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Qingdao Sangao Metal Structure Co., Ltd.

Steel Pipe, Stainless Steel, Steel manufacturer / supplier in China, offering Sangao Large Diameter Seamless Welded Steel Pipes, Sangao Stainless Steel Seamless Tube for Construction, Premium Quality Seamless Stainless Steel Ss Tube and so on.

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Supplier Homepage Product Steel Pipe & Tube Sangao Large Diameter Seamless Welded Steel Pipes

Sangao Large Diameter Seamless Welded Steel Pipes

FOB Price: US $800 / Ton
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $800/ Ton
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Production Capacity: 50000tons/Year
Transport Package: Standard Export Package
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: sg-221
  • Technique: Cold Drawn
  • Surface Treatment: Black
  • Section Shape: Round
  • Trademark: sangao
  • Origin: Qingdao City, Shandong Province, China
  • Type: Welded
  • Material: Carbon Steel
  • Usage: Pipeline Transport, Special Purpose, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Construction & Decoration
  • Thickness: 10mm-150mm
  • Specification: ISO, SGS
Product Description
Product Standards

Pipe commonly used material for: Q235A, Q235C, Q235B, 16Mn, 20 #, Q345, L245, L290, X42, X46, X60, X80, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb like.

Welded steel pipe blank is used in steel or steel, because of its different welding process is divided into the furnace pipe, welding (electric resistance welded) pipes and automatic arc welded pipe. Because of the different forms of welding pipe is divided into two and spiral welded pipe.

Production Process

Longitudinal production process is simple, high production efficiency, low cost, rapid development. Spiral Welded Longitudinal generally higher than high, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of different pipe diameters. However, compared with the same length of straight seam pipe weld length of 30 to 100%, and lower production rate.

Diameter larger or thicker pipe, usually made of steel billets directly, but only a small thin-walled pipe welded steel welded directly through it. Then after a simple polished, brushed on it

Pipe Process

Raw material unwinding - flat - cut and weld ends - Looper - Forming - Welding - both inside and outside bead removal - pre correction - induction heat treatment - sizing and straightening - Eddy Current Testing - off - pressure check - pickling - Final inspection (strictly) - Packaging - shipping.

Feature
Longitudinal production process is simple, high production efficiency, low cost, rapid development. Spiral Welded Longitudinal generally higher than high, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of different pipe diameters. However, compared with the same length of straight seam pipe weld length of 30 to 100%, and lower production rate.

Applications

Our products are widely used in water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction, is one of the products of China's 20 key development. For the transport of liquids: Water supply, drainage. For gas transportation: Gas, steam, liquefied petroleum gas. For structural purposes: As piling pipe, as the bridge; Docks, roads, pipes and other building structures.

               size
Outer Diameter8-600mm
Wall Thickness1-100mm
Length1-12m
         
 
 
 
 
 
Standard
 
GB/T 8162-2008, material #10, #20, #45, 20Mn,25Mn,Q235,Q275, , 30Cr, 40Cr,35CrMo, 42CrMo
GB/T 8163-2008 mateiral #10, #20, Q345
ASTM A53/A53M, material A53 GR.B
API 5L, maerail A,B,X42,X46,X52,X56,X60
API 5CT, material J55,N80,P110
ASTM A519, material 1010,1045,4130,4140 etc
ASTM A 179/A179M, material A179
ASTM A 192/A192M, material A192
DIN1629, material ST37.0,ST44.0,ST52.0
DIN17175, material ST35.8,ST45.8 etc
DIN2391, material ST35,ST45,ST52
EN10305, materail E215,E235,E355
 
 
 
 Package
 1.  Bundle packing.
 2.  Bevelled end or plain end or warnished as per buyer's requestments.
 3.  Marking: as per customer's requests.
 4.  Painting varnish coating on the pipe.
 5.  Plastic caps at ends.
Delivery Time  15 to 20 days or as clients reqestments
Trade termsEXW,FOB,CIF,CFR
 
 

Business Terms
Packing
i. Common Standard Export-sea Packing : Each bundle is fixed at lest three times strips , wrapped with durable PVC material .
ii. Special Packing : Covered with film and packed in wooden box .
iii.According to customer's requirement.
paymenterms
30% advanced T/T payment, the balance before shipment or against copy of B/L
shipmentterm 
The goods should be loaded with 20ft/40ft con
tainer or LCL.
Delivery time
2 or 4 weeks after deposit
Quality Assurance
Mill Test Certificate is provided, Third Party Inspection is acceptable , Free Sample is available for Testing and welcome to our factory for personal inspection .

Why Choose Qingdao Sangao Metal Company?
1. Factory direct sale.
2. Industry and trade integration business.
3. 15 years experience.
4. Various designs.
5. ODM, OEM acceptable.
6. Flexible payment.
7. Fast, accurate quotes.
8. Our good service.  
9. Technical support by e-mail.
10. Calling service.
11. Provide maintenance instruction video.
Our Mission
Qingdao Sangao Company is committed to provide premium quality product and high quality service for the customers.
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