3/2 - BS 3111(1)-1987

Grade	3/2
Corresponding Standard	BS 3111(1)-1987 Steel for cold forged fasteners and similar components — Part 1: Specification for carbon and low alloy steel wire
Classification	Alloy Steel
Properties	Forgability

3/2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr
Minimum Value	0.4	0.15	0.7	-	-	0.9
Maximum Value	0.45	0.4	0.9	0.035	0.035	1.2

3/2 Mechanical Properties

diameter d mm	Mark	Tensile Strength σ_b Mpa	Reduction of Area ψ %
All	COND A	≤610	≥55
All	COND B	≤680	≥52
5＜d≤10	COND C	≤780
d＞10	COND C	≤710

◎ the abbreviation COND and one of the following letters denoting the delivery conditions:
• COND A - drawn to size and finally spheroidize annealed;
• COND B - drawn, spheroidize annealed and finally light drawn;
• COND C - spheroidize annealed and finally light drawn;
• COND D - direct drawn.

Approximate Comparison Table Cold Heading Steel

China		United States		International Organization for Standardization	Germany		France	Russia	United Kingdom
GB	ISC	ASTM/AISI	UNS	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	BS EN/BS
ML40Cr	A20404	5140	G51400	41Cr4E (C16)	41Cr4	1.7035	38C4 42C4	40Х	3/2

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