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250 Application:Australia Structural steel
Category Type Steel grade Standard Country
Grades Special Alloy 250 AS Australia

Chemical composition % of the ladle analysis of grade 250

C(%) Si(%) P(%) S(%)
0.25 0.4 0.04 0.04
250
Mechanical properties of grade 250
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)
341 (≥) 866 (≥) 11 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 312
Physical properties of grade 250
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
424 (≥) 553 (≥) 13 21 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 214
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
798 165 636
250 Range of products
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
G2500 AS Australia
Used in the products of the automobile, truck, tractor, and allied industries; small cylinder blocks, cylinder heads, air cooled cylinders, pistons, clutch plates, oil pump bodies, transmission cases, gear boxes, clutch housings, and light-duty brake drum
G2500a AS Australia
Used in the products of the automobile, truck, tractor, and allied industries
A 213 S21500 AS Australia
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A 959 S21500 AS Australia
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
S21500 AS Australia
Austenitic Chromium Manganese Nickel Molybdenum Stainless Steel
SA-213 S21500 AS Australia
Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A 240 Type 2507 AS Australia
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 270 2507 AS Australia
Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
A 790 Type 2507 AS Australia
Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
A 928 Type 2507 AS Australia
Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal
A 959 Type 2507 AS Australia
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
SA-240 Type 2507 AS Australia
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
SA-790 Type 2507 AS Australia
Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Pipe
A 646 Grade Marage 250 AS Australia
Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings
Marage 250 AS Australia
Steel, Bars, Forgings, Tubing, and Rings 18Ni - 7.8Co - 4.9Mo - 0.40Ti - 0.10Al Consumable Electrode Vacuum Melted, Annealed
Marage 250 AS Australia
Steel, Maraging, Sheet, Strip, and Plate 18Ni - 7.8Co - 4.9Mo - 0.40Ti - 0.10AI Consumable Electrode Melted, Solution Heat Treated
Marage 250 AS Australia
Steel, Maraging, Welding Wire 18Ni - 8.0Co - 4.9Mo - 0.40Ti - 0.10Al Vacuum Induction Melted, Environment Controlled Packaging
Marage 250 AS Australia
Steel, Bars, Forgings, Tubing, and Rings 18Ni - 7.8Co - 4.9Mo - 0.40Ti - 0.10Al Consumable Electrode Vacuum Melted, Annealed
Marage 250 AS Australia
Steel, Maraging, Sheet, Strip, and Plate 18Ni - 7.8Co - 4.9Mo - 0.40Ti - 0.10AI Consumable Electrode Melted, Solution Heat Treated
Marage 250 AS Australia
Steel, Maraging, Welding Wire 18Ni - 8.0Co - 4.9Mo - 0.40Ti - 0.10Al Vacuum Induction Melted, Environment Controlled Packaging

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