Welded tube for process piping

Stainless Steel Round Tube

Welded round-tube cargo can cover structural, ornamental and process duties, from machine framework to fluid-transfer lines. The applicable standard, grade, finish and inspection scope should be matched to the intended use.

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Tube

Cargo group

201 / 304 / 304L

Reference grades

ASTM

Primary standard

Standards

ASTMA554, A249, A269, A270 (sanitary)
JISG3446, G3447 (sanitary), G3459 (pipe)
EN10217-7, 10357 (on request)

Dimensions

Outside diameter: Ø 6 - 219 mm
Wall thickness: 0.4 - 6.0 mm
Length: up to 6 m, cut to size

Finishes and applications

Mill2BBASatin (HL)Mirror (No.8)

Process & transfer piping
Machine framework & rollers
Heat-exchange and condenser tubing

Grades and properties

These values are references for quotation review. Actual heat values should be checked against the applicable mill test certificate.

201 / SUS201

ASTM 201 (S20100) / JIS SUS201 / EN 1.4372

Austenitic

Composition, wt %

C≤ 0.15

Cr16.0-18.0

Ni3.5-5.5

Mn5.5-7.5

Si≤ 1.00

P≤ 0.060

S≤ 0.030

N≤ 0.25

Minimum mechanical properties

Tensile strength: ≥ 515 MPa (75 ksi)
Yield strength (0.2%): ≥ 260 MPa (38 ksi)
Elongation: ≥ 40%
Hardness: ≤ 217 HB / 95 HRB

Annealed minimums based on ASTM A240 plate and sheet requirements. Tube standards such as A554 may differ; confirm the governing product standard and applicable 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

Minimum mechanical properties

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

Annealed minimums based on ASTM A240 plate and sheet requirements. Tube standards such as A554 may differ; confirm the governing product standard and applicable mill test certificate.

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

Minimum mechanical properties

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

Annealed minimums based on ASTM A240 plate and sheet requirements. Tube standards such as A554 may differ; confirm the governing product standard and applicable mill test certificate.

316 / SUS316

ASTM 316 (S31600) / JIS SUS316 / EN 1.4401

Austenitic

Composition, wt %

C≤ 0.08

Cr16.0-18.0

Ni10.0-14.0

Mo2.0-3.0

Mn≤ 2.0

Si≤ 0.75

P≤ 0.045

S≤ 0.030

Minimum mechanical properties

Tensile strength: ≥ 515 MPa (75 ksi)
Yield strength (0.2%): ≥ 205 MPa (30 ksi)
Elongation: ≥ 40%
Hardness: ≤ 217 HB / 95 HRB

Annealed minimums based on ASTM A240 plate and sheet requirements. Tube standards such as A554 may differ; confirm the governing product standard and applicable mill test certificate.

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

Minimum mechanical properties

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

Annealed minimums based on ASTM A240 plate and sheet requirements. Tube standards such as A554 may differ; confirm the governing product standard and applicable mill test certificate.

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