 
            | MOQ: | negotiable | 
| Price: | negotiable | 
Trade assurance hollow structural mild price welded round tube for sale
EN10305-2 Cold Drawn Welded Precision Steel Tubes DOM tubing E155,E195,E235,E275,E355 +C +LC +SR +A +N
DOM is a process that is applied to tubing after it is initially constructed.It is refferred to as Seamless ,It can be said that do seamless process method on ERW tubes,So the tubes will have a high strength ,high quality .Material form E155 E195 E235 E275 E355 1020 1026 and so on .DOM tubing is commonly use in auto parts .
welded round tube
Production Process: 
 Cold rolling by Cold pilger machine and Cold rolling machine
 Size: 20-350mm
 1. Standard: 
 EN10305-2 Cold Drawn Precision Seamless Steel Pipes
 2. Steel Grade: 
 E155,E195,E235,E275,E355, other materials upon agreement with customers.
 3. Production method: 
 Cold drawn on the welded steel tubes, to reach high accuracy on the OD and WT tolerance
 4. Size range: 
 O.D.:20-350mm W.T.:1-35mm L:max12000mm
 5. Packing: 
 In Hexagonal Bundles, with anti-rust oil protection, with seaworthy packing 
 6. Deliver condition:
 1). +C No heat treatment after the final cold drawing process
 2). +LC After the final heat treatment there is a suitable drawing pass
 3). +SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
 4). +A After the final cold drawing process the tubes are annealed in a controlled atmosphere
 5). +N After the final cold drawing operation the tubes are normalized in a controlled atmosphere



 
 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.
Packing Details : In bundles or in wooden boxes packaging
 Delivery Details : 30-60days

 
 
 
 
 
 
 
 
 What products we do?
 ------- Invent and produce various Precision Steel Pipes
 Our steel pipes cover the following ranges:
 Seamless Precision Steel Pipes
 Welded Precision Steel Pipes, with DOM production
 Seamless Heat Exchanger Steel Pipe
 Seamless Boiler Steel Pipes
 Seamless Structural Steel Pipes
 Seamless Mechanical Steel Pipes
 Seamless Alloy Steel Tubes & Pipes
 Seamless Stainless Steel tubes
 Welded Stainless Steel Tubes
 Seamless Stainless Steel Tubes & Pipes
 Welded Stainless Steel Tubes & Pipes
 Seamless Carbon Steel Tubes & Pipes
 Nickel Alloy Steel Tubes & Pipes
 Products Application:
 Oil Cylinders
 Air Cylinder, 
 Automotive Cylinder Liners
 Boilers, Pressure Vessels
 Shell & Heat Exchangers
 Jack Lifting
 Telescopic Systems
 Pneumatic Cylinders
 Agricultural Machineries
 Who We are ?
 -------A professional steel pipes materials inventor, manufacturer and solution provider
 Haiyan Sanxin Steel Pipe Co., Ltd is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which holds the factories of Seamless Steel Tubes with Carbon and Alloy Steel Grade, Welded Precision Steel Tubes,DOM Steel Tubes, Seamless & Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.
 Our factory was established since 1997. The factories’ technicians are of great engineering experience in steel pipe industry for more than 20 years, which are in great command of production technology for Cold Drawing and Cold Rolling. So we have strong technician team and manufacturing capability.
 
 What is your Guarantee?
 1.SO9001:2008 and TS16949 certification, SGS, BV, TUV or other third party inspection is available.
 2.High quality with competitive price.
 3.Advanced technology, experienced engineer, ISO quality system for quality assurance and traceability.
 Do you have agent or distributor in our country?
 1.We are recruiting area agent and distributor all over the world, welcome to send us your mail or call us for detail discussion.
 How is your production capability?
 1.2000 tons monthly production capacity, 5000 tons monthly trading capability
 2.Prompt and Timely shipment
 How to get the sample?
 1.You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
 2.Sample charges will be refunded when order is placed.
 What is your Payment Term?
 1.T/T: 30% deposit in advance, the balance 70% paid before shipment
 2.30% down payment, the balance 70% paid against L/C at sight
 3.Upon negotiation
 Who are your customers?
 1.Stockists, Distributors,Wholesalors,Agents, Traders, End Users, etc
 How long will you react on our requirement?
 1.Your requirement would be treated within 24 hours on weekdays. Quotations would be sent upon technical details confirmed by customer!
 Any more questions about your doubts, please feel free to send us your emails or call!
 
