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Welded hollow section for machine frames

Stainless Steel Square Tube

Welded square hollow section for machine frames, structural supports and guarding in latex and rubber processing lines. Straight, uniform welds and clean corners.

Stacked square stainless steel hollow sections without external branding
Tube
cargo group
201 / 304 / 304L
core grades
ASTM
lead standard

Standards

  • ASTMA554 (ornamental/structural), A500
  • JISG3446 (structural)
  • EN10296-2 (on request)

Dimensions

Section
10×10 - 100×100 mm
Wall thickness
0.5 - 3.0 mm
Length
up to 6 m, cut to size

Finish and uses

Mill2BSatin (HL)Mirror (No.8)
  • Machine frames & structural supports
  • Equipment guarding & handrails
  • Conveyor and dip-line framework

Grades and properties

Values are standard references for quotation review. The actual heat values are confirmed by the mill test certificate.

304 / SUS304

ASTM 304 (S30400) / JIS SUS304 / EN 1.4301

Austenitic

Composition, wt %

C≤ 0.08
Cr18.0-20.0
Ni8.0-10.5
Mn≤ 2.0
Si≤ 0.75
P≤ 0.045
S≤ 0.030
N≤ 0.10

Mechanical minimums

Tensile strength
≥ 515 MPa (75 ksi)
Yield strength (0.2%)
≥ 205 MPa (30 ksi)
Elongation
≥ 40%
Hardness
≤ 201 HB / 92 HRB

304L / SUS304L

ASTM 304L (S30403) / JIS SUS304L / EN 1.4307

Austenitic

Composition, wt %

C≤ 0.030
Cr18.0-20.0
Ni8.0-12.0
Mn≤ 2.0
Si≤ 0.75
P≤ 0.045
S≤ 0.030
N≤ 0.10

Mechanical minimums

Tensile strength
≥ 485 MPa (70 ksi)
Yield strength (0.2%)
≥ 170 MPa (25 ksi)
Elongation
≥ 40%
Hardness
≤ 201 HB / 92 HRB

316L / SUS316L

ASTM 316L (S31603) / JIS SUS316L / EN 1.4404

Austenitic

Composition, wt %

C≤ 0.030
Cr16.0-18.0
Ni10.0-14.0
Mo2.0-3.0
Mn≤ 2.0
Si≤ 0.75
P≤ 0.045
S≤ 0.030

Mechanical minimums

Tensile strength
≥ 485 MPa (70 ksi)
Yield strength (0.2%)
≥ 170 MPa (25 ksi)
Elongation
≥ 40%
Hardness
≤ 217 HB / 95 HRB

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