1Cr5Mo Stainless Steels to GB 6479 (2000)

1Cr5Mo - Specification & Application

  • GB 6479 (2000) - Seamless steel tubes for high-pressure chemical fertilizer equipments
  • GB 9948 (2006) - Seamless steel tubes for petroleum cracking
  • GB/T 1221 (1992) - Heat-resisting steel bars
  • JB 4726 (2000) - Carbon and Low-alloy Steel Forgings for Pressure Vessels
  • JB/T 6398 (2006) - Heavy stainless acid resistant and heat resistant steel forgings

Seamless steel tubes for high-pressure chemical fertilizer equipments

Chemical composition(wt.%) of 1Cr5Mo grade: to GB 6479 (2000)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.15
Si - 0.50
Mn - 0.60
P - 0.035
S - 0.030
Ni - 0.60
Cr 4.00 6.00
Mo 0.45 0.60

1Cr5Mo - Detail

1Cr5Mo

Mechanical properties of grade 1Cr5Mo GB 6479 (2000)

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
955 (≥) 325 (≥) 42 33 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical properties of grade 1Cr5Mo GB 6479 (2000)

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
217 (≥) 835 (≥) 11 23 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 422
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
127 769 641

Equivalent Grade

Equivalent Products

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