          | MOQ: | negotiable | 
| Price: | negotiable | 
Trade assurance hollow structural mild price welded round tube for sale
EN10305-2 Cold Drawn Welded Precision Steel Tubes DOM tubing E155,E195,E235,E275,E355 +C +LC +SR +A +N
DOM is a process that is applied to tubing after it is initially constructed.It is refferred to as Seamless ,It can be said that do seamless process method on ERW tubes,So the tubes will have a high strength ,high quality .Material form E155 E195 E235 E275 E355 1020 1026 and so on .DOM tubing is commonly use in auto parts .
welded round tube
Production Process: 
 Cold rolling by Cold pilger machine and Cold rolling machine
 Size: 20-350mm
 1. Standard: 
 EN10305-2 Cold Drawn Precision Seamless Steel Pipes
 2. Steel Grade: 
 E155,E195,E235,E275,E355, other materials upon agreement with customers.
 3. Production method: 
 Cold drawn on the welded steel tubes, to reach high accuracy on the OD and WT tolerance
 4. Size range: 
 O.D.:20-350mm W.T.:1-35mm L:max12000mm
 5. Packing: 
 In Hexagonal Bundles, with anti-rust oil protection, with seaworthy packing 
 6. Deliver condition:
 1). +C No heat treatment after the final cold drawing process
 2). +LC After the final heat treatment there is a suitable drawing pass
 3). +SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
 4). +A After the final cold drawing process the tubes are annealed in a controlled atmosphere
 5). +N After the final cold drawing operation the tubes are normalized in a controlled atmosphere



 
 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.
Packing Details : In bundles or in wooden boxes packaging
 Delivery Details : 30-60days

 
 
 
 
 
 
 
 
 What products we do?
 ------- Invent and produce various Precision Steel Pipes
 Our steel pipes cover the following ranges:
 Seamless Precision Steel Pipes
 Welded Precision Steel Pipes, with DOM production
 Seamless Heat Exchanger Steel Pipe
 Seamless Boiler Steel Pipes
 Seamless Structural Steel Pipes
 Seamless Mechanical Steel Pipes
 Seamless Alloy Steel Tubes & Pipes
 Seamless Stainless Steel tubes
 Welded Stainless Steel Tubes
 Seamless Stainless Steel Tubes & Pipes
 Welded Stainless Steel Tubes & Pipes
 Seamless Carbon Steel Tubes & Pipes
 Nickel Alloy Steel Tubes & Pipes
 Products Application:
 Oil Cylinders
 Air Cylinder, 
 Automotive Cylinder Liners
 Boilers, Pressure Vessels
 Shell & Heat Exchangers
 Jack Lifting
 Telescopic Systems
 Pneumatic Cylinders
 Agricultural Machineries
 Who We are ?
 -------A professional steel pipes materials inventor, manufacturer and solution provider
 Haiyan Sanxin Steel Pipe Co., Ltd is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which holds the factories of Seamless Steel Tubes with Carbon and Alloy Steel Grade, Welded Precision Steel Tubes,DOM Steel Tubes, Seamless & Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.
 Our factory was established since 1997. The factories’ technicians are of great engineering experience in steel pipe industry for more than 20 years, which are in great command of production technology for Cold Drawing and Cold Rolling. So we have strong technician team and manufacturing capability.
 
 What is your Guarantee?
 1.SO9001:2008 and TS16949 certification, SGS, BV, TUV or other third party inspection is available.
 2.High quality with competitive price.
 3.Advanced technology, experienced engineer, ISO quality system for quality assurance and traceability.
 Do you have agent or distributor in our country?
 1.We are recruiting area agent and distributor all over the world, welcome to send us your mail or call us for detail discussion.
 How is your production capability?
 1.2000 tons monthly production capacity, 5000 tons monthly trading capability
 2.Prompt and Timely shipment
 How to get the sample?
 1.You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
 2.Sample charges will be refunded when order is placed.
 What is your Payment Term?
 1.T/T: 30% deposit in advance, the balance 70% paid before shipment
 2.30% down payment, the balance 70% paid against L/C at sight
 3.Upon negotiation
 Who are your customers?
 1.Stockists, Distributors,Wholesalors,Agents, Traders, End Users, etc
 How long will you react on our requirement?
 1.Your requirement would be treated within 24 hours on weekdays. Quotations would be sent upon technical details confirmed by customer!
 Any more questions about your doubts, please feel free to send us your emails or call!