A744 CF3M

ASTM

A744 CF3M

ASME

SA744 CF3M

Type

19Cr-10Ni-Mo

SAE

316L

UNS -Cast

J92800

UNS -Wrought

S31603

Overview

CF3M is an austenitic stainless steel casting alloy defined by ASTM A744/A744M, designed for corrosion-resistant service in demanding industrial environments. It is the low-carbon, molybdenum-bearing version of CF8M and is compositionally equivalent to wrought 316L stainless steel. The addition of molybdenum enhances resistance to pitting and crevice corrosion, particularly in chloride-rich conditions, while the low carbon content improves weldability and minimizes the risk of intergranular corrosion. CF3M is widely used in chemical processing, pharmaceutical equipment, marine applications, and other systems where consistent corrosion performance and long-term durability are essential.

Chemical Composition

Carbon

0.03% Max

0.03% Max

0.03% Max

Manganese

1.50% Max

Silicon

1.50% Max

Phosphorus

0.04% Max

Sulfur

0.04% Max

Chromium

17.00 - 21.00%

Nickel

9.00 - 13.00%

Molybdenum

2.00 - 3.00%

Mechanical Properties

Yield Strength

30 ksi Min

Tensile Strength

70 ksi Min

Elongation at 2 in

30% Min

Frequently Asked Questions

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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