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Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
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14” X ray test straight slit circumferential weld Circumferential welding of gas pipeline WELDED LARGE DIAMETER PIPE
Quick detail:
Single Seam: Outside Diameter 6-914mm Wall thickness 0.5-60mm
Double Seams:Outside Diameter 630-1524mm Wall thickness 2-80mm
Circular Seam:Outside Diameter 630 mm above Wall thickness 2-100
1/2 inch NB to 16 inch NB
Description:
Material
304/304L/304H(1.4301/1.4306/1.4948)
316L(1.4401/1.4404); 316Ti(1.4571); 321(1.4541); 309S
316/(1.4833); 310S(1.4845); 317L(1.4438)321H(1.4878); 347H (1.4550);
Duplex Stainless Steel: S32001, S32003, S31500, 2205(1.4462);
S32304,(1.4362);S31803,2507 (S32750),
S32760(1.4501);S32101(1.4162);
Super Austenitic Stainless Steel: 904L, S30432, S31042, 6Mo
(S31254, N08367)
Nickel Base Alloys: Alloy 20 (UNS N08020), Monel 200 (UNS
02200), Monel 400 (UNS N04400), Incoloy 800 (UNS N08800),
Incoloy 800H (UNS N08810), Incoloy 800HT (UNS N08811),
Incoloy 825 (UNS N08825), Inconel 600 (UNS N06600), 4J29,
4J36, GH3030, GH3039, C276 (UNS N10276)
Martensitic Stainless Steel: 410(1.4006), 410S(1.4000),
420(1.4021)
Ferritic Stainless Steel: 405(1.4002), 430(1.4016)
Large Diameter Longitudinal production process is simple, high production efficiency, low cost, and the strength of large diameter spiral welded pipe Longitudinal generally higher than, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of different pipe diameters, pipe rack, but the production efficiency compared with relatively low for pipe joints. Large diameter pipe used for large pipeline projects, water gas engineering, distribution network construction, municipal engineering, water supply and drainage works, construction of large steel structure, pile foundation and so on. The main testing methods of large diameter pipe to the main flaw detection. Using machine welding and manual welding method of combining.
316L Welded/ERW/Large Diameter Stainless Steel Pipes Production,Stock& Supply Range
Prodution name:
Stainless steel 316L Welded/ERW/Fabricated Piprs&Tubes
Standard Size 1/2 inch NB to 16 inch NB
Unit length from 6m to 18m depend on customer request.
Thickness is from 0.8-30mm.
Torich strength thin wall big diameter steel pipes and thick wall big diameter steel pipes.
Surface finishL Anodized,Brushed,Mill finished,Solution annealed and pickled ,Polished Gtit 120-600 mirror polished.
Standard: ASTM A 554 ASTM A312 ASTMA 358 ASTM A249 ASTM A 798 ASTM A790.
Material:
| Material | |
| Austenitic Stainless Steel | 310S, 309S,316L,321,304L,304 |
| Duplex | S,32750,S32760,S31803,S32205 |
| Nickel-Base 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 |
Production process:
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 Production Testing
Marking
Packing
Finished Product Warehousing
Shipping
| Standard | Item | Outside Diameter | Thickness | Roundness
| Straightness | Length | ||
| GB/T 12771 | Heat treatment | High Class | General | |||||
| ＜50 | ±0.20 | ±0.3 | ＞0.5-1.0,±0.15 ＞1.0-2.0 ±0.20 ＞2.0-4.0 ±0.3 ±10% | Not exceed the OD tolerance t/D≤3% ≤1.5%D | OD ≤ 108 mm,≤1.5mm/m ＞ 108-325mm ≤2.0mm/m ＞ 325mm ≤2.5mm/m
| 3000-9000mm, Length tolerance is 0,+20mm
| ||
| ≥40-＜65 | ±0.30 | ±0.40 | ||||||
| ≥65-＜90 | ±0.40 | ±0.50 | ||||||
| ≥90-＜168.3 | ±0.80 | ±1.0 | ||||||
| ＞168.3-＜325 | ±0.75% D | ±1% D | ||||||
| ≥325-＜610 | ±0.6% D | ±1% D | ||||||
| ＞610 | ±0.6% D | ±0.7% or± 10 Chose min value | ||||||
| Welded | All sizes | ±0.5% D or ±0.20 chose the bigger one | ±0.75% D or ±0.30 chose the bigger one | |||||
Related Keywords: SS 316L Welded Pipe, SS 316L Welded Pipe, SS 316L ERW Pipe, SS 316L EFW Pipe, Stainless Steel 316L ERW Pipe, Stainless Steel 316L EFW Pipe, Stainless Steel 316L Welded Pipe, 316L Welded Pipe, ASTM A312 Stainless Steel 316L Welded Pipes, ASTM A358 Stainless Steel 316L Welded Pipes
