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Home » Product » GB spring steel » Hot Rolled GB 60Si2MnA SPRING STEEL FLAT BAR-Chinese Steel Material Grade

Hot Rolled GB 60Si2MnA SPRING STEEL FLAT BAR-Chinese Steel Material Grade

GB 60Si2MnA SPRING STEEL FLAT BAR

GB 60Si2MnA SPRING STEEL FLAT BAR have good mechanical properties and process performance,and high hardenability.It used as a large cross-section of the high load of important spring and valve spring, piston spring, safety valve spring.

GB 60Si2MnA SPRING STEEL FLAT BAR have good mechanical properties and process performance,and high hardenability.It used as a large cross-section of the high load of important spring and valve spring, piston spring, safety valve spring.

 

Similar Grades

Spring steel: 60Si2Mn ASTM9260/DIN:1.0906 1.5028 1.0961/JIS SUP7

 

Chemical composition

Standard Grade Chemical composition (%)
C Si Mn P S

 

Cr Ni
GB 60Si2Mn 0.56-0.64 1.50-2.00 0.70-1.00 ≤0.035 ≤0.035 ≤0.35 ≤0.35

 

Mechanical Properties

Quantity Value Unit
Young’s modulus 200000 – 200000 MPa
Tensile strength 650 – 880 MPa
Elongation 42972 %
Fatigue 275 – 275 MPa
Yield strength 350 – 550 MPa

 GB 60Si2MnA SPRING STEEL FLAT BAR

 

Physical Properties

Quantity Value Unit
Thermal expansion 10-10 e-6/K
Thermal conductivity 25 – 25 W/m.K
Specific heat 460 – 460 J/kg.K
Melting temperature 1450 – 1510 °C
Density 7700 – 7700 kg/m3
Resistivity 0.55 – 0.55 Ohm.mm2/m

 

Available Size

Hot rolled flat bar:

thickness: 5mm-115mm,

width50mm-250mm

 

Available Heat Treatment

Annealing/Normalizing/Hardening/Tempering/Quenching

Quenching temperature: 830℃-860℃, oil cooling

Tempering temperature: 490℃-540℃

 

Characteristics

  1. High strength.
  2. High hardenability.

 

Application

Valve spring, piston spring, safety valve spring

GB 60Si2MnA SPRING STEEL FLAT BAR

 

Delivery Condition

Hot-rolled steel is heat-treated or heat-treated, and cold-drawn steel is heat-treated

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