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SAE B 439 FG-0303-K12 Details

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B 439 FG-0303-K12 Application:Standard Specification for Iron-Base Powder Metallurgy (PM) Bearings (Oil Impregnated)

Category Type Grade Microstructure Designations
Grades Stainless Steels B 439 FG-0303-K12 Precipitation-Hardening USA - SAE , B 439 (2012) - Standard Specification for Iron-Base Powder Metallurgy (PM) Bearings (Oil Impregnated)

Chemical composition(wt.%) of B 439 FG-0303-K12 grade: B 439 (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.01
Si - 0.05
Mn - 1.50
P - 0.04
S - 0.01
Ni - remaining
Cr 0.50 1.50
Al 0.10 0.50
Cu - 0.50
Ti - -
Fe 1.00 6.00
Mo 26.00 30.00
Co - 2.50
Standard Specification for Iron-Base Powder Metallurgy (PM) Bearings (Oil Impregnated)

Mechanical properties of grade B 439 FG-0303-K12 B 439 (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)
479 (≥) 258 (≥) 11 33 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical properties of grade B 439 FG-0303-K12 B 439 (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
553 (≥) 382 (≥) 22 34 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 121
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
318 513 633

B 439 FG-0303-K12 - 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
B 402 C70600 SAE USA
Copper-nickel alloy plate and sheet for pressure vessels
B 402 C71500 SAE USA
Copper-nickel alloy plate and sheet for pressure vessels
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Magnesium-Alloy Investment Castings
B 403 AZ92A SAE USA
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B 403 AZ92A SAE USA
Magnesium-Alloy Investment Castings
B 403 EQ21A SAE USA
Magnesium-Alloy Investment Castings
B 403 EZ33A SAE USA
Magnesium-Alloy Investment Castings
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Magnesium-Alloy Investment Castings
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Magnesium-Alloy Investment Castings
B 403 ZE41A SAE USA
Magnesium-Alloy Investment Castings
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Magnesium-Alloy Investment Castings
B 407 N06811 SAE USA
Nickel-Iron-Chromium Alloy Seamless Pipe and Tube
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Nickel-Iron-Chromium Alloy Seamless Pipe and Tube
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Nickel-Iron-Chromium Alloy Seamless Pipe and Tube
B 407 N08810 SAE USA
Nickel-Iron-Chromium Alloy Seamless Pipe and Tube
B 407 N08811 SAE USA
Nickel-Iron-Chromium Alloy Seamless Pipe and Tube

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