Stainless steel CF3MN is a low carbon, nitrogen enhanced austenitic stainless steel with high corrosion resistance and strength property. It’s typically used for elevated temperature applications. CF3MN is 21 Chromium-24 Nickel with Molybdenum and Nitrogen, generally it’s CF3M + Nitrogen. Thus, CF3MN is same as 316LN (316L + Nitrogen). The nitrogen in stainless steel CF3MN adds additional resistance to sensitization in some application.
CF3MN is listed in ASTM A351 and ASTM A743 standard. Casting UNS number is J92804 defined in ASTM A743. WW.CASTINGQUALITY.COM
Casting Quality Industrial provide CF3MN (316LN) castings by sand casting or investment casting (lost wax precision casting) process.
CF3MN (316LN) Equivalent Stainless Steel Grade:WW.CASTINGQUALITY.COM
Wrought Grade: ASTM/UNS 316LN;
Wrought UNS: S31653;
AISI 316LN
JIS G5121 Grade SCS 16AXN;
EN 10088 Grade X2CrNiMoN17-11-2, EN Number 1.4406
ASTM A351 Standard Specification for Castings, Austenitic, for Pressure-Containing Parts:
ASTM 743A Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
ASTM A240 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
ASTM A182: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
ASTM A276: Standard Specification for Stainless Steel Bars and Shapes
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PDF VIEWOur Services
- Sand Casting
Casting Quality focus on Metal Parts industry, we provide professional service in Metal Casting field.
Sand Casting is a popular metal form method, are suitable for all materiel, such as grey iron, ductile iron, malleable iron, carbon steel, stainless steel, aluminum and bronze.
- Investment Casting
also named as precision lost wax casting, mainly suitalbe for carbon steel and stainless steel parts. We also provide grey iron and ductile iron and aluminum and bronze parts by investment casting. It can achieve the best appearance with good tolerance
- Shell Casting
Shell casting method is a good option to replace investment casting and sand casting. the quality is better than sand casting parts, suitable for bulk production.
- CNC Machining
CNC Milling, CNC turning with 5 xix CNC center, we provide precision machining for all castings based on customers design drawings.
- CAD Design
Mechanical Design service based on customers requirement, our software is Solidworks and AutoCAD.
- Tools/Mold Design
Mould design and production will be served for metal casting ad plastic injection industry. Based on our more than 10 years experience, we supply professional molds for our customers in Europe and North American.
| Stainless Steel Grade | CF3MN (316LN) Chemical Composition / Physical Properties % (max, except where range is given) |
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| Standard | Grade | Carbon | Manganese | Silicon | Sulfur | Phosphorus | Chromium | Nickel | Mo | Nitrogen |
| ASTM A743 | CF3MN | 0.03 | 1.50 | 1.50 | 0.040 | 0.040 | 17.0-22.0 | 9.0-13.0 | 2-3 | 0.1-0.2 |
| ASTM A351 | CF3MN | 0.03 | 1.50 | 1.50 | 0.04 | 0.04 | 17.0-21.0 | 9.0-13.0 | 2-3 | 0.1-0.2 |
| ASTM A276 | 316LN | 0.03 | 2.00 | 1.00 | 0.030 | 0.045 | 16-18 | 10-13 | 2-3 | 0.1-0.16 |
| ASTM A182 | F316LN | 0.03 | 2.00 | 1.00 | 0.030 | 0.045 | 16-18 | 11-14 | 2-3 | 0.1-0.16 |
| ASTM A240 | 316LN | 0.03 | 2.00 | 0.75 | 0.03 | 0.045 | 16-18 | 10-14 | 2-3 | 0.1-0.16 |
CF3MN Heat treatment process: www.castingquality.com
Heat to 1900°F [1040°C] minimum, hold for sufficient time to heat casting to temperature, quench in water or rapid cool by other means.
CF3MN (316LN) Stainless Steel Mechanical Property www.castingquality.com
| Stainless Steel Grade | Tensile Strength min | Yield Strength, min | Elongation, min | Reduction of Reduction | Hardness, Max | |||||
| Standard | Grade | UNS | Ksi | MPa | Ksi | MPa | % | min, % | Brinell | Rockwell B |
| ASTM A743 | CF3MN | J92804 | 75 | 515 | 37 | 255 | 35 | – | – | – |
| ASTM A351 | CF3MN | – | 75 | 515 | 37 | 255 | 35 | |||
| ASTM A240 | 316LN | S31653 | 75 | 515 | 30 | 205 | 40 | – | 217 | 95 |
| ASTM A182 | F316LN | S31653 | 75 | 515 | 30 | 205 | 30 | 50 | – | – |
| ASTM A276 | 316LN (S31653) |
Hot finished | 75 | 515 | 30 | 205 | 40 | 50 | – | |
| Cold finished | 90 | 620 | 45 | 310 | 30 | 40 | 1/2 Thickness | |||
| 75 | 515 | 30 | 205 | 30 | 40 | >1/2 Thickness | ||||
CF3MN (316LN) CASTING APPLICATION: WWW.CASTINGQUALITY.COM
Pipe Fittings.
Industrial application
Marine fittings.
CF3MN (316LN) WELDABILITY: www.castingquality.com
Good characteristics suited to all standard methods. Grade 310L or SS318 electrodes generally recommended for fusion welding.
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Manufacture Process in Casting Quality: Sand Casting, Precision Lost Wax Investment Casting.
