ML15 - GB /T 5953.1-2009

Grade	ML15
Corresponding Standard	GB /T 5953.1-2009 Steel Wire for Cold Heading and Cold Forging— Part 1: Intended for Heat Treatment
Classification	Carbon Steel

ML15 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.13	0.1	0.3	-	-
Maximum Value	0.18	0.3	0.6	0.035	0.035

ML15 Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %	Hardness HBW
d≤6	SALD	440~640	≥55
6＜d≤12	SALD	400~580	≥55
12＜d≤25	SALD	380~530	≥50	HRB ≤83
d≤25	SA	350~500	≥60	HRB ≤80

1 Approximate Comparison Table Cold Heading Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

Russia

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

BS EN/BS

ML15

U40152

SWRCH15K

1015

G10150

CC15A
(A4Al)

QSt38-3
(C14C)
Cq15
(C15C)

1.0234
-
1.1132

FR15
FB18
FR18

15nc

0/3

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM	ISO	EN	Numerical Grade
ML15	U40152	SWRCH15K	1015	CC15K	C15C	1.0234

3 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China	Japan	South Korea	United States	International Organization for Standardization	Germany	European Standard	United Kingdom
GB	JIS	KS	ASTM	ISO	DIN EN/DIN	EN	BS EN/BS
ML15	SWRCH15K	SWCH15K	1015	CC15A C15GC	QSt38-3	C15E2C	0/3

ML15 Corresponding Standards(Same grade name, different standards)

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