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Duplex Stainless Steel Tubes

Astm A789 UNS S31803 Super Duplex Pipes

Brand: TORICH

Packaging: Bundle packing by Iron Strips.

Supply Ability: 500 Ton per month

Min. Order: 2 Ton

Certificate: ISO9001

A312 A790 Duplex Stainless Steel Tube Description Duplex stainless steel pipe,Duplex stainless steel tube, seamless Duplex stainless steel pipe,welded Duplex stainless steel pipe, Duplex stainless steel pipe, Duplex stainless steel tube Technique...
2205 welded super duplex stainless steel tubes

Brand: Torich

Packaging: In hexagonal bundles or wooden box

Supply Ability: 50000 ton per year

Min. Order: 3 Ton

Certificate: ISO9001, ISO14001, TSI16949

2205 welded super duplex stainless steel tubes Applications: For chemical, boiler industry, constructions Technique: Cold worked and hot worked Alloy or not: Alloy Secondary or not: Non-Secondary Steel Grade/Steel Material: Size range:...
15CrMo asm sa789 duplex stainless steel tube

Brand: Torich

Packaging: In hexagonal bundles or wooden box

Supply Ability: 50000 ton per year

Min. Order: 3 Ton

Certificate: ISO9001, ISO14001, TSI16949

15CrMo asm sa789 duplex stainless steel tube Applications: For chemical, boiler industry, constructions Technique: Cold worked and hot worked Alloy or not: Alloy Secondary or not: Non-Secondary Steel Grade/Steel Material: Size range: Characteristic:...
Super Duplex 2507 Duplex Stainless Steel coils

Brand: Torich

Packaging: In hexagonal bundles or wooden box

Supply Ability: 50000 ton per year

Min. Order: 3 Ton

Certificate: ISO9001, ISO14001, TSI16949

Super Duplex 2507 Duplex Stainless Steel coils Applications: For chemical , boiler industry,heat-exchangers Technique: Cold worked and hot worked Alloy or not: Alloy Secondary or not: Non-Secondary Steel Grade/Steel Material: Size range:...
Torich Dn200 Astm 790 2507 / 2205 / 31803 / 32750 Duplex Stainless Steel Pipe

Unit Price: USD 1150 - 1350 / Ton

Min.Order Unit Price
2 Ton USD 1150 / Ton
2 Ton USD 1350 / Ton

Brand: Torich

Packaging: Packed in bundles in boxes

Supply Ability: 25 tons

Min. Order: 2 Ton

Certificate: ISO,CE

Torich Dn200 Astm 790 2507 / 2205 / 31803 / 32750 Duplex Stainless Steel Pipe Type: Stainless, Grade: TP304,TP304L, TP316,TP316L, TP321 1.4301 Technical: welded Usage: Petroleum&Chemical industry Size: OD: 6.25-254mm WT: 0.5-12mm Key words:...
Torich Food Grade Duplex Stainless Steel Pipe Tube Price For Oil and Chemical

Unit Price: USD 1150 - 1350 / Ton

Min.Order Unit Price
2 Ton USD 1150 / Ton
2 Ton USD 1350 / Ton

Brand: Torich

Packaging: Packed in bundles in boxes

Supply Ability: 25 tons

Min. Order: 2 Ton

Certificate: ISO,CE

Torich Food Grade Duplex Stainless Steel Pipe Tube Price For Oil and Chemical Type: Stainless, Grade: TP304,TP304L, TP316,TP316L, TP321 1.4301 Technical: welded Usage: Petroleum&Chemical industry Size: OD: 6.25-254mm WT: 0.5-12mm Key words: Food...
Torich 304 304L 316L Duplex 2205 2507 Welded Stainless Steel Tube Pipe

Unit Price: USD 1150 - 1350 / Ton

Min.Order Unit Price
2 Ton USD 1150 / Ton
2 Ton USD 1350 / Ton

Brand: Torich

Packaging: Packed in bundles in boxes

Supply Ability: 25 tons

Min. Order: 2 Ton

Certificate: ISO,CE

Torich 304 304L 316L Duplex 2205 2507 Welded Stainless Steel Tube Pipe Type: Stainless, Grade: TP304,TP304L, TP316,TP316L, TP321 1.4301 Technical: welded Usage: Petroleum&Chemical industry Size: OD: 6.25-254mm WT: 0.5-12mm Key words: Duplex 2205...
Torich Duplex Ss316 Stainless Steel Pipe 304 304L 316L 316 Seamless Tube

Unit Price: USD 1150 - 1350 / Ton

Min.Order Unit Price
2 Ton USD 1150 / Ton
2 Ton USD 1350 / Ton

Brand: Torich

Packaging: Packed in bundles in boxes

Supply Ability: 25 tons

Min. Order: 2 Ton

Certificate: ISO,CE

Torich Duplex Ss316 Stainless Steel Pipe 304 304L 316L 316 Seamless Tube Type: Stainless, seamless Grade: TP304,TP304L, TP316,TP316L, TP321 1.4301 Technical: welded Usage: Petroleum&Chemical industry Size: OD: 6.25-254mm WT: 0.5-12mm Key words:...
Torich Duplex 300 Series Boiler Seamless Stainless Steel Pipe

