Steel

6150 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	V
Minimum Value	0.48	0.2	0.7	-	-	0.8	0.15
Maximum Value	0.53	0.35	0.9	0.015	0.012	1.1	-

* If any of the following elements are not specified, the following maximum limits shall apply: Nickel 0.35 %; Chromium 0.20 %; Molybdenum 0.06 %; Copper 0.35 %

6150 Mechanical Properties

Heat Treatment or Condition	Hardness HBW
Annealing	≤235

1 Approximate Comparison Table Spring Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

Russia

Sweden

United Kingdom

ISC

CNS

JIS

AISI

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

GOST

SS₁₄

BS EN/BS

50CrVA

A23503

SUP10

SPS6

6150

G61500

51CrV4

1.8159

50CrV4

51CrV4

1.8159

50ХФА

2230

735A50

2 Approximate Comparison Table Structural Alloy Steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
50CrVA	SUP10	6150	51CrV4	50CrV4	50CrV4 50CV4 51CrV4	51CrV4	1.8159	50KHGFA	2230	735A50 735A51

6150 Corresponding Standards(Same grade name, different standards)

1	ASTM A29/A29M-2012
	6150 G61500
2	SAE J404-2000
	6150 G61500
3	SAE AMS 6448L-2013
	6150
4	ASTM A29/A29M-2020
	6150 G61500
5	ASTM A866-2014
	6150
6	ASTM A519/A519M-2024
	6150
7	ASTM A646/A646M-2024
	6150 Grade 14
8	SAE J404-2009
	6150 G61500
9	ASME SA-29/SA-29M-2023
	6150 G61500

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