Material Grade Specification

Super Duplex 2507 Flanges — ASTM A182 Grade F53

Super Duplex 2507 flange manufacturer, Mumbai. UNS S32750 F53, PREN >=42, high yield 550 MPa. Sour gas & deepwater subsea spec. Quote in 30 min.

Material Specification & Overview

Super Duplex 2507 (UNS S32750) delivers extreme resistance to localized pitting and crevice corrosion with PREN ≥ 42, engineered for severe marine, subsea oilfield, and aggressive acid processing.

UNS DesignationS32750 (F53)
Governing StandardASTM A182 / ASME SA-182 Grade F53

Chemical Composition (wt %)

Governing specification limits per ASTM / ASME standards. Actual values provided on EN 10204 3.1 MTC.

ElementSpecification Limit / Composition
Chromium (Cr)24.0 - 26.0%
Molybdenum (Mo)3.0 - 5.0%
Nickel (Ni)6.0 - 8.0%
Nitrogen (N)0.24 - 0.32%

Mechanical Properties

PropertySpecification Limit
Yield Strength550 MPa (80 ksi) min
Tensile Strength795 MPa (116 ksi) min
Hardness310 HBW max
PREN≥ 42

Pressure-Temperature Rating Reference

Service TempClass 150Class 300Class 600Class 900
Ambient (-29 to 38°C)290 psi750 psi1500 psi2250 psi

Primary Industry Applications

Deepwater subsea Christmas trees and manifold hubs
Sour gas (H2S) processing lines complying with NACE MR0175
High-concentration warm seawater piping
Flue-gas desulfurization (FGD) scrubber systems

Related Products & Industry Guides

Frequently Asked Procurement Questions

Q: What does PREN ≥ 42 signify for Super Duplex 2507?

A: PREN (Pitting Resistance Equivalent Number = %Cr + 3.3%Mo + 16%N) quantifies resistance to localized pitting. A score ≥ 42 guarantees immunity to pitting in high-temperature seawater and chloride-saturated environments.

Direct Factory Pricing

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