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SAE A 581 S18235 Details

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A 581 S18235 Application:Free-Machining Stainless Steel Wire and Wire Rods

Category Type Grade Microstructure Designations
Grades Stainless Steels A 581 S18235 Ferrite USA - SAE , A 581/A 581M (2009) - Free-Machining Stainless Steel Wire and Wire Rods

Chemical composition(wt.%) of A 581 S18235 grade: A 581/A 581M (2009)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.025
Mn - 0.50
Si - 1.00
P - 0.03
S 0.15 0.35
Cr 17.50 18.50
Ni - 1.00
Mo 2.00 2.50
Ti 0.30 1.00
N - 0.025

Free-Machining Stainless Steel Wire and Wire Rods

Mechanical properties of grade A 581 S18235 A 581/A 581M (2009)

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)
762 (≥) 284 (≥) 41 34 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical properties of grade A 581 S18235 A 581/A 581M (2009)

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
585 (≥) 444 (≥) 31 13 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 313
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
856 693 491

A 581 S18235 - 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 581 S18235 SAE USA
Free-Machining Stainless Steel Wire and Wire Rods
A 582 S18235 SAE USA
Standard Specification for Free-Machining Stainless Steel Bars
A 959 S18235 SAE USA
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
S18235 AISI USA
Ferritic Chromium Stainless Steel

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