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Introduction

Super Duplex Steel UNS S32950 Round Bar combines high strength, corrosion resistance, and superior toughness, suitable for structural and fabrication applications in marine and chemical environments.

Advantage

Good Toughness - Elongation ≥25% improves ductility and reduces cracking risk during welding and fabrication.

Machinability - Simplified alloy composition improves efficiency in cutting, drilling, and threading processes.

Cost Efficiency - Delivers high strength and corrosion resistance at a lower alloy cost than higher-grade super duplex steels.

Specification

Item	Details
Product Name	Super Duplex Steel UNS S32950 Round Rod / Super Duplex Steel UNS S32950 Round Bar
Standard	ASTM A276, ASTM A479, EN 10272
Material Type	Super Duplex Stainless Steel
Form	Round Rod / Round Bar
Diameter	6 mm – 450 mm
Length	1 m – 6 m (custom lengths available)
Tensile Strength	≥ 750 MPa
Yield Strength (0.2% Offset)	≥ 550 MPa
Elongation	≥ 25%
Hardness (HB)	≤ 310
Surface Finish	Black, Pickled, Polished, Turned
Delivery Condition	Hot Rolled, Forged, Cold Drawn, Machined

Chemical Composition (%)

Element	Content
Chromium (Cr)	24.0 – 26.0
Nickel (Ni)	6.0 – 8.0
Molybdenum (Mo)	2.5 – 3.5
Nitrogen (N)	0.20 – 0.30
Manganese (Mn)	≤ 1.20
Silicon (Si)	≤ 1.00
Carbon (C)	≤ 0.03
Phosphorus (P)	≤ 0.03
Sulfur (S)	≤ 0.02
Iron (Fe)	Balance

Applications

Oil & Gas: Pump shafts, piping systems, and heat exchangers in high-pressure environments

Marine & Offshore: Ship structures, platform components, and seawater systems

Chemical Processing: Reactors, valves, and storage tanks in corrosive conditions

Desalination & Water Treatment: Equipment exposed to high-chloride environments

Energy & Power: Pressure vessels and high-temperature components

Product-Application

Customization

Item	Options
Size & Length	Custom diameter and cut-to-length
Machining	Cutting, drilling, threading, and CNC machining
Fabrication	Welding and assembly per drawings
Surface Finish	Pickled, polished, coated
Tolerance	Custom tolerances available

Delivery & Packaging

Stock items: 7–15 days shipping

Custom orders: 20–30 days depending on quantity and specifications

Export-standard secure packaging ensures safe and damage-free delivery

Packaging--Shipping

Certification

We are ISO 9001 certified and provide Mill Test Certificates (MTC), as well as optional EN 10204 3.1/3.2 third-party inspection reports, ensuring full compliance and traceability.

Our certificates

FAQ

Q: How does UNS S32950 compare to standard duplex stainless steels?

A: It offers higher strength and improved corrosion resistance than standard duplex grades, while maintaining better toughness and workability for fabrication.

Q: Is UNS S32950 suitable for welding and fabrication?

A: Yes, its elongation (≥25%) and balanced microstructure provide good weldability and reduce the risk of cracking during fabrication.

Q: Can UNS S32950 be used for structural applications?

A: Yes, its high strength and good ductility make it suitable for load-bearing structures while allowing weight reduction.

Q: What is the delivery time?

A: Normally, 7–15 days for stock, 20–30 days for customized production.

Q: Can I order customized dimensions?

A: Absolutely, we support non-standard sizes and machining per drawings.

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Super Duplex Steel UNS S32950 Round Bar