TORICH Large Diameter Grade 304 Stainless Steel Tube Industrial Pipe
Material Available
Material | Grade |
Austenitic Stainless Steel | 310S, 309S, 316L, 321, 304, 304L |
Duplex | S32750, S32760, S31803, S32205 |
Nickel-Based Alloy | N08904, N06600, N08825 |
Copper Nickel Alloy | C70600, C70620 |
Ferrite | 430, 409L |
Other Special Material | 254SMO, 253MA |
High-Temp Material | 310S, 309S, S30815 |
Titanium Alloys | TA2, TA10, TC4 |
Chemical Composition
Chemical composition | |||||
Grade | C | Si | Mn | Cr | Ni |
304 | ≤0.07 | ≤1.00 | ≤2.0 | 18.00~20.00 | 8.00~10.50 |
304L | ≤0.030 | ≤1.00 | ≤2.0 | 18.00~20.00 | 9.00~13.00 |
310S | ≤0.08 | ≤1.00 | ≤2.0 | 24.00~26.00 | 19.00~22.00 |
316 | ≤0.08 | ≤1.00 | ≤2.0 | 16.00~18.00 | 10.00~14.00 |
316L | ≤0.03 | ≤1.00 | ≤2.0 | 16.00~18.00 | 12.00~15.00 |
321 | ≤0.08 | ≤1.00 | ≤2.0 | 17.00~19.00 | 9.00~13.00 |
904L | ≤0.02 | ≤1.00 | ≤2.0 | 19.00~23.00 | 23.00~28.00 |
2205 | ≤0.03 | ≤1.00 | ≤2.0 | 22.00~23.00 | 4.5~6.5 |
2507 | ≤0.03 | ≤0.08 | ≤1.20 | 24.00~26.00 | 6.00~8.00 |
Size
Seam Type | OD | WT |
Single Seam | 6-914mm | 0.5-60mm |
Double Seam | 630-1524mm | 2-80mm |
Circular Seam | over 630mm | 2-100mm |
Density
Grade | ρ (kg/dm³) | Calculation Formula | |
0Cr18Ni9 (06Cr19Ni10) SUS304 TP304 | 00Cr19Ni10 (022Cr19Ni10) SUS304L TP304L | 7.93 7.9 | W=0.02491 t(D-t) W=0.02482 t(D-t) |
0Cr17Ni12Mo2 SUS316 TP316 | 00Cr17Ni14Mo2 SUS316L TP316L | 8.0 | W=0.02513 t(D-t) |
Production process of JCOE large diameter straight seam welded pipe:
Steel Coil→ Re-test→ Flat Open and Transverse Shear→ Shear (Longitudinal Shear)→ Edge Planning and Milling→
Butt Welding of Plate→ Forming (Bending/Reeling)→ End Squaring&Tack Welding→ Welding Seam Cleaning→
Automatic Welding→ Radiographic Test→ Solution Treatment→ Rounding→ Straightening→ End Facing Treatment→
Hydrostatic Test→ Pickling Passivation→ Rinse and Dry→ Radiographic Test→ Finished Product Testing→ Marking→
Packing→ Finished Product Warehousing→ Shipping
Application:
Electric Power, Oil Refining, Nuclear Power, Drinking Water, Offshore Engineering&Shipbuilding, Natural Gas,
Paper Making, Construction
Characteristic:
Good concentricity
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
TORICH QUALITY ASSURANCE
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