China Factory Direct High Quality Large Diameter Dn800-1150 Spiral Steel Pipe For Penstocks
product presentation:
Steel pipes made from a single piece of metal without seams on the surface are called seamless steel pipes. According to the production method, seamless pipes are divided into hot rolled pipes, cold rolled pipes, cold drawn pipes, extruded pipes, and top pipes. According to the cross-sectional shape, seamless steel pipes are divided into two types: round and special-shaped. Special-shaped pipes have square, oval, triangle, hexagon, melon seed, star, and finned pipes. The maximum diameter is 650mm and the minimum diameter is 0.3mm. According to different purposes, there are thick-walled pipes and thin-walled pipes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, petrochemical cracking pipes, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors, and aviation.

Product Paramenters:
Product Name | Factory Direct High Quality Large Diameter Dn800 Spiral Steel Pipe for Penstocks |
Applicable Products | SSAW Steel Pipe, Linepipe, Pile Pipe |
Outer Diameter | 8 inch-120 inch(219mm-3048mm) |
Wall thickness | 4.5mm-25.4mm |
Length | Normally 12 meters, up to 60 meters |
Standard | API SPEC 5L, ASTM A53/A53M, ASTM A252, ASTM A36, EN10219, EN10296, EN10217, ISO3183, GB/T9711 |
Material | Gr.B, X42, X52, X60, X65, X70, X80, S235JR, S275J0, S275J2, S355J0, S355JR, S355K2, SS400, STK290, STK400, STK490, STK500, P235TR1, P265TR1, P235TR2, P265TR2 |
Section Shape | Round Hollow |
Technique | Double-sided submerged arc welding, spiral forming |
Ends | Plain end/Beveled, plastic or steel protective cap, welding flange |
Surface Treatment | 1. Varnish coating/oil 2. 3LPE, 3PP, FBE 3. Galvanized 4. According to clients requirement |
Packing | bare in loose, plastic packaging, hemp rope binding |
MOQ | 5 Metric tons |
Origin | deyangcity,sichuan,China |
Certificates | ISO9001, ISO14001, ISO18001, API 5L, API 5CT, CE, JIS |
Delivery Time | Usually within 10-45 days after receipt of down payment (Big Qty shall be further discussed) |
Product Application | Fluid, oil, petroleum, gas, water, steam, onshore, offshore, aboveground, underground, Structural |