Active Member
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[China]
Address: Daqiao Developing Zone Haiyan,Zhejiang Province,China
Contact name:Richard
Torich International Limited |
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Cold rolled Seamless Stainless Steel Tubes 304 /316
Standard: GB/T 14975, ASTM A269 / A269M, ASTM A511 / A511 M
Material: S30408 S30403 304 304L TP304 TP304L 316 316L TP316 TP316L 12Cr18Ni9, 06Cr19Ni10, 022Cr19Ni10, 06Cr19Ni10N, 06Cr19Ni9NbN, 022Cr19Ni10N, 06Cr23Ni13, 06Cr25Ni20, 015Cr20Ni18Mo6CuN, 06Cr17Ni12Mo2, 022Cr17Ni12Mo2
Cold rolled Seamless Stainless Steel Tubes 304 /316
The Tolerance of Nominal Outer Diameter and Wall Thickness Unit:mm
| Cold Drawn(Roll) Steel Tube | |||
| Diamension | Tolerance | ||
| Ordinary Level PA | High Level PC | ||
Nominal Outer Diameter D | <12.7 | ±0.30 | ±0.10 |
| 12.7~<38.1 | ±0.30 | ±0.15 | |
| 38.1~<88.9 | ±0.40 | ±0.30 | |
| 88.9~<139.7 | ±0.9%D | ±0.40 | |
| 139.7~<203.2 | ±0.80 | ||
| 203.2~<219.1 | ±1.10 | ||
| 219.1~<323.9 | ±1.60 | ||
| ≥323.9 | ±0.5%D | ||
Nominal Wall Thinckness S | All Wall Thickness | +12.5%S -10%S | ±10%S |
Tolerance of Minimum Wall Thickness Unit:mm
| Production Method | Diamension | Tolerance | |
| Ordinary Level PA | High Level PC | ||
Hot Roll(Extrusion,Expansion)Steel Tube W-H | Smin<15 | +27.5% Smin 0 | +25% Smin 0
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| Smin≥15 | +35% Smin 0 | ||
Cold Drawn(Roll) Steel Tube W-C | All Wall Thickness | +22% S 0 | +20% S 0 |
Straightness:
The length of the steel tube should not be greater than 0.15% of the total length of the steel tube and no more than 12mm.
The bending degree of the steel pipe per meter should not be more than the following
—— WT ≤ 15mm, 1.5mm / m
—— WT > 15mm, 2.0mm / m
—— Thermal expansion pipe, 3.0mm / m
Cold rolled Seamless Stainless Steel Tubes 304 /316
