1.4466 310MOLN Stainless Steel Round Bar and Stainless Steel Rod for High-Temperature Applications

1.4466 310MOLN Stainless Steel Round Bar is a high-alloy austenitic stainless steel grade designed for demanding environments. The material combines excellent resistance to corrosion and high-temperature oxidation with improved mechanical strength compared to standard 310 stainless steel. The "MOLN" designation indicates a modified chemistry with controlled nitrogen and molybdenum additions, enhancing pitting and crevice corrosion resistance in aggressive media.

• High chromium and nickel content for superior oxidation resistance at elevated temperatures
• Molybdenum and nitrogen additions improve resistance to pitting and crevice corrosion
• Excellent performance in acidic and chloride-containing environments
• Good creep strength and structural stability at high temperatures
• Fully austenitic microstructure — non-magnetic in the annealed condition
• Round bar form suitable for machining, forging, and fabrication

• Chemical and petrochemical processing equipment
• Heat exchangers, furnace components, and high-temperature ducting
• Flue gas desulfurization systems
• Marine and offshore hardware exposed to chloride-rich atmospheres
• Industrial fasteners, shafts, and valve components
• Pollution control and waste incineration plant parts

Values are indicative and may vary within the standard specification range. Confirm exact composition with the mill certificate for your order.

Mechanical properties are typical for annealed round bar and may vary with diameter and processing route.

• Round bar diameters from 6 mm to 500 mm (custom sizes available on request)
• Supplied in random lengths, fixed cut lengths, or precision-cut to order
• Surface conditions: peeled, ground, polished, or hot-rolled
• Other product forms such as wire rod, plate, and forgings available

• EN 10088-3 — Stainless steels for semi-finished products, bars, rods, and sections
• EN 10095 — Heat-resisting steels and nickel alloys
• ASTM A276 — Standard specification for stainless steel bars and shapes
• ASTM A479 — Stainless steel bars for use in boilers and pressure vessels
• Material number: 1.4466
• Common trade designation: 310MOLN

• Machinability is moderate; use sharp tooling and appropriate cutting fluids
• Weldable by common fusion methods; use matching filler metals for best corrosion performance
• Hot working recommended in the range 1150–900 °C followed by rapid cooling
• Solution annealing typically performed at 1050–1150 °C with water quenching
• Avoid prolonged exposure to temperatures in the 600–900 °C range to prevent sigma phase formation

To request a quotation or place an order for 1.4466 310MOLN Stainless Steel Round Bar, please specify the required diameter, length, quantity, surface finish, and any applicable certification requirements (e.g., EN 10204 3.1 or 3.2). Custom cutting and testing services are available upon request.