Yuhong Group Co.,Ltd
| Payment Terms | T/T, L/C at sight |
| Supply Ability | 10000TONS/Months |
| Delivery Time | Depends on quantity |
| Packaging Details | WOODEN CASE |
| Material Grade | S31803 |
| Standard | ASTM A789 |
| NDT | ET, UT, HT , PT |
| Size | 1/2” to 8” |
| W.T. | 1mm to 50mm |
| Length | Single random length/ Double random length or as customer’s actual request |
| Packing | Ply-wooden Case /Iron Case/ Bundle |
| Application | Piping/ heat exchangers/Food processing equipment |
| Brand Name | YUHONG |
| Model Number | S31803 |
| Certification | ABS, GL, BV, GOST, TS, CCS, CNNC, ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C at sight | Supply Ability | 10000TONS/Months |
| Delivery Time | Depends on quantity | Packaging Details | WOODEN CASE |
| Material Grade | S31803 | Standard | ASTM A789 |
| NDT | ET, UT, HT , PT | Size | 1/2” to 8” |
| W.T. | 1mm to 50mm | Length | Single random length/ Double random length or as customer’s actual request |
| Packing | Ply-wooden Case /Iron Case/ Bundle | Application | Piping/ heat exchangers/Food processing equipment |
| Brand Name | YUHONG | Model Number | S31803 |
| Certification | ABS, GL, BV, GOST, TS, CCS, CNNC, ISO | Place of Origin | China |
Duplex Stainless Steel Tube ASTM A789 UNS S31803 Gas Oil Heat Exchangers Boiler
YUHONG GROUP deal with Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 25 years, every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 45 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Korea, Singapore, Austrial, Poland, France , ....And our group branch company and factory have been already approved by :ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004.
Chemical Composition of ASTM A789 UNS S31803
| Chemical composition for ASTM A789 UNS S31803 tubing, % | |
|---|---|
| C | ≤0.030 |
| Mn | ≤2.00 |
| P | ≤0.030 |
| S | ≤0.020 |
| Si | ≤1.00 |
| Ni | 4.5-6.5 |
| Cr | 21.0-23.0 |
| Mo | 2.5-3.5 |
| N | 0.08-0.20 |
Physical Properties of ASTM A789 UNS S31803
Grade S31803 has similar physical properties to that of S32205.
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C ( J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| UNS S32205 / 2205 | 782 | 190 | 13.7 | 14.2 | - | 19 | - | 418 | 850 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell C (HR C) | Brinell (HB) | ||||
| UNS S32205 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
Duplex Stainless Steel Pipe Application:
Pressure vessels, tanks, piping, and heat exchangers in the chemical processing industry
Piping, tubing, and heat exchangers for the handling of gas and oil
Effluent scrubbing systems
Pulp and paper industry digesters, bleaching equipment, and stock-handling systems
Rotors, fans, shafts, and press rolls requiring combined strength and corrosion resistance
Cargo tanks for ships and trucks
Food processing equipment
Biofuels plants
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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