Yuhong Group Co.,Ltd
| Payment Terms | L/C, T/T |
| Delivery Time | 7DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| STANDARD | ASTM A789, ASME SA789, ASTM A790 , ASME SA790 , ASTM A928, ASME SA928 |
| GRADE | S31803 , S32750, S32760, S31254 , 254Mo, 253MA |
| TYPE | Welded,Seamless |
| NDT | ET/UT/HT |
| OD | 1"---48" |
| WT | SCH10,SCH40 |
| Brand Name | YUHONG |
| Model Number | S31803 , S32750, S32760, S31254 , 254Mo, 253MA |
| Certification | ABS, LR, GL, DNV, NK, TS, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Delivery Time | 7DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap | STANDARD | ASTM A789, ASME SA789, ASTM A790 , ASME SA790 , ASTM A928, ASME SA928 |
| GRADE | S31803 , S32750, S32760, S31254 , 254Mo, 253MA | TYPE | Welded,Seamless |
| NDT | ET/UT/HT | OD | 1"---48" |
| WT | SCH10,SCH40 | Brand Name | YUHONG |
| Model Number | S31803 , S32750, S32760, S31254 , 254Mo, 253MA | Certification | ABS, LR, GL, DNV, NK, TS, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA | ||
| High Light | S31254 Welded Pipes ，S32750 Welded Pipes ，S32205 Welded Pipes | ||
ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254
Key Features of ASTM A928 Pipes
- Manufacturing Process:
- Electric Fusion Welding (EFW) with filler metal added (e.g., SAW, TIG).
Welds are heat-treated to restore duplex microstructure and corrosion resistance.
- Testing Requirements:
- Hydrostatic Testing: Mandatory for all pipes.
- Non-Destructive Examination (NDE): Radiography or ultrasonic testing for welds.
- Mechanical Testing: Tensile, hardness, and impact tests.
Classes of ASTM A928 Welded / EFW Pipe
| Class type | Welding | Filler Metal | Radiography Test |
|---|---|---|---|
| ASTM A928 Class 1 | Double welded with filler metal | Yes | 100% |
| ASTM A928 Class 2 | Double welded with filler metal | Yes | NA |
| ASTM A928 Class 3 | Single welded with filler metal | Yes | 100% |
| ASTM A928 Class 4 | Single Welded without addition filler metal | Without filler (Root pass to be done) | 100% |
| ASTM A928 Class 5 | Double welded with filler metal | Yes | Spot |
Duplex Stainless Steel have a structure that contains both ferrite and austenite.
Duplex alloys have higher strength and better stress corrosion cracking resistance than most austenitic alloys and greater toughness than ferritic alloys, especially at low temperatures.
The corrosion resistance of duplex alloys depends primarily on their composition, especially the amount of chromium, molybdenum, and nitrogen they contain.
Material Grade: Chemical Composition
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Application:
Key Benefits of ASTM A928 Pipes
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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