Size Range

.039 to 1.18 round/flat wire (1-30mm)

 

Typical Specifications

• ASTM-A-229 Class I
• ASTM-A-229 Class II
• JIS G3560 / G3561
• DIN 10270
• ISO 8458
• Custom Spec.

 

Common Trade Names

• 55CrSi
• UNS K07001
• UNS G10650
• ASTM A229
• AISI 1065
• SAE J316T
• 60Si2MnA / 9260H / SUP7 / 56Si7 / 1.5026
• 50CrVA / 6150 / SUP10A /51CrV4 / 1.8159
• 55Cr3 / 5155 / SUP9 / 1.7176
• SAE9254 / 9254V / 60Si2CrA / SUP12 / 54SiCr6 / 1.7102
• 65Mn

 

Nominal Chemical & Physical Properties

• C: 0.55 0.85%
• Mn: 0.60 1.20%
• Minimum tensile strength: psi x 103 Class I 165-293, Class II 191-324
• Design stress % minimum tensile: 45
• Modulus of elasticity: psi x 106 30
• Modulus in torsion: psi x 106 11.5
• Maximum operating temperature: 250°F (121°C)
• Rockwell hardness: C42-55

 

Heat Treating ASTM A 229 Oil Tempered Wire

Oil tempered is delivered in pre-tempered condition. Therefore, no further hardening can be obtained via heat treating. however, depending on the application, springs and wire forms will undergo a stress-relieving process.

 

Oil tempered wire for springs

Product		Code	Application
Oil tempered carbon steel wire for springs	Type A	SWO-A	Springs mainly receiving static loads
	Type B	SWO-B	Springs mainly receiving dynamic loads
Oil tempered chrome silicon steel wire for springs		SWOSC-B

 

Oil tempered wire for Valve spring

Product	Code	Application
Oil tempered carbon steel wire for valve springs	SWO-V	Valve springs for engines Clutch springs Other essential springs
Oil tempered chrome vanadium steel wire	SWOCV-V
Oil tempered chrome silicon steel wire for valve springs	SWOSC-V
Oil tempered high-carbon chrome silicon steel wire for valve springs	SWOSC-VH
Oil tempered high-carbon chrome silicon vanadium steel wire for valve springs	SWOSC-VHV

 

Oil tempered wire for Suspension spring

Product	Code	Application
Oil tempered chrome silicon steel wire for suspension springs	SWOSC-K	Cold formed suspension springs
Oil tempered chrome silicon vanadium steel wire for suspension springs	SWOSC-KV