ASTM A182 UNS S31254

ASTM A182 UNS S is a forging material specification for S grade stainless steel and is used for manufacturing bare forgings or forged and machined products for applications involving high temperature service. Boltport Fasteners offers forged bolts, screws, nuts, studs, threaded rods and similar fasteners or bolting parts in astm a182 UNS S specification.

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ASTM A182 specification covers requirements such as chemical composition, mechanical properties, heat treatment and other supplementary requirements for S stainless steel forgings and forged products.

Chemical Composition

Identification Symbol UNS Number Grade Elements Composition % F44 S 21 chromium, 26 nickel,
4.5 molybdenum Carbon 0.02 max Manganese 2.00 max Phosphorus 0.04 max Sulfur 0.03 max Silicon 1.00 max Nickel 23.00 - 28.00 Chromium 19.00 - 23.00 Molybdenum 4.00 - 5.00 Copper 1.00 - 2.00 Nitrogen 0.10 max

Mechanical Properties

All our 6Mo materials are produced by Norsok M-650 Ed.4 and/ or ISO qualified manufacturers.

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The 6Mo super austenitic steel combines moderate tensile strength and high ductility with excellent corrosion resistance in seawater and variety of industrial environment. Typically the alloy has PREN of 42 &#; 44, which ensure that the resistance to pitting corrosion is high and it also has a hight resistance to crevice corrosion.

Trademark information: 254 SMO is a trademark owned by Outokumpu OY.

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