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ASTM A815 S32750 / SAF 2507 Cap, Super Duplex Butt Weld Pipe Fitting For Offshore Oil And Gas Platforms

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ASTM A815 S32750 / SAF 2507 Cap, Super Duplex Butt Weld Pipe Fitting For Offshore Oil And Gas Platforms

Brand Name : YUHONG

Model Number : ASTM A815 S32750 / SAF 2507

Certification : API, PED, AD 2000, ISO 9001

Place of Origin : CHINA

MOQ : 1PC

Price : Negotiation

Payment Terms : T/T, L/C at sight

Supply Ability : 5000 PCS PER MONTH

Delivery Time : Depends on quantity

Packaging Details : PLY-WOODEN CASE OR PALLET

Product Name : Super duplex cap

Specification : ASTM A815/ASME SA815

Material : S32750 / 1.4410 / SAF 2507

Size : 1/2" – 48" (DN15 – DN1200)

Schedule : SCH 10 - XXS

Dimension Standard : ASME B16.9

Surface : Pickled & Passivated

Applications : Oil & Gas / Offshore / Marine / Desalination

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ASTM A815 S32750 / SAF 2507 Cap, Super Duplex Butt Weld Pipe Fitting For Offshore Oil And Gas Platforms

Overwiew of ASTM A815 S32750 / SAF 2507 Cap

The ASTM A815 S32750 cap is a butt-weld fitting manufactured from super duplex stainless steel, designated as UNS S32750 or SAF 2507 (1.4410). Designed to seal pipe ends in high-pressure and highly corrosive environments, it offers exceptional mechanical strength and outstanding corrosion resistance.

With a PRE (pitting resistance equivalent) value exceeding 40, it provides superior resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-rich environments such as seawater and chemical processing applications. Manufactured in accordance with ASME B16.9 dimensional standards, the cap undergoes solution annealing treatment at 1025–1125°C followed by rapid cooling to maintain its optimal dual-phase microstructure (50% ferrite / 50% austenite).

This fitting is widely used in offshore platforms, seawater desalination plants, chemical processing, and oil & gas industries where reliability under extreme conditions is critical.

Chemical Composition of ASTM A815 S32750

Grade C Mn Si P S Cr Mo Ni N Fe
S32750

0.030 max

1.20max

0.80 max

0.035 max

 0.020 max 24.0-26.0 3.00 - 5.00 6.00-8.00 0.24-0.32 58.095 min

Mechanical Properties of ASTM A815 S32750 Cap

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi – 116000 , MPa – 800 Psi – 80000 , MPa – 550 15 %

ASTM A815 S32750 Equivalent Grades

Standard/Region

Equivalent Grade

Remarks

ASTM/UNS (USA)

UNS S32750, ASTM A182 F53

Core equivalent, interchangeable

EN/DIN (Europe)

1.4410, X2CrNiMoN25-7-4

Most commonly used in Europe

GB (China)

S25073, 022Cr25Ni7Mo4N

Chinese national standard

Commercial Grade

SAF 2507

Universal commercial name

Applications of ASTM A815 S32750 / SAF 2507 Cap

Industry

Specific Application Scenarios
Oil & Gas
Offshore platforms, oil/gas gathering pipelines, acidic oilfields (with H2S), wellhead equipment
Marine/Offshore
Marine engineering, ship pipelines, offshore wind power, seawater pipelines
Desalination
Seawater desalination plants, high-chloride water treatment pipelines
Chemical Industry
Chemical processing, corrosive medium pipelines, acid-base storage and transportation systems
Other
Nuclear power, papermaking, high-pressure corrosive pipelines

ASTM A815 S32750 / SAF 2507 Cap, Super Duplex Butt Weld Pipe Fitting For Offshore Oil And Gas Platforms


Product Tags:

Heat Exchangers Butt Weld Cap

      

Super Duplex Steel Butt Weld Cap

      

WP-S Steel Pipe Fittings

      
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ASTM A815 S32750 / SAF 2507 Cap, Super Duplex Butt Weld Pipe Fitting For Offshore Oil And Gas Platforms Images

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