Super Duplex 2507 (UNS S32750) Pipes - Starlight Tubes
Starlight Tubes

Super Duplex 2507 (UNS S32750) Pipes

Ultra-high performance dual-phase 25Cr alloy for severe subsea, marine topside, and sour gas applications

Manufacturing StandardASTM A790 / ASME SA790, ASTM A928, Norsok M-630
Dimensional Range1/2" NB to 16" NB (Seamless & Welded)
Wall Schedules / RatingSCH 10S, 40S, 80S, 160, XXS
Material Inspection & MTCASTM G48 Method A (Ferric Chloride Pitting Test)
Product Overview

Engineered for Severe Offshore Environments

Certified to ASTM A790 / A928 with strict microstructural testing, PREN ≥ 42, and EN 10204 3.1 / 3.2 inspection.

Mill Certified Stock

ASTM A790 UNS S32750 Super Duplex Specifications

Starlight Tubes produces premium cold-pilgered seamless and welded Super Duplex 2507 pipes designed specifically for the most demanding offshore platforms, subsea pipelines, and chemical synthesis reactors.

With high chromium, molybdenum, and nitrogen contents, alloy 2507 offers extraordinary resistance to chloride pitting, crevice corrosion, and uniform corrosion, while delivering minimum yield strengths exceeding 550 MPa.

Technical Specifications

ASTM / ASME Compliant
Standard Specifications
ASTM A790 / ASME SA790, ASTM A928, Norsok M-630
Size Range
1/2" NB to 16" NB (Seamless & Welded)
Schedules
SCH 10S, 40S, 80S, 160, XXS
Pitting Resistance (PREN)
PREN ≥ 42.0
Corrosion Testing
ASTM G48 Method A (Ferric Chloride Pitting Test)
Traceability & Inspection
100% XRF PMI, Eddy Current & Hydrostatic Test
Traceability: EN 10204 3.1 MTC100% PMI Inspected
Metallurgical Specifications

Technical Specifications — Super Duplex 2507 (UNS S32750)

Certified chemical limits, PREN ≥ 42, and mechanical properties for ASTM A790 UNS S32750 seamless pipe

EN 10204 3.1 Certified
Grade / UNSC (max)CrNiMoNCu (max)Mn (max)Si (max)
2507 (UNS S32750)0.03024.0-26.06.0-8.03.5-4.50.24-0.320.501.200.80
Full heat number traceability stamped per length
Custom dimensions & chemical variations supplied upon RFQ
Why Choose Starlight Tubes

Request Super Duplex 2507 Project Pricing

Direct mill pricing, full EN 10204 3.1 certification, and comprehensive metallurgical testing reports for your project requirements.

PREN ≥ 42 Guaranteed
ASTM G48 Pitting Tested
NACE MR0175 / ISO 15156 Compliant
100% PMI & Hydro-Tested
Export Packing & Seaworthy Crates
Rapid Quotation Response
Request Custom Sizing / Quotation
Technical Clarifications

Frequently Asked Questions on Super Duplex 2507 (UNS S32750) Pipes

Key engineering, tolerance, and international compliance answers from our metallurgical quality desk.

Super Duplex 2507 is used in offshore oil platforms, subsea manifolds, heat exchangers, firewater systems, and marine scrubbers where severe pitting, crevice corrosion, and high mechanical pressure exist.

Fast Track Commercial Desk

Request Project Quotation for Super Duplex 2507 (UNS S32750) Pipes

Submit your required sizes, wall thicknesses, material grades, and total tonnage. Our technical sales engineers respond with complete mill pricing and lead times within 24 hours.

EN 10204 3.1 MTC Traceability
Third-Party Inspection Ready (TUV, DNV, BV)
Proven Industrial Track Record

Precision Manufacturing at Global Scale

Certified manufacturing, rigorous batch inspection, and reliable export logistics powering critical infrastructure projects across 6 continents.

100,000+
Metric Tons Shipped
To global energy & industrial sectors
60+
Export Destinations
USA, GCC, Europe & Asia-Pacific
ISO 9001
Certified Quality System
EN 10204 3.1 & 3.2 Traceability
99.9%
On-Time Dispatch Rate
Direct from Nhava Sheva (JNPT) port
100%
Hydrostatic Tested
Pressure tested up to 500 Bar