Why us Our advantages. 1.Reasonable price with excellent quality
2.Abundant stock and prompt delivery
3.Rich exporting experience and sincere service
4.Reliable forwarder, 2-hour away from port.
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Product Description China supplier of seamless pipe ASTM A53 / A106 grade b schedule 40 20 inch carbon steel pipe as oil drill pipe
1. Outer diameter: 20 inch (508mm) 2. Wall thickness: Sch40 (15.09mm) 3. Materila: ASTM A53 gr.b, ASTM A106 gr.b 4. Standard: ASME B36.10, API 5L 5. Certificate: ISO 9001, SGS 6. Application: Oil drill pipe

Product Name	Seamless steel pipe
Process Form	Hot rolled, cold drawn, cold rolled
Size	1/2"-24" (21.3mm-610mm)
Wall tihckness	Sch10-Sch160, XXS (2mm-60mm)
Material	10#, 20#, 45#, 16Mn, A106 Gr.B, A53 Gr.B, ASTM A179, A315B, A335 P11, A335 P22, A335 P5 12CrMo, 15CrMo, 20CrMo, 42CrMo, 12Cr1Mov, 10CrMo910, STF A25
Standard	1. ASTM: ASTM A106GR.B; ASTM A53GR.A; ASTM A53GR.B;  ASTM A333;                     ASTM A334; ASTM A192; ASTM A210; 2. JIS: G3452; G3457; G3454; G3456; G3461; G3455; STPG38; STS42; STS49;                    STPT49 3. DIN: ST33; ST38; ST35; ST42; ST45; ST52.4; ST52; TT St35N; 10Ni14; 15Mo3 4. API: APL 5L; API 5CT; API LINE PIPE and so on
Certificate	Environmental Management System Certificate / Quality Systerm Certificate/ API / ISO / Other certificates
Surface Treatment	Manual polished / mechanical polished/ black paint on the face/ anti-rust oil/ galvanized/  caps on both ends
Application	1. structral pipe 2. oil and gas transportation 3. fluid pipe 4. line pipe 5. drill pipe 6. boiler pipe 7. other uses we can produce according to customer requirement

Detailed Images Material and standard of 20 inch seamless steel pipe. Seamless steel pipe is made from carbon steel ASTM A106 garde b, ASTM A53 grade b, API 5L grade b, Q195-Q345, 20#, etc .
We can make carbon steel pipes as ASME B36.10, API 5L, DIN, JIS, or as your requirement.
Pipe ends can be bevevled if you require.
Seamless carbon steel pipe painted black. After sand blasting and rust cleaning, carbon steel seamless pipe can be painted black, red, varnish...
Plastic pipe ends caps are necessary to protect beveled ends of seamless steel pipe.
Inspection on carbon steel pipe. Carbon steel pipes will be inspected strictly before delivery.
Third-party test is also accepted if our customer require.
Packing & Delivery Carbon steel pipe can be packed with PP / PE / Bundles  and caps on both ends, or according to customer's requirement. Packed in bundles. We advise you to ship carbon steel pipes in bundles  if you only need a few sizes with almost same length. Transported in bulk. We advise you to ship carbon steel pipes in bulk if you need many sizes with different length and in large quantity. Certifications Best seamless carbon steel pipe conforms to ISO 9001. All seamless carbon steel pipes will be inspected strictly. We assure you that our seamless carbon steel pipe conforms to ISO 9001and SGS. More Pipes Welded steel pipe. We also manufacture welded steel pipe (ERW pipe , EFW pipe, LSAW pipe) 24"-96" generally.
Some small or big diameter welded steel pipes can be made as customer's requirement.
Spiral steel pipe. We also manufacture spiral steel pipe(SSAW pipe) 24"-96" generally.

Some small or big diameter spiral steel pipes can be made as customer's requirement.
Galvanized steel pipe. We also manufacture galvaznied steel pipe(seamless galvanized steel pipe or welded galvanized steel pipe) 1/2"-96" generally.

Some small or big diameter galvanized steel pipes can be made as customer's requirement.
Customer Photos Our Company Qinhuangdao Zhongyan Machinery Co, Ltd.  head office is located in Qinhuangdao, a new national sanitary civilized harbor industry city. And our factory was built in Yanshan city. It has grown over the years in the distribution trading hot rolled seamless steel pipes. Nowadays, besides stocking and trading on pipes, it has developed as an extensive industrial manufacturing and market corporation. It accomplished a leadership in the research and production of hot rolled and cold drawn seamless, ERW, EFW, SAW, SSAW tubes in China.

Depending on good quality and competitive price, Qinhuagndao Zhongyan has achieved good reputation in the specific market. Our market extends to European, American, Korea, India, Japan, and South American. Being the far-sighted and with a development vision of internationalization, Qinhuagndao Zhongyan will always stick to the idea of mutual benefits. We warmly welcome domestic and overseas friends to give counsel of development..