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High-quality Stainless Steel 347 sheets, plates and coils are high-quality industrial materials that are known for their great mechanical strength and ability to resist corrosion. This grade is an austenitic stainless steel that is mostly made up of chromium and nickel and the addition of niobium (columbium) makes it even better. This particular alloying element makes things much more stable especially in environments with high temperatures. Top suppliers like Preston Pipes & Alloys always deliver 347 stainless steel products that meet strict industry standards. These products have great tensile strength, elongation and surface hardness. This makes them perfect for tough industrial uses where structural integrity and stress resistance are very important.
347 stainless steel plates and sheets are designed for long-term service in harsh conditions, and are very resistant to both corrosion and oxidation. As they can handle extreme heat and acidic conditions they are very useful in many fields, such as the oil and gas and petrochemical industries. These materials are also widely used in the chemical processing, power generation, pharmaceutical manufacturing, and aerospace industries. 347 stainless steel products are the best choice for important parts in refining, pulp and paper and food processing equipment as they last a long time and are very reliable.
SS 347 is versatile as it comes in a wide range of sizes and shapes to fit different project requirements. The thickness of plates usually ranges from 5 mm to 150 mm, the width from 1000 mm to 3500 mm, and the length from 1000 mm to 6000 mm. You can get these items in a variety of shapes such as coils, rolls, foils, plain sheets, chequered plates and strips. Advanced production methods ensure that the dimensions are exact and that the surface finishes can be soft or hard and made to fit the needs of each customer.
All 347 stainless steel products undergo strict testing and inspection during manufacturing to make sure they are of the best quality and safety. They come with mill test certificates (MTC) that meet EN 10204/3.2B standards which proves that they are safe for use in high-stakes situations. We also offer professional packaging that keeps the material safe while it is being shipped. This includes wooden boxes, plastic wrapping, and steel strapping. This dedication to quality means that every shipment of 347 stainless steel comes in perfect condition, and is ready to be used right away in industry.
| Specifications | ASTM A240 / ASME SA240 |
| Thickness | 4mm-100mm |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed,
hair line, sand blast, Brush, etching, etc |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
ASME SA 240 Type 347 Stainless Steel Perforated Sheet, WNR 1.4550 Foil With Custom Sizes and Thickness
| Materials | Grades | Price in Kg (₹) |
| Stainless Steel | 347 | 270-350 |
| 3/16" | 1/4" | 5/16" | 3/8" | 1/2" | 5/8" | 3/4" | 7/8" | 1" | 1 1/8" |
| 4.8mm | 6.3mm | 7.9mm | 9.5mm | 12.7mm | 15.9mm | 19mm | 22.2mm | 25.4mm | 28.6mm |
| 1 1/4" | 1 1/2" | 1 3/4" | 2" | 2 1/4" | 2 1/2" | 2 3/4" | 3" | 3 1/2" | 4" |
| 31.8mm | 38.1mm | 44.5mm | 50.8mm | 57.2mm | 63.5mm | 69.9mm | 76.2mm | 88.9mm | 101.6mm |
| Sizes of SS 347 Sheet | |
| MM | Inches |
| 3.18 | .125" |
| 6.35 | .250" |
| 76.2 | 3" |
| 22.2 | .875" |
| 38.1 | 1.500" |
| 3.40 | .134" |
| 7.92 | .312" |
| 19.1 | .750" |
| 31.8 | 1.250" |
| 3.96 | .156" |
| 9.53 | .375" |
| 15.9 | .625" |
| 28.6 | 1.125" |
| 44.5 | 1.750" |
| 12.7 | .500" |
| 25.4 | 1" |
| 4.75 | .187" |
| 50.8 | 2" |
| 63.5 | 2.500" |
| Exposure Time (Hour) | 1300°F | 1500°F | 1400°F | 1450°F | 1350°F |
| 500 | 0.045 | 0.221 | 0.108 | 0.108 | 0.065 |
| 1,000 | 0.067 | 0.338 | 0.166 | -- | 0.065 |
| 5,000 | -- | -- | 0.443 | -- | -- |
| 168 | 0.032 | 0.118 | 0.054 | 0.067 | 0.046 |
- NO.8
- NO.4
- Sand Blast
- Mirror Finish
- NO.1
- Brush
- Checkered
- 2B
- Embossed
- Etching
- BA
- 2D
- Brushed Finish
- 8K
- Hair Line
Stainless Steel 347 Sheet Metal
ASTM A240 Type 347 Perforated Sheet
347 Stainless Chequered Plate
Stainless 347 Plain Sheet
WNR 1.4550 Cold Rolled Sheet
UNS S34700 Hot Rolled Plate
SUS 347 Strip
AISI 347 Coil
347 SS Foil
INOX 347 Shim Sheet
SS 347 Shim Stock
Get Stainless Steel 347 Plate in every size & finish – Order Now!
