Yuhong Group Co.,Ltd
| Payment Terms | T/T ; L/C at sight |
| Supply Ability | 1500tons/month |
| Delivery Time | 5-60 Days |
| Packaging Details | PLY-WOODEN CASE OR PALLET |
| Standard | ASTM A815 / ASME SA815 |
| Product Name | SUPER DUPLEX STEEL REDUCER ELBOW EQUAL TEE |
| Dimension Standard | ANSI B16.9 |
| Size | Seamless : 1/2″ – 10″, Welded : 1/2″ – 48″ |
| Wall Thickness | SCH 10S to XXS |
| Certificates | ISO, TUV, BV, SGS, etc. |
| Application | Oil/Gas/Chemical |
| High Light | Super Duplex Steel Fittings, UNS S31803 Steel Pipe Fittings |
| Brand Name | YUHONG |
| Model Number | A815 S31803-S CONCENTRIC REDUCER |
| Certification | API, PED , ABS, DNV, BV, LR |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T ; L/C at sight | Supply Ability | 1500tons/month |
| Delivery Time | 5-60 Days | Packaging Details | PLY-WOODEN CASE OR PALLET |
| Standard | ASTM A815 / ASME SA815 | Product Name | SUPER DUPLEX STEEL REDUCER ELBOW EQUAL TEE |
| Dimension Standard | ANSI B16.9 | Size | Seamless : 1/2″ – 10″, Welded : 1/2″ – 48″ |
| Wall Thickness | SCH 10S to XXS | Certificates | ISO, TUV, BV, SGS, etc. |
| Application | Oil/Gas/Chemical | High Light | Super Duplex Steel Fittings, UNS S31803 Steel Pipe Fittings |
| Brand Name | YUHONG | Model Number | A815 S31803-S CONCENTRIC REDUCER |
| Certification | API, PED , ABS, DNV, BV, LR | Place of Origin | CHINA |
| High Light | duplex stainless steel fitting ，ASTM A815 steel fitting ，UNS S31803 stainless fitting | ||
Duplex Stainless Steel ASTM A815 UNS S31803 Fitting
ASTM A815 UNS S31803 duplex stainless steel fittings are forged from 2205 alloy with an austenite-ferrite duplex structure. Their yield strength is twice that of conventional austenitic stainless steel, while offering excellent resistance to chloride stress corrosion cracking and pitting and crevice corrosion (PREN ≥ 33).
These fittings are designed to provide high-strength, lightweight, and corrosion-resistant connection solutions for piping systems in harsh environments such as chemical, oil and gas, and offshore engineering.
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex 2205 | 1.4462 | S31803 / S32205 |
Chemical Composition of Grade S31803 / S32205 Duplex Steel Seamless Pipe Fittings
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 - 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Application
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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