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JIS SUS 329J 4LTB Details

SUS 329J 4LTB Application:Stainless steel boiler and heat exchanger tubes

Category Type Grade Microstructure Designations
Grades Stainless Steels SUS 329J 4LTB Austenitic-Ferritic(Duplex steel) Japan - JIS , G 3463 (2012) - Stainless steel boiler and heat exchanger tubes

Chemical composition(wt.%) of SUS 329J 4LTB grade: G 3463 (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 1.00
Mn - 1.50
P - 0.04
S - 0.03
Cr 24.00 26.00
Ni 5.50 7.50
Mo 2.50 3.50
N 0.08 0.30
Stainless steel boiler and heat exchanger tubes

Mechanical properties of grade SUS 329J 4LTB G 3463 (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)
488 (≥) 475 (≥) 44 43 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical properties of grade SUS 329J 4LTB G 3463 (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
949 (≥) 328 (≥) 44 12 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 244
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
884 476 229

SUS 329J 4LTB - 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
SUS 329J 4L JIS Japan
Stainless steel bars
SUS 329J 4L JIS Japan
Hot-rolled stainless steel plates, sheet and strip
SUS 329J 4L JIS Japan
Cold-rolled stainless steel plate, sheet and strip
SUS 329J 4L JIS Japan
Hot-formed stainless steel sections
SUS 329J 4L JIS Japan
Cold-formed stainless steel sections
SUS 329J 4LTB JIS Japan
Stainless steel boiler and heat exchanger tubes
SUS 329J 4LTP JIS Japan
Stainless steel pipes
SUS 329J4 LTPY JIS Japan
Large diameter welded stainless steel pipes

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