CA15M is one type 12 Chromium stainless steel Casting grade which listed in ASTM A743 and ASTM A487 standard. UNS code in ASTM A743 is J91151. www.castingquality.com
Casting Methods in Casting Quality Industrial:
- Sand Casting
- Investment Casting (Lost Wax Casting, Precision Casting)
Stainless Steel Grade: www.castingquality.com
ASTM A743 Grade CA15M
ASTM A487 Grade CA15M Class A
Reference Casting Standards and others
ASTM A743 Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application.
ASTM A487 Standard Specification for Steel Castings Suitable for Pressure Service.

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- Sand Casting
- Investment Casting
- Shell Casting
- CNC Machining
- CAD Design
- Tools/Mold Design
Stainless Steel Grade | CA15M Chemical Composition / Physical Properties % (max, except where range is given) | |||||||||||
Standard | Grade | Carbon | Manganese | Silicon | Sulfur | Phosphorus | Chromium | Nickel | Molybdenum | Cu | W | V |
ASTM A743 | CA15M | 0.15 | 1.00 | 0.65 | 0.04 | 0.04 | 11.5-14.0 | 1.0 | 0.15-1.0 | – | – | – |
ASTM A487 | CA15M Class A | 0.15 | 1.00 | 0.65 | 0.04 | 0.04 | 11.5-14.0 | 1.0 | 0.15-1.0 | 0.5 | 0.1 | 0.05 |
ASTM A487 Gr.CA 15M require total content of residual elements (Cu+W+V) 0.50 max.
CA15M Heat treatment process: www.castingquality.com
Heat to 1750°F [955°C] minimum, air cool and temper at 1100°F [595°C] minimum.
Or anneal at 1450°F [790°C] minimum.
ASTM A487 Grade CA15M Class A, austenitizing temperature at 1750°F [955°C], quenching cool at 400°F [205°C] in air or liquid, then tempering at 1100°F [595°C]
CA15M Stainless Steel Mechanical Property www.castingquality.com
Stainless Steel Grade | Tensile Strength min | Yield Strength, min | Elongation, min | Reduction of Area, min | ||||
Standard | Grade | UNS | Ksi | MPa | Ksi | MPa | % | % |
ASTM A743 | CA15M | J91150 | 90 | 620 | 65 | 450 | 18 | 30 |
ASTM A487 | CA15M Class A | – | 90-115 | 620-795 | 65 | 450 | 18 | 30 |
CA15M Typical Casting Application www.castingquality.com
- INVESTMENT CASTING
- SAND CASTING.
- LOST WAX CASTING
- PRECISION CASTING