CE3MN (SS2507) is super duplex stainless steel, with greater corrosive resistance than standard SS2205 and 18-8 Cr-Ni and 18-14-2/18-14-3 Cr-Ni-Mo stainless steel parts, mainly used for service in corrosive conditions. Casting UNS number is J93404.
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Casting Material Standard: ASTM A890 and ASTM A995 Grade 5A; Type 25Cr-7Ni-Mo-N; Casting UNS J93404; ACI CE3MN;
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Other similar Metal grades in different application:
ASTM A789 /ASTM A790/ASTM A276: Wrought UNS S32750; Wrought grade SS2507;
A182 F53 www.castingquality.com
EN: X2CrNiMoN 25-7-4; WNr 1.4410;
AFNOR Z5CND20.12M
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Casting Quality Industrial provide Sand Casting and Investment Casting for this super duplex stainless steel.
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- 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 CE3MN (SS2507) Description
ASTM A890/890M Standard Specification for Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application
ASTM A995/995M Standard Specification for Castings, Austenitic-Ferritic (Duplex) Stainless Steel, for Pressure-Containing Parts
CE3MN (SS2507) Chemical composition (nominal) %:
Carbon, max 0.03;
Manganese, max 1.50
Silicon, max 1.00
Phosphorus, max 0.04
Sulfur, max 0.04
Chromium 24.0-26.0
Nickel 6.0-8.0
Molybdenum 4.0-5.0
Nitrogen 0.10-0.30
%Cr+3.3 x %Mo+16 x %N≥40
CE3MN (SS2507) Mechanical Property:
Tensile Strength, min 100ksi [690Mpa];
Yield strength, min 75Ksi [515Mpa];
Elongation 18%
CE3MN Heat treatment process:
Heat to 2050°F [1120°C] minimum, hold for sufficient time to heat casting to temperature, furnace cool to 1910°F [1045°C] minimum, quench in water or rapid cool by other means.
CE3MN Hardness (not required): ≤HB300(HRC32)
Similar Steel material in other standards: www.castingquality.com
ASTM A182 Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
ASTM A240 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications1
ASTM A790 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
ASTM A789 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ASTM A479 Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
| Steel Grade | C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu | |
| ASTM A182 F53 | UNS S32750 | 0.03 | 1.2 | 0.035 | 0.02 | 0.8 | 6-8 | 24-26 | 3-5 | 0.24-0.32 | 0.5 |
| ASTM A240 | UNS S32750 Type 2507 | 0.03 | 1.2 | 0.035 | 0.02 | 0.8 | 6-8 | 24-26 | 3-5 | 0.24-0.32 | 0.5 |
| ASTM A790 ASTM A789 | UNS S32750 | 0.03 | 1.2 | 0.035 | 0.02 | 0.8 | 6-8 | 24-26 | 3-5 | 0.24-0.32 | 0.5 |
| ASTM A479 | UNS S32750 | 0.03 | 1.2 | 0.035 | 0.02 | 0.8 | 6-8 | 24-26 | 3-5 | 0.24-0.32 | 0.5 |
| Steel Grade | Tensile | Yield | Elongation | Hardness | |||||||
| ASTM A182 F53 | UNS S32750 | 116Ksi (800Mpa) | 80Ksi (550Mpa) | 15% | 310 HB | ||||||
| ASTM A240 | S32750 Type 2507 | 116Ksi (795Mpa) | 80Ksi (550Mpa) | 15% | 310 HB | ||||||
| ASTM A790 ASTM A789 ASTMA479 | UNS S32750 | 116Ksi (800Mpa) | 80Ksi (550Mpa) | 15% | 300 HB (32 HRC) | ||||||
CE3MN is also named as SS2507 in market. It’s a good super duplex stainless steel for offshore piping systems, couplings, centrifuge, dewatering equipment, pump, valves and, pulp digesters
CE3MN Typical Application
- SUBSEA CONTROL LINES
- HEAT EXCHANGES
- WATER SYSTEMS
- OFFSHORE PLATFORMS
- FIRE-FIGHTING SYSTEMS
