Location » Home » Grades > Stainless Steels > 2Cr25Ni20

GB 2Cr25Ni20 Details

Tags

2Cr25Ni20 Application:Seamless stainless steel tubes for boiler and heat exchanger

Category Type Grade Microstructure Designations
Grades Stainless Steels 2Cr25Ni20 Austenite China - GB , 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

Chemical composition(wt.%) of 2Cr25Ni20 grade: 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

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)
765 (≥) 979 (≥) 21 31 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

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
265 (≥) 794 (≥) 44 32 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 314
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
489 525 261

2Cr25Ni20 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
2Cr25Ni20 GB China
Seamless stainless steel tubes for boiler and heat exchanger

Enquiry