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AMS SA-312 TP347LN Details

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SA-312 TP347LN Application:Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Category Type Grade Microstructure Designations
Grades Stainless Steels SA-312 TP347LN Precipitation-Hardening USA - AMS , SA-312/SA-312M - Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Chemical composition(wt.%) of SA-312 TP347LN grade: SA-312/SA-312M

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.005 0.02
Si - 0.75
Mn - 2.00
P - 0.04
S - 0.03
Ni 9.00 13.00
Cr 17.00 20.00
Al - -
Cu - -
Ti - -
Fe - -
N 0.06 0.10
Mo - -
V - -
Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Mechanical properties of grade SA-312 TP347LN SA-312/SA-312M

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)
442 (≥) 457 (≥) 24 21 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical properties of grade SA-312 TP347LN SA-312/SA-312M

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
287 (≥) 645 (≥) 42 23 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 213
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
281 341 958

SA-312 TP347LN - 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 182 F 347LN SAE USA
Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
A 193 347LN Class 1 SAE USA
Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
A 193 347LN Class 1A SAE USA
Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
A 193 347LN Class 1D SAE USA
Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
A 213 TP347LN SAE USA
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A 240 Type 347LN SAE USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 271 TP347LN SAE USA
Seamless Austenitic Chromium-Nickel Steel Still Tubes for Refinery Service
A 312 TP347LN SAE USA
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A 376 TP347LN SAE USA
Seamless Austenitic Steel Pipe for High-Temperature Central-Station Service
A 403 CR347LN SAE USA
Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
A 403 WP 347LN SAE USA
Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
A 580 Type 347LN SAE USA
Stainless Steel Wire
SA-213 TP347LN AMS USA
Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
SA-312 TP347LN AMS USA
Specification for Seamless and Welded Austenitic Stainless Steel Pipes

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