A995 2A

ASTM

A995 2A

ASME

SA995 2A

Type

24Cr-10Ni-Mo-N

ACI

CE8MN

UNS -Cast

J93345

Overview

Grade 2A is a duplex stainless steel casting alloy specified under ASTM A995/A995M, engineered for pressure-containing parts in demanding corrosive environments. It features a balanced composition of chromium, nickel, molybdenum, and nitrogen, resulting in a dual-phase microstructure that offers high mechanical strength and excellent corrosion resistance. Grade 2A provides enhanced resistance to pitting and crevice corrosion in chloride-bearing media and is well suited for components exposed to seawater, brines, and chemical process fluids. Typical applications include pump and valve castings, pressure vessels, and marine hardware used in desalination, offshore platforms, and industrial processing systems.

Chemical Composition

Carbon

0.080% Max

0.080% Max

0.080% Max

Manganese

1.00% Max

Silicon

1.50% Max

Phosphorus

0.040% Max

Sulfur

0.040% Max

Chromium

22.50 - 25.50%

Nickel

8.00 - 11.00%

Molybdenum

3.00 - 4.50%

Nitrogen

0.10 - 0.30%

Mechanical Properties

Yield Strength

65 ksi Min

Tensile Strength

95 ksi Min

Elongation at 2 in

25% Min

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© Alloy Casting Industries Ltd 2025

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© Alloy Casting Industries Ltd 2025

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© Alloy Casting Industries Ltd 2025