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ASTM A570 Gr.A Structural Steel Pipe.Structural seamless steel tubes is a kind of steel seamless tube divided into different uses. Structural steel pipes include hot-rolled steel pipes and welded steel tubes. Seamless steel pipes for structures are divided into hot rolling (extrusion, expansion) and cold drawing (rolling). The outer diameter of hot rolled steel pipe is 32-630mm and the wall thickness is 2.5-75mm; The outer diameter of cold drawn steel pipe is 5-200mm and the wall thickness is 2.5-12mm. Welded steel pipe is welded from steel plate or steel strip after crimping and forming. It is divided into straight seam electric welded steel tube and spiral welded steel pipe. The outer diameter of straight seam electric welding steel tube is 5-508mm and the wall thickness is 0.5-12.7mm. Welded steel pipe for low-pressure fluid transmission is also known as general welded pipe, commonly known as black pipe.
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Product Name |
ASTM A570 Gr.A Structural Steel Pipe |
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Standard |
ASTM A570 Gr.A |
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Material |
GB-Q235A/B/C/D |
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Technology |
Hot Rolled ,Cold Rolled,Cold Drawn,Hot Expended |
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Chemical Composition |
C:≤0.22% Si:0.12-0.3% Mn:0.3-0.8% P:≤0.05% S:≤0.05%
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Mechanical Property |
Yield Strength (MPa)≥:245
Tensile Strength (MPa):400-510 Elongation %≥:21
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Tolerance |
Control with in the standard, OD:+/-1%, WT:+/-5% |
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Application |
Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service，Boiler Pipe,Gas and oil pipe, liquid linepipe, casing pipe
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Payment Terms |
1.FOB 30%T/T,70% Before shipment 2.CIF 30% Pre-payment , Balance must be paid before shipment 3.Irrevocable 100% L/C at sight |
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Third Party Inspection |
SGS ,BV, MTC |
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Advantages |
1.Short delivery time 2.Quality assurance 3.Competitive price, 4.Free Sample |
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Delivery Time |
Within 25 days after receipt of advance payment |
Sanitary mirror tube process:
Tube blank→inspection→peeling→inspection→heating→piercing→pickling→grinding→lubrication and air drying→welding head→cold drawing→solution treatment→pickling→pickling passivation→inspection→cold rolling→oil removal→cutting head → air drying → inner polishing → outer polishing → inspection → identification → finished product packaging
Industrial tube process
Tube blank→inspection→peeling→inspection→heating→piercing→pickling→grinding→lubrication and air drying→welding head→cold drawing→solution treatment→pickling→pickling passivation→inspection
Structural seamless steel pipes are mainly used to manufacture pipes, containers, equipment, pipe fittings and mechanical structures, etc. The details are as follows:
Construction: Hall structures, sea trestle, airport structures, docks, security door frames, garage doors, reinforced steel lined doors and windows, interior partition walls, cable tray structures and highway safety guards, railings, renovations, residential, decorative plumbing
Auto parts: car and bus manufacturing, transportation
Agriculture: Agricultural Equipment
Industries: Machinery, Solar Mounts, Offshore Oil Fields, Mining Equipment, Electromechanical Hardware, Engineering, Mining, Heavy and Resources, Process Engineering, Material Handling, Mechanical Parts
Transportation: Pedestrian railings, guardrails, plaza structures, guiding signs, road equipment, fences
Logistics warehousing: supermarket shelves, furniture, school supplies
Container Size:20ft/40ft Max loading length:5.8m,20ft/6-12m,40ft Maximum loading weight:25 Ton
Q: Are you a manufacturer?
A: Yes , we are a seamless steel pipe manufacturer, We have own factory, which is located in Shandong,China. We have a leading power in producing and exporting hot rolled seamless steel pipe,cold rolled seamless steel pipe,cold drawn seamless steel pipe and alloy seamless steel pipe etc. We promise that we are what you are looking for.
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we can accept BV, SGS third inspection .
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-35 days if the goods are not in stock, it is according to quantity.
Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So we can give the best offer.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
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