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ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254
ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254
ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254
ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254
ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254
ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254
Specifications
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
MOQ :
100KGS
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
Description

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.

Standard: ASTM/ASME A/SA928.

Material Grade: Chemical Composition

UNS EN DIN C % Cr% Ni% Mo% N% Other %
S31803 1.4462 X2CrNiMoN22-5-3 0.030max 21.0-23.0 4.5-6.5 2.5-3.5 0.08-0.20 /
S32205 1.4462 X2CrNiMoN22-5-3 0.030max 22.0-23.0 4.5-6.5 3.0-3.5 0.14-0.20 /
S32101 1.4162 0.040max 21.0-22.0 1.35-1.70 0.10-0.80 0.20-0.25 Cu 0.10-0.80
S32304 0.030max 21.5-24.5 3.0-5.5 0.05-0.60 0.15-0.20 Cu 0.05-0.60
S32750 1.4410 X2CrNiMoN25-7-4 0.030max 24.0-26.0 6.0-8.0 3.0-5.0 0.24-0.32 Cu 0.50max
S32760 0.050max 24.0-26.0 6.0-8.0 3.0-4.0 0.20-0.30 Cu 0.50-1.00

Application:

  • Oil & Gas: Subsea pipelines, risers, and sour service (H₂S-containing) environments.
  • Chemical Processing Acid tanks, heat exchangers.
  • Desalination Plants: Seawater intake and brine handling.
  • Pulp & Paper: Bleaching equipment.
  • Marine: Shipbuilding and offshore platforms.

Key Benefits of ASTM A928 Pipes

  • High Strength-to-Weight Ratio**: Allows thinner walls, reducing material costs.
  • Stress Corrosion Cracking (SCC) Resistance**: Ideal for chloride-rich or high-temperature environments.
  • Longevity: Minimal maintenance compared to carbon steel or 300-series SS.
  • Compliance: Meets NACE MR0175/ISO 15156 for sour service.

ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254
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ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254

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Product Detail
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
MOQ :
100KGS
Payment Terms :
L/C, T/T
Contact Supplier
ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254
ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254
ASTM A928 CL.1 Super Duplex Steel Welded Pipes S32750 S32205 S31254

Yuhong Group Co.,Ltd

Verified Supplier
13 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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