UNS S31277 Super Austenitic Stainless Steel Plate 27-7Mo SS Plate ASTM A240
Brand Name:DELTA
Certification:ISO
Model Number:UNS S31277
Minimum Order Quantity:500 kgs
Delivery Time:5 - 12 days based on the quantity
Payment Terms:L/C, T/T, Western Union
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UNS S31277 Super Austenitic Stainless Steel Plate 27-7Mo SS Plate
ASTM A240
| Products | Stainless Steel Plate |
| Thickness | 0.4 - 40.0mm |
| Width | 1000mm 1219mm 1500mm 1800mm 2000mm or other width as request |
| Length | 2000mm 2438mm 3000mm 6000mm or other length as request |
| Grade | 201 202 301 304 304L 304H 309S 310S 316L 316Ti 317L 321 347 409L 410 420 430 431 434 436L 439 441 443 444 2205 2507 904L 600 625 800 825 718 253MA 254SMO.etc |
| Service | Laser Cutting, Surface processing, bending |
| Brand | TISCO BAOSTEEL POSCO LISCO JISCO |
| Standard | ASTM JIS GB DIN EN BS |
| Certificate | ISO MTC C/O F/E |
| Packing | Wooden pallets and waterproof paper |
| Deliver time | 5 - 15 days |
| Loading port | Shanghai Port |
INCOLOY alloys are super alloys that have nickel as the base metal. Apart from nickel, chromium and iron are the other major components of this alloy. Addition of metals such as molybdenum, copper, etc., enhances characteristics such as strength and corrosion resistance.
INCOLOY alloy 27-7MO is an advanced super-austenitic stainless steel containing 7% of molybdenum. When the content of molybdenum is increased the corrosion resistance in many environments is enhanced. The combination of nickel, nitrogen and molybdenum increase the corrosion resistance range to reducing media, pitting, crevice, acids, stress cracking and caustic corrosion. This alloy is also capable of resisting corrosion by sea water and chemicals in the pulp, paper, oil and gas industries. The standard forms in which this alloy is available are plate, sheet, rod, bar, tube and pipe.
This datasheet will look into the chemical composition, properties and applications of INCOLOY 27-7MO.
Chemical Composition of S31277 Stainless Steel
The chemical composition of INCOLOY alloy 27-7MO is given in the following table.
| Element | Content (%) |
|---|---|
| Iron, Fe | 35.54-46.2 |
| Nickel, Ni | 26-28 |
| Chromium, Cr | 20.5-23 |
| Molybdenum, Mo | 6.5-8 |
| Manganese, Mn | ≤3 |
| Others | Remainder |
Physical Properties of S31277 Stainless Steel
The following table discusses the physical properties of INCOLOY alloy 27-7MO.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.02 gm/cm3 | 0.290 lb/in3 |
Mechanical Properties of S31277 Stainless Steel
The mechanical properties of INCOLOY alloy 27-7MO are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength(annealed) | 827 MPa | 120 ksi |
| Yield strength(annealed) | 414 MPa | 60 ksi |
| Elongation at Break( in 2 in 50 mm) | 50% | 50% |
| Poissons Ratio | 0.29 | 0.29 |
| Modulus of Elasticity | 138 GPa | 20000 ksi |
| Hardness, Rockwell B | 95 | 95 |
| Hardness, Vickers (0% cold work) | 225 | 225 |
Standard of S31277 Stainless Steel Products
Some of the designations used to denote INCOLOY alloy 27-7MO are listed below:
- UNS N08926
- ASTM A 479
- ASTM A240
- ASTM A 213
- ASTM A 249
- ASTM A312
- ASTM A182
- ASME SA 182.
Machinability
Machining characteristics of this INCOLOY alloy 27-7MO is on the same lines as that of other austenitic alloys. This alloy is machined under annealed conditions.
Welding
INCOLOY alloy 27-7MO can be welded by gas metal arc welding, gas tungsten arc welding, shielded arc welding, plasma arc welding and submerged metal arc welding. The filler metal and electrodes are usually made of INCONEL alloy.
Forming
This alloy can be formed under hot or cold conditions.
Hot working
INCOLOY alloy 27-7MO can be hot worked at temperature ranges of 980-1150°C (1800-2100°F).
Cold Working
Cold rolling may be done on the alloy after annealing.
Annealing
INCOLOY alloy 27-7MO should be annealed at temperatures greater than 1121-1175°C (2050- 2150°F).
Applications of UNS S31277 Stainless Steel
The INCOLOY alloy 27-7MO is used in the following applications:
- Pollution control
- Power, marine and chemical industries
- Pulp, paper, oil and gas industries.
UNS S31277 Super Austenitic Stainless Steel Plate 27-7Mo SS Plate ASTM A240
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