ASTM A815 S32750 Duplex Steel Pipe Fittings Seamless Equal Tee Butt Welded B16.9

ASTM A815 S32750 DUPLEX STEEL SMLS EQUAL TEE B16.9 FOR OIL AND GAS REFINING ETC. USE

Overview

Duplex 2507 is a super duplex stainless steel designed for applications which demand exceptional strength and corrosion resistance. Alloy 2507 has 25% chromium, 4% molybdenum, and 7% nickel. This high molybdenum, chromium and nitrogen content results in excellent resistance to chloride pitting and crevice corrosion attack and the duplex structure provides 2507 with exceptional resistance to chloride stress corrosion cracking.

Usage of Duplex 2507 should be limited to applications below 600° F (316° C). Extended elevated temperature exposure can reduce both the toughness and corrosion resistance of alloy 2507.

Duplex 2507 possesses excellent mechanical properties. Often a light gauge of 2507 material can be used to achieve the same design strength of a thicker nickel alloy. The resulting savings in weight can dramatically reduce the overall cost of fabrication.

Specification

ASTM A815/A815M-20 Standard Specification for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings.

Chemical Composition

Mechanical Properties

Applications

• 1. Chemical processing, transport and storage
• 2. Oil and gas exploration and offshore rigs
• 3. Oil and gas refining
• 4. Marine environments
• 5. Pollution control equipment
• 6. Pulp & paper manufacturing
• 7. Chemical process plant
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