CN7M is one type 20 Chromium/29 Nickel with copper and molybdenum stainless steel grade which listed in ASTM A351, ASTM A743 and ASTM A744 standard. Casting UNS number is N08007, NOT J95150. WWW.CASTINGQUALITY.COM
Casting Methods in Casting Quality Industrial:
- Sand Casting
- Investment Casting (Lost Wax Casting, Precision Casting)
CN7M (UNS N08007) Equivalent Stainless Steel Grade:WW.CASTINGQUALITY.COM
N/A
Reference Casting Standards and others
ASTM A351 Standard Specification for Castings, Austenitic, for Pressure-Containing Parts:
ASTM A743 Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
ASTM A744 Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service:
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.
WWW.CASTINGQUALITY.COM
| Stainless Steel Grade | CN7M Chemical Composition / Physical Properties % (max, except where range is given) | |||||||||
| Standard | Grade | Carbon | Manganese | Silicon | Sulfur | Phosphorus | Chromium | Nickel | Mo | Copper |
| ASTM A743 | CN7M | 0.07 | 1.50 | 1.50 | 0.040 | 0.040 | 19.0-22.0 | 27.5-30.5 | 2.0-3.0 | 3.0-4.0 |
| ASTM A744 | CN7M | 0.07 | 1.50 | 1.50 | 0.040 | 0.040 | 19.0-22.0 | 27.5-30.5 | 2.0-3.0 | 3.0-4.0 |
| ASTM A351 | CN7M | 0.07 | 1.50 | 1.50 | 0.040 | 0.040 | 19.0-22.0 | 27.5-30.5 | 2.0-3.0 | 3.0-4.0 |
CN7M Heat treatment process: WWW.CASTINGQUALITY.COM
Heat to 2050°F [1120°C] minimum, hold for sufficient time to heat casting to temperature, quench in water or rapid cool by other means.
CN7M 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 | CN7M | N08007 | 62 | 425 | 25 | 170 | 35 | – | – | – |
| ASTM A744 | CN7M | N08007 | 62 | 425 | 25 | 170 | 35 | – | – | – |
| ASTM A351 | CN7M | N08007 | 62 | 425 | 25 | 170 | 35 | – | – | – |
CN7M Typical Application
- SUBSEA CONTROL LINES
- HEAT EXCHANGERS
- WATER SYSTEMS
- OFFSHORE PLATFORMS
- FIRE-FIGHTING SYSTEMS
SERVICE IN QINGDAO CASTING QUALITY INDUSTRIAL
- SAND CASTING
- INVESTMENT CASTING
- SHELL CASTING
- PERMANENT MOLD CASTING
- CNC MACHINING
