Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Supply Ability | |
| Delivery Time | 7DAYS |
| Packaging Details | Ply-wooden Case |
| Standard | ASME SA815 |
| Material | S31803 |
| NDT | PT/UT |
| Size | CustomizeSize, 1/8"-2", 1/2"-48", 1/2"-6", DN15-DN1200 |
| Thickness | STD, DIN, SCH40, SGP, SCH10-XXS(2-60mm) |
| Application | Gas And Oil Pipes, Petroleum Gas, Joining Pipe Lines |
| Brand Name | YUHONG |
| Model Number | ASME SA815 S31803 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | |
| Delivery Time | 7DAYS | Packaging Details | Ply-wooden Case |
| Standard | ASME SA815 | Material | S31803 |
| NDT | PT/UT | Size | CustomizeSize, 1/8"-2", 1/2"-48", 1/2"-6", DN15-DN1200 |
| Thickness | STD, DIN, SCH40, SGP, SCH10-XXS(2-60mm) | Application | Gas And Oil Pipes, Petroleum Gas, Joining Pipe Lines |
| Brand Name | YUHONG | Model Number | ASME SA815 S31803 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | CHINA |
| High Light | B16.9 Elbow Pipe Fitting ，S31803 Duplex Steel Elbow | ||
ASME SA815 S31803 Duplex Steel Fitting Buttwelded 90Deg Elbow for Pipeline
ASME SA815 Standard for Malleable Ferritic, Ferritic Austenitic, and Martensitic Stainless Steel Pipe fittings. S31803 belongs to duplex stainless steel. 22% chromium duplex (austenitic/ferritic) steel (2205 type), with moderate to high strength and good resistance to common corrosion/stress, corrosion/cracking.
In today's market, UNS S32205 is generally considered an upgraded and more commonly used grade of S31803. Their chemical compositions are very similar. S32205, by increasing the lower limit of nitrogen content, ensures sufficient austenite phase reformation in the weld heat-affected zone, thus guaranteeing the toughness and corrosion resistance of the weld joint. Therefore, S32205 is the preferred grade for modern 2205 duplex steel.
ASME SA815 S31803 Duplex Stainless Steel Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | Fe | Other |
| S31803 | ≤0.03 | ≤2 | ≤1 | ≤0.03 | ≤0.02 | 21~23 | 4.5~6.5 | 2.5~3.5 | margin | N 0.08~0.2 |
ASME SA815 S31803 Duplex Stainless Steel Fitting Advantages
ASME SA815 S31803 Duplex Stainless Steel Minimum Mechanical Performance Value
| Grade | Tensile strength (Rm N/mm2) | Yield strength (RP 0.2N/mm2) | Elongation rate (A5%) | Brinell hardness (HB) |
| S31803 | 620 | 450 | 25 | 290 |
ASME SA815 S31803 Duplex Stainless Steel Fitting Main Application
Oil and Gas Industry: Submarine pipelines, oil and gas production and processing facilities, and pipelines for transporting goods in acidic environments.
Chemical and Petrochemical Industry: Heat exchangers, pressure vessels, reactors, and process pipelines for handling chloride-containing media.
Oil and Gas Transportation: Long-distance pipelines.
Seawater Treatment: Seawater desalination plants and seawater cooling systems.
Pulp and Paper Industry: Distillers and bleaching equipment.
Environmental Engineering: Flue gas desulfurization (FGD) systems and wastewater treatment equipment.
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 Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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