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SAE F738 Class C4-50 S41623 Details

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F738 Class C4-50 S41623 Application:Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs

Category Type Grade Microstructure Designations
Grades Stainless Steels F738 Class C4-50 S41623 Martensite USA - SAE , F 738M (2002) - Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs

Chemical composition(wt.%) of F738 Class C4-50 S41623 grade: F 738M (2002)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.15 -
Mn - 1.25
Si - 1.00
P - 0.06
S - 0.06
Cr 12.00 14.00
Ni - -
Mo - 0.60
Se 0.15 -

Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs

Mechanical properties of grade F738 Class C4-50 S41623 F 738M (2002)

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)
229 (≥) 345 (≥) 31 42 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical properties of grade F738 Class C4-50 S41623 F 738M (2002)

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
754 (≥) 368 (≥) 13 14 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 134
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
337 488 841

F738 Class C4-50 S41623 - 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 314 S41623 SAE USA
Stainless Steel Billets and Bars for Forging
A 473 S41623 SAE USA
Stainless Steel Forgings
A 581 S41623 SAE USA
Free-Machining Stainless Steel Wire and Wire Rods
A 582 S41623 SAE USA
Standard Specification for Free-Machining Stainless Steel Bars
A 895 S41623 SAE USA
Free-Machining Stainless Steel Plate, Sheet, and Strip
F738 Class C4-50 S41623 SAE USA
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F738 Class C4-70 S41623 SAE USA
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F836 Class C4-110 S41623 SAE USA
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)
F836 Class C4-70 S41623 SAE USA
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)
S41623 AISI USA
Martensitic Chromium Free Machining Stainless Steel (416Se)

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