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Quick Details

  • Standard: AISI, ASTM, BS, DIN, GB, JIS
  • Place of Origin: Shanghai, China (Mainland)
  • Brand Name: SMC
  • Alloy Or Not: Is Alloy
  • Type: Alloy Steel Bar, Round Bar & Flat Bar
  • Product Name: Hot Rolled Spring Steel Flat Bar
  • Brand name: SMC
  • Grade: 65-85, 65Mn, 55SiMnV, 60Si2MnA, 60Si2CrA, etc.
  • Feature: High Strength and Toughness.
  • Application: Motor Vehicle Industry and General Engineering applications.
  • Typical application: Crankshafts, steering knuckles, gears, spindles and pumps

Packaging & Delivery

Packaging Details: Standard export seaworthy packing.
Delivery Detail: 3-4 weeks

Specifications

Hot Rolled Spring Steel Flat Bar :
1.Grade: 65-85, 65Mn, 55SiMnV, 60Si2MnA, 60Si2CrA, etc.
2.Type: round bar & flat bar

Specification of Hot Rolled Spring Steel Flat Bar
 
Grade: 65-85, 65Mn, 55SiMnV, 60Si2MnA, 60Si2CrA, etc.

Round Bar:

Hot Rolled Round Bar: Φ14mm-Φ100mm (accept customization)

Coiled Round Bar (wire rod): >Φ25mm (as your request)

Cold Drawn Round Bar: Φ 5.5mm-Φ45mm

Peel Round Bright Bar: Φ12mm-Φ80mm

Flat Bar: (accept customization)

3. Features: The chemical compositions helps spring steel to endure significant bending or twisting and return to its original shape without deforming

4. We can offer a sample for your testing.

5.Application: Spring Steel is widely in the motor vehicle industry and many general engineering applications. It is suitable for applications that require high strength and toughness. Typical applications include crankshafts, steering knuckles, gears, spindles and pumps. 

6.   Grade

Grade

 

GB

ASTM

JIS

DIN

 
 

65Mn

1066

   

55Si2Mn

9255

 

55Si7

 

60Si2Mn

9260

SUP6

60Si7

 

60Si2MnA

9260

SUP6

60Si7

 

55CrMnA

5155

SUP9

55Cr3

 

60CrMnA

5160

SUP9A

  

50CrVA

6150

SUP10A

51CrV4

 

60CrMnBA

51B60

SUS11

58CrMnB4

 

 

 

 

7. Chemical Components:

Components

Grade

C

Si

Mn

Cr

V

B

P

S

HB

65Mn

0.62-0.70

0.17-0.37

0.90-1.20

≤0.25

  

≤0.035

≤0.035

≤302

55Si2Mn

0.52-0.60

1.50-2.00

0.60-0.90

≤0.35

  

≤0.035

≤0.035

≤302

60Si2Mn

0.56-0.64

1.50-2.00

0.60-0.90

≤0.35

  

≤0.035

≤0.035

≤321

60Si2MnA

0.56-0.64

1.60-2.00

0.60-0.90

≤0.35

  

≤0.03

≤0.03

≤321

55CrMnA

0.52-0.60

0.17-0.37

0.65-0.95

0.65-0.95

  

≤0.03

≤0.03

≤321

60CrMnA

0.56-0.64

0.17-0.37

0.70-1.00

0.70-1.00

  

≤0.03

≤0.03

≤321

50CrVA

0.46-0.54

0.17-0.37

0.50-0.80

0.80-1.10

0.10-0.20

 

≤0.03

≤0.03

≤321

60CrMnBA

0.56-0.64

0.17-0.37

0.70-1.00

0.70-1.00

 

0.0005-0.004

≤0.03

≤0.03

≤321

 

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