15 15# - GB /T 3078-2019

Grade	15
Other Names
Corresponding Standard	GB /T 3078-2019 Quality Structural Steel Cold Drawm Bars
Classification	Carbon Steel

15 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
Delivery condition	Annealing, Bright Annealing, High-Temperature Tempering or Normalizing and Tempering				≤179
Delivery condition	Cold Drawing, Cold Drawing and Polishing				≤229
Delivery condition	Cold Drawing	≥470	≥8	≥45
Delivery condition	Annealing	≥345	≥28	≥55

1 Approximate Comparison Table High-Quality Carbon Structural Steel

China

Taiwan, China

Japan

South Korea

United States

Germany

France

Russia

Sweden

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

BS EN/BS

U20152

S15C

SM15C

1015

G10150

C15
Ck15

1.0401
1.1141

C12
XC15

1350
1370

040A15
080M15

2 Approximate Comparison Table High-Quality Carbon Structural Steel

3 Approximate Comparison Table High-Quality Carbon Structural Steel

China	Japan	United States	International Organization for Standardization	Germany		France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
15	S15C	Gr.1015 Gr.1016	C15E4	C15 Ck15	1.1141	C18RR XC12 XC15	C15E	1.1141	15	1370	040A15 080M15 CS17

4 Approximate Comparison Table High-Quality Carbon Structural Steel

5 Approximate Comparison Table High-Quality Carbon Structural Steel

China	Japan	South Korea	United States	International Organization for Standardization	Germany		France	Russia	United Kingdom
GB	JIS	KS	ASTM/AISI	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	BS EN/BS
15	S15C	STKM12B	1015	C15E4	C15C	1.0234	C15C	15	C15C

15 Corresponding Standards(Same grade name, different standards)

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