Unit Price: USD 1150 - 1350 / Ton

Min.Order Unit Price
2 Ton USD 1150 / Ton
2 Ton USD 1350 / Ton

Brand: Torich

Packaging: Packed in bundles in boxes

Supply Ability: 25 tons

Min. Order: 2 Ton

Certificate: ISO,CE

Torich Duplex 300 Series Boiler Seamless Stainless Steel Pipe Type: Stainless, Grade: TP304,TP304L, TP316,TP316L, TP321 1.4301 Technical: welded Usage: Petroleum&Chemical industry Size: OD: 6.25-254mm WT: 0.5-12mm Key words: Seamless bolier...
A312 A790 Duplex Stainless Steel Tube

Brand: TORICH

Packaging: Bundle packing by Iron Strips.

Supply Ability: 500 Ton per month

Min. Order: 2 Ton

Certificate: ISO9001

A312 A790 Duplex Stainless Steel Tube Description Duplex stainless steel pipe,Duplex stainless steel tube, seamless Duplex stainless steel pipe,welded Duplex stainless steel pipe, Duplex stainless steel pipe, Duplex stainless steel tube Technique...
ASTM A789 UNS S31803 Super Duplex Stainless Steel Pipe Tubing

Brand: TORICH

Packaging: Pipes are packed in wooden boxes or hexagonal bundles.

Supply Ability: 20000Tons per Year

Certificate: ISO9001,ISO14001,TS16949

Model No.: ASTM A789

ASTM A789 UNS S31803 Super Duplex Stainless Steel Pipe Tubing Application: Neutral chloride environment oil refining industry petrochemical and chemical industry pipeline for chemical industry oil and natural gas industry pulp and paper industry...
2507 Duplex Stainless Steel Tube Tubing

Brand: TORICH

Packaging: Pipes are packed in wooden boxes or hexagonal bundles.

Supply Ability: 20000Tons per Year

Certificate: ISO9001,ISO14001,TS16949

Model No.: ASTM A789

2507 Duplex Stainless Steel Tube Tubing Electric-fusion-welded Steel Pipe for corrosive service. Grade: S31200, S31260, S31500, S31803, S32003, S32205, S32304, S32550, S32750, S32900, S32950, S32760, S32520 Manufacture: Welding, the joints are fully...
ASTM A789 UNS S31803 Duplex Stainless Steel Tube

Brand: TORICH

Packaging: Pipes are packed in wooden boxes or hexagonal bundles.

Supply Ability: 20000Tons per Year

Certificate: ISO9001,ISO14001,TS16949

Model No.: ASTM A789

ASTM A789 UNS S31803 Duplex Stainless Steel Tube Application: Neutral chloride environment oil refining industry petrochemical and chemical industry pipeline for chemical industry oil and natural gas industry pulp and paper industry fertilizer...
ASTM A789 UNS S31803 Duplex Stainless Steel Pipe

Brand: TORICH

Packaging: Pipes are packed in wooden boxes or hexagonal bundles.

Supply Ability: 20000Tons per Year

Certificate: ISO9001,ISO14001,TS16949

Model No.: ASTM A789

ASTM A789 UNS S31803 Duplex Stainless Steel Pipe Chemical composition of S31803 duplex stainless steel tube Application: Neutral chloride environment oil refining industry petrochemical and chemical industry pipeline for chemical industry oil and...
TORICH Stainless Steel Seamless Duplex Tube

Brand: Torich

Packaging: In bundles with seaworthy packing

Supply Ability: 60000 Ton per year

Min. Order: 5 Ton

Certificate: ISO9001:2008 ISO14001:2008, TS16949

TORICH Stainless Steel Seamless Duplex TubeMaterial:329J3L 1.4462 Mechanical Property Steel Grade Reference Table Recommended heat treatment system and mechanical property of steel tube TORICH Stainless Steel Seamless Duplex Tube

China Duplex Stainless Steel Tubes Suppliers

Duplex Stainless Steel Tubes / Pipes, are made by Duplex stainless steels, can be both seamless and welded tubes.

Depending on different steel grade and diameter, and wall thickness of the Duplex Stainless Steel Tubes.


Duplex stainless steels are called [duplex" because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel.

The result is a microstructure of roughly 50% austenite and 50% ferrite. 

Duplex stainless steels have a two-phase microstructure of austenite and ferrite grains.


The main differences in composition, when compared with an austenitic stainless steel is that the duplex steels have a higher chromium content, 20–28%; higher molybdenum, up to 5%; lower nickel, up to 9% and 0.05–0.50% nitrogen.

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