Quick Detail:

1 Standard: ASTM A790/A789 PICKLED AND ANEANLED

2 Material: S31803/S31500/S32750 etc

3 OD: 6MM---710MM

Thickness: 2.5mm---50mm

4 Certificate: PED, ISO, GB, GOST

5 Producing method: cold drawn and cold rolled

We BWSS offer an extensive range of Seamless Pipes to our clients. We also deal with super duplex pipes. Our stainless steel seamless pipe was width used in Mining, Energy, Petrochemical, Chemical Industry, Food plant, Paper plant, Gas and Fluid Industry etc

Large Diameter Super Duplex Stainless Steel Pipe UNS S31500 ASTM A789, A790

Specification

High resistance to stress corrosion cracking in chloride-bearing environments
Good resistance to general corrosion and pitting

UNS31500

UNS 31500 is a duplex (austenitic-ferritic) stainless steel characterized by the following properties:

• High resistance to stress corrosion cracking (SCC) in chloride-bearing environments
• Good resistance to general corrosion and pitting
• High mechanical strength – roughly twice the proof strength of austenitic grades
• Good resistance to erosion corrosion and corrosion fatigue
• Physical properties that present design advantages
• Good weldability

Standards

• UNS S31500
• EN number 1.4424
• EN name X2CrNiMoSi18-5-3
• W.Nr. 1.4417
• DIN X 2 CrNiMoSi 19 5
• SS 2376
• AFNOR Z2 CND 18.05.03

Stainless Steel Pipe:

1.Material: S31803/S31500/S32750 ETC
2.O.D: 6mm-710mm , Thickness:2.5-50mm

3.A999/A999M: Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test, the Thpe of test to be used shall be at the option of the mfg, unless otherwise specified in the PO.

4. The Pipe lengths : Unless otherwise agreed upon, all size from NPS 1/8” TO AND INCLUDING nps 8 are available in a length up to 24ft with the permitted range of 15 to 24 ft. Short length are acceptable and the number and min, length shall be agreed upon between mfg and purchaser.

5. The finished pipe shall be reasonably straight and shall have workmanlike finish, Removal of imperfections by grinding is permitted, provided the W.T are not decreased to the lenss than the permitted in Section 9 of Specification A999/A999M

6. Butt Weld End:  According to ANSI B 16.25
7. Pipe Marking: Specified in A999/999M, include “Logo+Standard+SIZE+Heat No.+Lot No.+H.T/E.T/U.T”

8. Packing: Each Pipe end is protected by Plastic cap. Then packed by Anti-rust steel strip, The outside of the bundle is plastic woven bag, or Plastic film.

9. Packing Mark:  SIZE + STEEL GRADE+ QTY OF PIECE/WEIGHT/METRE.

10.MTC:  BWSS Official Original MTC paper will be supplied for each order.

We can dealing with a wide range material as following:

Material Grade:

OUR BWSS PRODUCTION WORKSHOP

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Specialized production workshop, professional production staff.
Shop the '7 s' principle
The standardized production, the comprehensive treatment

BWSS CHARISMA :

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Keep Challenging and Innovation.
Advance manufacturing instruments.
Create perfect quality.
Take strict testing as guarantee, upgrade grade as object.
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