CA6NM A743 A743M A487

Grade（UNS）：CA6NM  (J91540)

Type：12 Chromium,4 Nickel

CA6NM Chemical Requirements:

C(max):0.06

Men(max)：1.00

Si(max)：1.00

P(max):0.04

S(max):0.03

Cr:11.5~14.0

Ni:3.5~4.5

Molybdenum:0.40~1.0

Heat Treatment Requirements:

Heat to 1850°F [1010°C] minimum, air cool to 200°F [95°C] or lower prior to any optional intermediate temper and

prior to the final temper. The final temper shall be between 1050°F [565°C] and 1150°F [620°C].

Microstructure：Martensitic stainless steel

Tensile Requirements:

Tensile Strength, min

Tensile, ksi:110

Tensile, MPa:755

Yield Strength, min

Yield, ksi:80

Yield, MPa:550

Elongation in 2 in. [50 mm] min, %A: 15

Reduction of Area, min, %:35

Alloy Designation:

A743/A743M-13a  Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
A451ASTM A451-06 Standard Specification for Centrifugally Cast Austenitic Steel Pipe for High-Temperatu
A487 Standard Specification for Steel Castings Suitable for Pressure Service
A351 Standard Specification for Castings, Austenitic, for Pressure-Containing Parts
A352 Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low-Temperature Service
A703 Standard specification for steel casting,General requirements,for pressure-containing parts

Features:

1. High abrasion resistance
2. Corrosion resistance
3. Tear resistance 
4. Hardness: 

Applications of CA6NM:

1. Roller screen rolls for the iron ore pelletizing industry 
2. Subsequent pellet processing operation in the steel industry