Super Austenitic 926 1.4529 Stainless Steel Round Bar Diameter 10 - 300mm

Super Austenitic 926 (1.4529) Stainless Steel Round Bar Diameter 10 - 300mm

Products Specification

Introduction

926 stainless steel (UNS S32654 / EN 1.4529) is a super-austenitic stainless steel alloyed with high chromium, nickel, molybdenum, and nitrogen. It offers exceptional corrosion resistance, especially in chloride-rich environments, surpassing standard grades like 316L and 904L. The addition of copper enhances its resistance to sulfuric acid.

Key Parameters

• Chemical Composition (%):

  • Cr: 24-26 | Ni: 21-23 | Mo: 6.0-7.0 | Cu: 0.5-1.5 | N: 0.3-0.5 | C: ≤0.02 | Fe: Balance

• Mechanical Properties:

  • Tensile Strength: ≥650 MPa | Yield Strength: ≥350 MPa | Elongation: ≥40% | Hardness: ≤220 HB

• Physical Properties:

  • Density: 8.1 g/cm³ | Melting Range: 1350-1400°C

Specifications & Standards

• Forms: Round bars, flat bars, hex bars, square bars.

• Sizes: Diameter typically 5mm–300mm (custom sizes available).

• Standards:

  • ASTM: UNS S32654

  • EN/DIN: 1.4529

  • Other: NACE MR0175 (for sour service)

Characteristics

1. Corrosion Resistance:

   • Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in seawater, brine, and acidic media.

2. High Strength:

   • Superior to standard austenitic steels due to nitrogen strengthening.

3. Weldability:

   • Good weldability using matching filler metals (e.g., ERNiCrMo-10).

4. Thermal Stability:

   • Performs well in temperatures up to 400°C (continuous) and higher for short-term exposure.

Equivalent Grades

Applications

926 stainless steel bars are widely used in aggressive environments, including:

• Oil & Gas: Offshore platforms, subsea components.

• Chemical Processing: Reactors, piping for sulfuric/phosphoric acid.

• Marine: Pump shafts, valves, seawater desalination systems.

• Power Plants: Flue gas desulfurization (FGD) units.

• Pulp & Paper: Bleaching equipment.

Advantages Over Alternatives

• Outperforms 316L/904L in extreme chloride exposure.

• More cost-effective than nickel alloys (e.g., Hastelloy®) for many applications.

For specific technical requirements (e.g., NACE compliance), verify with material test reports (MTRs).

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Super Austenitic 926 1.4529 Stainless Steel Round Bar Diameter 10 - 300mm Images