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GB 12Cr18Mn9Ni5N Details

GB 12Cr18Mn9Ni5N Standard Download

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12Cr18Mn9Ni5N Application:Stainless steel bars

Category Type Grade Microstructure Designations
Grades Stainless Steels 12Cr18Mn9Ni5N Austenite China - GB , GB/T 1220-2007 - Stainless steel bars
JIS G 4303：1998 -
GB/T 1220-1992 - alternate standard

Chemical composition(wt.%) of 12Cr18Mn9Ni5N grade: GB/T 1220-2007

Elements Min.（≥） Max.（≤） Similar Remarks
C - 0.15
Si - 1.0
Mn 7.5 10.0
P - 0.05
S - 0.03
Cr 17.0 19.0
Ni 4.0 6.0
N 0.05 0.25
GB/T 1220-2007 standard specifies the stainless steel rods order contents, classification, code, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, logo and certificate of quality.This standard applies to the size is not more than 250 mm hot rolled and forged stainless steel rods.The supply and demand both sides talks things over, can also supply the size larger than 250 mm hot rolled and forged stainless steel rods.

Mechanical properties of grade 12Cr18Mn9Ni5N GB/T 1220-2007

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)
774 (≥) 329 (≥) 41 11 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical properties of grade 12Cr18Mn9Ni5N GB/T 1220-2007

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
716 (≥) 317 (≥) 33 32 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 431
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
963 368 696

12Cr18Mn9Ni5N - 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
12Cr18Mn9Ni5N GB China
Stainless steel bars
S35450 GB China
Stainless steel bars

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