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SAE A 1031 Grade 8645 Details

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A 1031 Grade 8645 Application:Steel, Sheet and Strip, Heavy-Thickness Coils, Alloy, Drawing Steel and Structural Steel, Hot-Rolled

Category Type Grade Microstructure Designations
Grades Stainless Steels A 1031 Grade 8645 Precipitation-Hardening USA - SAE , A 1031/A1031M (2012) - Steel, Sheet and Strip, Heavy-Thickness Coils, Alloy, Drawing Steel and Structural Steel, Hot-Rolled

Chemical composition(wt.%) of A 1031 Grade 8645 grade: A 1031/A1031M (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Ni 13.00 15.00
Cr 17.00 19.00
Al - -
Cu - -
Ti - -
Fe - -
N - -
Mo 1.75 2.75
V - -
Steel, Sheet and Strip, Heavy-Thickness Coils, Alloy, Drawing Steel and Structural Steel, Hot-Rolled

Mechanical properties of grade A 1031 Grade 8645 A 1031/A1031M (2012)

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)
782 (≥) 331 (≥) 44 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical properties of grade A 1031 Grade 8645 A 1031/A1031M (2012)

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
752 (≥) 473 (≥) 33 22 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
245 452 228

A 1031 Grade 8645 - 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
A 1049 S31803 SAE USA
Stainless Steel Forgings, Ferritic/Austenitic (Duplex), for Pressure Vessels and Related Components
A 240 S31803 SAE USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 270 S31803 SAE USA
Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
A 276 S31803 SAE USA
Stainless Steel Bars and Shapes
A 479 S31803 SAE USA
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A 511 S31803 SAE USA
Seamless Stainless Steel Mechanical Tubing
A 789 S31803 SAE USA
Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
A 790 S31803 SAE USA
Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
A 815 CRS31803 SAE USA
Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
A 815 WPS31803 SAE USA
Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
A 928 S31803 SAE USA
Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal
A 949 S31803 SAE USA
Spray-Formed Seamless Ferritic/Austenitic Stainless Steel Pipe
A 955 S31803 Grade 280 SAE USA
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 955 S31803 Grade 40 SAE USA
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 955 S31803 Grade 420 SAE USA
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 955 S31803 Grade 520 SAE USA
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 955 S31803 Grade 60 SAE USA
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 955 S31803 Grade 75 SAE USA
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 959 S31803 SAE USA
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
A 988 S31803 SAE USA
Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service

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