65 65# - GB /T 3078-2019

Grade	65
Other Names
Corresponding Standard	GB /T 3078-2019 Quality Structural Steel Cold Drawm Bars
Classification	Carbon Steel

65 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Delivery condition	Annealing, Bright Annealing, High-Temperature Tempering or Normalizing and Tempering	≤255
Delivery condition	Cold Drawing, Cold Drawing and Polishing	* ≤285

1 Approximate Comparison Table High-Quality Carbon Structural Steel

China		United States		International Organization for Standardization	Germany		France	Russia	Sweden	United Kingdom
GB	ISC	ASTM/AISI	UNS	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	SS	BS EN/BS
65	U20652	1065	G10650	SL SM	Ck67	1.1231	XC65	65	1770	060A67

2 Approximate Comparison Table Spring Steel

China		Japan	United States		International Organization for Standardization	Germany		France	Russia	Sweden	United Kingdom
GB	ISC	JIS	AISI	UNS	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	SS₁₄	BS EN/BS
65	U20652	SUP2	1065	G10650	Type DC	Ck67	1.1231	XC65	65	1770	060A67

3 Approximate Comparison Table High-Quality Carbon Structural Steel

4 Approximate Comparison Table Spring Steel

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM/AISI	ISO	EN	Numerical Grade
65 (GB/T 1222-2016)	U20652	S65-CSP (JIS G4802:2005)	1065 (ASTM A29/A29M:2005)	C60E4 (ISO 683-18:1996)	C60E (EN 10083-1:1991+A1:1996)	1.1221

5 Approximate Comparison Table Spring Steel 1

65 Corresponding Standards(Same grade name, different standards)

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