Double-faced Spiral Arc Merged Welded Steel Pipe
159--3020mm in Theory
4--25mm in Theory
Usually 6~12 Meters, 20 Meters Max in Theory
SY/T5037 SY/T5040 GB/T9711 API5L EN10208 ASTM A252 JISA5525
Grade A,Grade B,X42,X46,X52,X56,X60,X65,X70
Used For Water, Sewage, Gas, Stream, Combustible Fluids(Petroleum and Gas)
Beveled (Can be Protected By Plastic Caps or Steel Rings According to Your Requirements)Also We Can Weld Flanges on the Pipe Ends Plain Ends
Bared Or Paint With Oil, Bitumen,1-3 layer PE
With Chemical Composition and Mechanical Properties Testing; Hydrostatic Test,
Dimensional and Visual Inspection, Also With Nondestructive Inspection
Hot Rolled and SSAW or DSAW
Package With Steel Strip When O.D≤273MM, Otherwise In Bulk.
Date of Delivery
According to The Specifications And the Quantities,
Time Begin When We confirm the Date of the Earnest or L/C
Method of Payment
T/T L/C West Union
Method Of Delivery
Terms According To the <INCOTERMS 2000> for International Trading,
Production process editor
(1) Industrial Black Iron Steel Pipe raw materials are strip steel coil, welding wire and flux.Before being put into operation, it must pass strict physical and chemical inspection.
(2) Industrial Black Iron Steel Pipe single wire or double wire submerged arc welding shall be adopted for butt joint of strip head and tail, and automatic submerged arc welding shall be adopted for repair welding after rolled into steel tubes.
(3) Industrial Black Iron Steel Pipe before forming, the strip is straightened, cut and planed, and the surface is cleaned, transported and bent.
(4) Industrial Black Iron Steel Pipe the electric contact pressure gauge is used to control the pressure of pressing down the oil cylinder on both sides of the conveyor to ensure the smooth conveying of the strip steel.
(5) Industrial Black Iron Steel Pipe adopt external control or internal control roller forming.(6) the welding seam clearance control device is adopted to ensure that the welding seam clearance meets the welding requirements. The pipe diameter, amount of offset and the welding seam clearance are strictly controlled.
Q: Are you mercantilism company or manufacturer ?
A: we have a tendency to are manufacturing plant
Q: however long is your delivery time?
A: usually it's 5-10 days if the products are available. or it's 15-20 days if the products don't seem to be available, it's in line with amount.
Q: does one offer samples ? is it free or further ?
A: Yes, we have a tendency to may provide the sample for gratis charge however don't pay the price of freight.
Q: what's your terms of payment ?
A: Payment=1000USD, half-hour T/T earlier ,balance before shippment.