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SAE F738 Class A1-80 S38400 Details

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F738 Class A1-80 S38400 Application:Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs

Category Type Grade Microstructure Designations
Grades Stainless Steels F738 Class A1-80 S38400 Austenite USA - SAE , F 738M (2002) - Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs

Chemical composition(wt.%) of F738 Class A1-80 S38400 grade: F 738M (2002)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Mn - 2.00
Si - 1.00
P - 0.03
S - 0.03
Cr 15.00 17.00
Ni 17.00 19.00
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs

Mechanical properties of grade F738 Class A1-80 S38400 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)
946 (≥) 431 (≥) 22 24 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical properties of grade F738 Class A1-80 S38400 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
418 (≥) 564 (≥) 24 24 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 233
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
338 447 596

F738 Class A1-80 S38400 - 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 493 S38400 SAE USA
Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
A 959 S38400 SAE USA
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
F 837 Class A1-50 S38400 SAE USA
Standard Specification for Stainless Steel Socket Head Cap Screws (Metric)
F 837 Class A1-55 S38400 SAE USA
Standard Specification for Stainless Steel Socket Head Cap Screws (Metric)
F 837 Class A1-70 S38400 SAE USA
Standard Specification for Stainless Steel Socket Head Cap Screws (Metric)
F738 Class A1-50 S38400 SAE USA
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F738 Class A1-70 S38400 SAE USA
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F738 Class A1-80 S38400 SAE USA
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F836 Class A1-50 S38400 SAE USA
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)
F836 Class A1-70 S38400 SAE USA
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)
SUS 384 JIS Japan
Stainless steel wire rods
SUS 384 WSA JIS Japan
Stainless steel wires for cold heading and cold forging
SUS 384 WSB JIS Japan
Stainless steel wires for cold heading and cold forging
2384 SS Sweden
Austenitic stainless free-cutting steel

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