| MOQ: | negotiable | 
| Price: | negotiable | 
Cheap price hollow structural welding scaffolding hot dip galvanized steel pipes
Size OD 13.2-166.1mm WT:1.8 -5.4 other size is also available.
 Application:For ordinary service.
 hot dip galvanized steel pipes
 Process of Manufacture:Tubes may be either welded or seamless
 Material: Tubes shall be manufactured from steel which show,Not more than 0.045 percent of sulfur and not more than 0.045 percent of phosphorus .Carbon equivalent as calculated from the following equation shall not exceed 0.4
Carbon equivalent =C+Mn/6
 Lengths or strips cut from selected tubes and tested in accordance with AS 1391 shall show-
 (a)minimum yield strength of 195Mpa
 (b)a tensile strength of between 320Mpa and 460Mpa
 (c)an elongation of not less than 20percent on a gauge length of 5.65 √S0 Where S0 is the original cross-section area of the test piece.
Related standard :
 AS1355 Glossary of terms used in connection with water and sanitary plumbing and drainage installations
 AS 1391 Methods for tensile testing of metals
 AS 1650 Galvanized coating
 AS 1722 Pipe threads of whitworth form
 AS 1722.1 Part 1:Sealing pipe threads
 AS 1835 Tubes for pressure purpose-Seamless steel
 AS 1836 Tubes for pressure purposes-Welded steel
 AS 2084 Non-destructive testing-Eddy current testing of metal tubes
 BS 65 Carbon steel tubes suitable for screwing in accordance with ISO 7/1
 
 Lengths
 Standard lengths When so ordered, tubes shall be supplied in standard lengths of 50±0.08mm
 Exact lengths Where exact lengths are specified, either for threaded tubes or for plain end tubes, each tube shall be within +8,0mm of the specified length.
 Galvanizing
 Tubes ordered galvanized before threading
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 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
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 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 | 
Cheap price hollow structural welding scaffolding hot dip galvanized steel pipes
Size OD 13.2-166.1mm WT:1.8 -5.4 other size is also available.
 Application:For ordinary service.
 hot dip galvanized steel pipes
 Process of Manufacture:Tubes may be either welded or seamless
 Material: Tubes shall be manufactured from steel which show,Not more than 0.045 percent of sulfur and not more than 0.045 percent of phosphorus .Carbon equivalent as calculated from the following equation shall not exceed 0.4
Carbon equivalent =C+Mn/6
 Lengths or strips cut from selected tubes and tested in accordance with AS 1391 shall show-
 (a)minimum yield strength of 195Mpa
 (b)a tensile strength of between 320Mpa and 460Mpa
 (c)an elongation of not less than 20percent on a gauge length of 5.65 √S0 Where S0 is the original cross-section area of the test piece.
Related standard :
 AS1355 Glossary of terms used in connection with water and sanitary plumbing and drainage installations
 AS 1391 Methods for tensile testing of metals
 AS 1650 Galvanized coating
 AS 1722 Pipe threads of whitworth form
 AS 1722.1 Part 1:Sealing pipe threads
 AS 1835 Tubes for pressure purpose-Seamless steel
 AS 1836 Tubes for pressure purposes-Welded steel
 AS 2084 Non-destructive testing-Eddy current testing of metal tubes
 BS 65 Carbon steel tubes suitable for screwing in accordance with ISO 7/1
 
 Lengths
 Standard lengths When so ordered, tubes shall be supplied in standard lengths of 50±0.08mm
 Exact lengths Where exact lengths are specified, either for threaded tubes or for plain end tubes, each tube shall be within +8,0mm of the specified length.
 Galvanizing
 Tubes ordered galvanized before threading
![]()
 
 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!