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GB 1Cr21Ni5Ti Details

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1Cr21Ni5Ti Application:Cold rolled stainless steel sheets and plates

Category Type Grade Microstructure Designations
Grades Stainless Steels 1Cr21Ni5Ti Austenitic-Ferritic(Duplex steel) China - GB , GB 2270 (1980) - Seamless tubes
GB/T 3280 (2007) - Cold rolled stainless steel sheets and plates

Chemical composition(wt.%) of 1Cr21Ni5Ti grade: GB 2270 (1980)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.09 0.14
Si - 0.80
Mn - 0.80
P - 0.035
S - 0.030
Ni 4.80 5.80
Cr 20.00 22.00
Ti - 5x(C%-0.02)-0.80
1Cr21Ni5Ti

Mechanical properties of grade 1Cr21Ni5Ti GB 2270 (1980)

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)
477 (≥) 691 (≥) 31 32 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical properties of grade 1Cr21Ni5Ti GB 2270 (1980)

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
317 (≥) 781 (≥) 44 22 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 444
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
114 528 152

1Cr21Ni5Ti - 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
1Cr21Ni5Ti GB China
Cold rolled stainless steel sheets and plates

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