Weight % (all values are maximum unless a range is otherwise indicated)
| Element | 347 |
| Chromium | 17.00 min. - 19.00 max. |
| Nickel | 9.00 min. - 13.00 max. |
| Carbon | 0.08 |
| Manganese | 2.00 |
| Phosphorus | 0.045 |
| Sulfur | 0.03 |
| Silicon | 0.75 |
| Columbium & Tantalum | 10 x (C + N) min. - 1.00 max. |
| Iron | Balance |
|
0.2% Offset |
Strength |
in 2 in. |
|
||
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 30,000 | 205 | 75,000 | 515 | 40 | 201 Brinell |
| Property | Imperial | Metric |
| Density | 0.288 lb/in³ | 7.96 g/cm³ |
| Specific Heat | 0.12 BTU/lb-°F (32–212°F) | 500 J/kg-K (0–100°C) |
| Modulus of Elasticity | 28.0 × 10⁶ psi | 193 GPa |
| Thermal Conductivity | 133 BTU/hr·ft²/ft·°F (at 200°F) | 16.3 W/m-K (at 100°C) |
| Melting Range | 2550–2635 °F | 1398–1446 °C |
| Electrical Resistivity | 72 µΩ·cm at 20°F | — |
| Grade | UNS | WERKSTOFF NR. | EN | JIS | GOST |
| 347 | S34700 | 1.4550 | X6CrNiNb18-10 | SUS 347 | 08Ch18N12B |
Get Cut to size Stainless Steel 347 Plate with Various Quality and Performance Inspection
- Material TC as per EN 10204 3.2, EN 10204 3.1 standards
- TC certified NACE MR0103, NACE MR0175
- Raw material TC
- QAP
- Heat treatment information
- Packing notes
- Carton box
- Wooden pallets
- Shrink wrapped
- Wooden crates
- Wooden box
- Steel Strapping
- Custom
- Flattening test
- PMI test
- Hardness test
- Ultrasonic test
- Radiography test
- Flaring test
- Eddy current test
- Impact test
- Bend test
- IGC test
- Macro and micro test
- Hydrostatic test
- Excellent Corrosion Resistance
- High-Temperature Strength
- Good Weldability & Fabrication
- Oxidation Resistance
- Good Machinability
- Plasma cutting
- Laser cutting
- Oxy propane flame cutting
Stainless Steel 347 plates are designed for high-temperature environments and maintain strength between 427°C and 816°C. They offer superior creep and stress rupture resistance compared to standard grades like SS 304. This prevents scaling, breakdown, and loss of structural integrity during prolonged exposure to extreme temperatures.
Niobium (columbium) prevents sensitization during welding and high-temperature service by forming stable niobium carbides. This stops chromium depletion at grain boundaries and protects the plate from intergranular corrosion, ensuring long-term durability in thermal and chemical environments.
SS 347 plates are widely used in aerospace components such as jet engine parts and exhaust manifolds, power generation systems including steam pipes and boiler tubes, oil refineries for catalytic cracking units, and chemical processing equipment operating at high temperatures.
SS 347 plates are available from thin sheets of 0.3 mm up to heavy plates measuring 150 mm in thickness. Standard widths range from 1000 mm to 2000 mm, with custom sizes available up to 3500 mm. Common lengths include 2000 mm, 2440 mm, and 6000 mm to meet fabrication needs.
SS 347 is stabilized with niobium, while SS 321 uses titanium. Both resist carbide precipitation, but SS 347 generally performs better in highly oxidizing environments and during welding. Niobium transfers more effectively across the weld arc, making SS 347 the preferred choice for complex, high-temperature fabrications.