Active Member
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[China]
Address: Xinlian Steel Mansion , No 1288 Guangrui Road , Liangxi District , Wuxi City , Jiangsu Province P.R.CHINA.
Contact name:Vera
Jiangsu Zhongtong Weiye Special Steel Co. LTD |
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Duplex Steel Pipe is a metal alloy pipes that is made out of steel with different alloying elements. The name comes from the dual nature of the material. The duplex material contains bot the austenitic and ferrite structures in the metallurgy of the material.
| Standards | Duplex stainless steel seamless tubes/Stainless Steel Pipes 317LN/S2005/S2507/316LN |
| Equivalent Standards | EN 10216-2, ASTM A335, GOST 550-75 |
| Material | T91, K11562 |
| Equivalent Material | 13CrMo44, 1.7335, 13CrMo4-5, P12, 14CrMo3, 620-440, TU 13 CD 4-04 |
| Specialized in | Large Diameter Size |
| Outer Dimensions | 6-2500mm; WT:1-200mm |
| Wall Thickness | Schedule 3mm to 15mm. |
| Length | max 1~12m |
| Schedule | STD, SCH40, SCH80 |
| Standard | ASTM A213 T91, SA213 T91 (with IBR Test Certificate) |
| Sa213 T91 Specifications | ASTM A213 & ASTM A209 (T1 , Ta, T1b) BS/3059/90/PartII/620 & 622 DIN/17175/13CrMo44 DIN/17175/10CrMo910 DIN/17175/15Mo3 |
| Size | 6.35 mm OD to 101.6 mm OD |
| Sch. & Swg. | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg., 3.6 mm Thk |
| Thickness | 3-12mm |
| Tolerance | Cold drawn pipe: +/-0.1mm Cold rolled pipe: +/-0.05mm |
| Craft | Cold rolled and Cold drawn |
| Type | Seamless / ERW / Welded / Fabricated |
| available in Form of | Round, Square, Rectangular, Hydraulic Etc. |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
| Specialized in | ASME SA213 T91 Boiler Tube, SA213 T91 Heater Tube, SA213 T91 Heat Exchanger Tube |
| Additional Testing | NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc. |
| Application | Seamless Ferritic Alloy Steel Tube for High-Temperature Service |
Composition Standard of T91 alloy steel tube
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % | V, % | N, % | Ni, % | Al, % | Nb, % |
| 0.08-0.12 | 0.3-0.6 | 0.02 max | 0.01 max | 0.2-0.5 | 8.0-9.5 | 0.85-1.05 | 0.18-0.25 | 0.03-0.07 | 0.4 max | 0.04 max | 0.06-0.10 |
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APPLICATION
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Why Choose Us?
1. How can we guarantee quality?
Always a pre-production sample before mass production; Always final
Inspection before shipment
2. What Are your Advantages?
More precise dimension, Perfect inspection method and
inspection equipment etc
3. Why should you buy from us not from other suppliers?
Large and stable supplies, long-term supplies
Prompt delivery, rich exporting experience
