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EFW ERW Single Double Seam Welded Pipe
EFW ERW Single Double Seam Welded Pipe
EFW ERW Single Double Seam Welded Pipe
EFW ERW Single Double Seam Welded Pipe
EFW ERW Single Double Seam Welded Pipe
EFW ERW Single Double Seam Welded Pipe
Specifications
Brand Name :
Torich
Model Number :
JIS G3468
Certification :
ISO9001; ISO14001; TSI16949
Place of Origin :
zhejiang, China
MOQ :
1 ton
Payment Terms :
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :
60000 Ton per year
Delivery Time :
30-45days
Packaging Details :
In hexagonal bundles or wooden box
Product Name :
1/2" -48" Big Size Large Size EFW ERW Double Seam Welded Pipe
Tolerance :
±10%
Section Shape :
Round
Grade :
SUS 304,TP304 SUS304L TP304L SUS316 TP316 SUS316
Category :
Welded Steel Pipe
Brand :
Torich
Certificate :
ISO9001,ISO14001,TS16949
Place of origin :
China
Description

EFW ERW Single Double Seam Welded 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

Material

SUS 304,TP304 SUS304L TP304L SUS316 TP316 SUS316 TP316L.

Calculation Formula

0.02491

0.02482

0.02513

Application : Electric Power

Oil Refining

Nuclear Power

Drinking Water

Offshore Engineering &Shipbuilding

Natural Gas

Paper making

Construction

Description:

LARGE DIAMETER PIPE Available 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:

GB/T 12771

Delivery condition:

Heat treatment

Welded

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

Product Pictures

EFW ERW Single Double Seam Welded Pipe

EFW ERW Single Double Seam Welded Pipe

Company Introduction

EFW ERW Single Double Seam Welded Pipe

QUALITY CONTROL

1. Incoming Raw Material Inspection

2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects










Product tags

erw longitudinal welded pipe

,

erw efw welded pipe

,

erw welded pipe
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EFW ERW Single Double Seam Welded Pipe

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Product Detail
Brand Name :
Torich
Model Number :
JIS G3468
Certification :
ISO9001; ISO14001; TSI16949
Place of Origin :
zhejiang, China
MOQ :
1 ton
Payment Terms :
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Contact Supplier
video
EFW ERW Single Double Seam Welded Pipe
EFW ERW Single Double Seam Welded Pipe
EFW ERW Single Double Seam Welded Pipe

TORICH INTERNATIONAL LIMITED

Verified Supplier
11 Years
zhejiang, ningbo
Since 1997
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller
Main Products :
Precision Steel Tube, Seamless Steel Tube, Stainless Steel Tube
Total Annual :
25000000-30000000
Employee Number :
100~200
Certification Level :
Verified Supplier
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