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SAE A 959 Type 409Cb Details

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A 959 Type 409Cb Application:Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Category Type Grade Microstructure Designations
Grades Stainless Steels A 959 Type 409Cb Precipitation-Hardening USA - SAE , A 959 (2011) - Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Chemical composition(wt.%) of A 959 Type 409Cb grade: A 959 (2011)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.06
Si - 1.00
Mn - 1.00
P - 0.045
S - 0.04
Ni - 0.50
Cr 10.50 11.75
Al - -
Cu - -
Ti - -
Fe - remaining
N - -
Mo - -
V - -
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Mechanical properties of grade A 959 Type 409Cb A 959 (2011)

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)
451 (≥) 961 (≥) 34 32 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical properties of grade A 959 Type 409Cb A 959 (2011)

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
243 (≥) 537 (≥) 13 33 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 243
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
927 479 597

A 959 Type 409Cb - 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 959 Type 409Cb SAE USA
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
ER 409Cb AMS USA
Bare Stainless Steel Welding Electrodes and Rods
ER 409Cb AMS USA
Bare Stainless Steel Welding Electrodes and Rods

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