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JIS SUS 329J 4L Details

SUS 329J 4L Application:Cold-formed stainless steel sections

Category Type Grade Microstructure Designations
Grades Stainless Steels SUS 329J 4L Austenitic-Ferritic(Duplex steel) Japan - JIS , G 4320 (2003) - Cold-formed stainless steel sections

Chemical composition(wt.%) of SUS 329J 4L grade: G 4320 (2003)

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
Cold-formed stainless steel sections

Mechanical properties of grade SUS 329J 4L G 4320 (2003)

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)
287 (≥) 574 (≥) 41 11 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical properties of grade SUS 329J 4L G 4320 (2003)

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
978 (≥) 426 (≥) 32 31 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 232
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
478 587 565

SUS 329J 4L - 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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