• SPRING STEEL - 51CrV4 / 1.8159 / SUP 10 / 50CrVA
  • SPRING STEEL - 51CrV4 / 1.8159 / SUP 10 / 50CrVA
 
  • 51CrV4 / 1.8159 / SUP 10 / 50CrVA
  • 51CrV4 / 1.8159 / SUP 10 / 50CrVA

SPRING STEEL
51CrV4 / 1.8159 / SUP 10 / 50CrVA

51CrV4 Spring steel Mechanical Properties:

Tensile strength of sigma b (MPa) : 1274 (130) or higher;Yield strength sigma s (MPa) : 1127 (115) or higher;Elongation delta (%) : 10 or more;Reduction of area bits (%) : 40 or higher;51crv4 working temperature can reach 300 degrees Celsius, 60 si2mn only 250 degrees. In addition, more than 60 si2mn for plate spring, volute spring and spring manufacture below 30 mm wire diameter, 51 crv4 much larger diameter used spring manufacture.

ASTM 51CrV4 Chemical Composition:

C Mn Si Cr V P S
0.47-0.55 0.70-1.10 ≤0.40 0.90-1.20 0.10-0.25 ≤0.025 ≤0.025
  • Introduction

  • Heat Treatment

  • Applications

  • Equivalent Grade

  • 51CrV4 Spring steel introduction:

    51crv4 (1.8159) spring steel good mechanical properties and process performance, high hardenability, adding vanadium steel grain refinement, reducing heat sensitivity, increase the strength and toughness, high fatigue strength, yield ratio is higher, but poor weldability, cold because of the low deformation plasticity.

  • Hardness

    Hot rolled, 321 hb or less; Cold drawn + heat treatment, 321 hb or less sigma s acuity 1175 mpa, sigma b p 1500 mpa, delta s 6% or higher, bits of 40% or higher, shear and torsion allowable stress p 1050 mpa. The fatigue life of 3 million times; Shear and torsion allowable stress p 1050 mpa.

    ANNEALING

    850 ℃ quenching + 20 ℃, oil cooling.

    HARDENING

    Hot rolled, 321 hb or less; Cold drawn + heat treatment, 321 hb or less.

    TEMPERING

    Tempering 500 ℃ + 50 ℃ (special needs, plus or minus 30 ℃).

  • 51CrV4 Spring steel Applications:

    51crv4 is a kind of more advanced spring, as a large section of the high load important spring and working temperature < 300 ℃ of the valvespring, piston, spring, the relief valve spring.

  • 51CrV4 steel Equivalent Grade:

    ASTM JIS DIN GOST GB
    6150 SUP10 1.8159 50XГФA 50CrVA

HOT STEEL

Huangshi Baoyi Materical Co., ltd.

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