2Cr25Ni20

2Cr25Ni20 Stainless Steels to GB 13296 (2007)

2Cr25Ni20 - Specification & Application

  • GB 13296 (2007) - Seamless stainless steel tubes for boiler and heat exchanger
  • GB 4238 (1992) - Heat-resisting steel sheets and plates
  • GB/T 1221 (1992) - Heat-resisting steel bars
  • JB/T 6398 (2006) - Heavy stainless acid resistant and heat resistant steel forgings

Seamless stainless steel tubes for boiler and heat exchanger

Chemical composition(wt.%) of 2Cr25Ni20 grade: to GB 13296 (2007)

Elements Min.（≥） Max.（≤） Similar Remarks
C - 0.25
Si - 1.50
Mn - 2.00
P - 0.35
S - 0.03
Ni 19.00 22.00
Cr 24.00 26.00

2Cr25Ni20 - Detail

2Cr25Ni20

Mechanical properties of grade 2Cr25Ni20 GB 13296 (2007)

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)
952 (≥) 954 (≥) 24 34 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical properties of grade 2Cr25Ni20 GB 13296 (2007)

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
875 (≥) 686 (≥) 11 23 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 441
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
633 788 781

Equivalent Grade

1 2Cr25Ni20

Equivalent Products

Product shapes we supply:

We can customize the production of 2Cr25Ni20 grade, contact us for the best solution.
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