UNS: S34700
EN-DIN: 1.4550
347 Stainless Steel Alloy
347 Stainless Steel Strip, Coil & Sheet
- AMS 5512
- ASTM A269
- ASTM A240
- ASTM A479
- AMS 5680
Our wide capabilities give us a unique ability to supply all of your 347 stainless steel strip, coil, and sheet needs.
description
347 Stainless Steel Alloy Description:
347 alloys are stabilized stainless steels which offer as their main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). 347 alloys are stabilized by the addition of columbium.
application
347 Stainless Steel Alloy Uses & Applications:
- Petrochemical
- Aerospace exhaust stack
- Food service
- Heat exchangers
- Pharmaceutical applications
Nominal Composition
| C | Mn | P | S | Si | Cr | Ni | Nb (Cb) | N | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|
| MIN | – | – | – | – | – | 17.0 | 9.0 | 10xC | – | – |
| MAX | 0.08 | 2.0 | 0.045 | 0.030 | 1.00 | 19.0 | 12.0 | 1.00 | 0.10 | BAL |
Physical Properties
| At 70°F | At 20°C | |
|---|---|---|
| Density | 0.288 lb./in³ | 7.96 g/cm³ |
| Modulus of Elasticity (E) | 28.0 x 10³ ksi | 193 x 10³MPa |
| Coefficient of Expansion | 9.2 x 10⁻⁶ microinches/in.-°F (70-600°F) | 16.6 μm/m-°C (20-300°C) |
| Electrical Resistivity | 28.4 μ ohm.in | 72 μ ohm.cm |
| Thermal Conductivity | 9.5 Btu-in./ft.²hr.-°F | 16.3 W/m-K |
Typical Room Temperature Mechanical Properties
Typical Mechanical Properties
Typical mechanical properties are based on ATI source, ASTM A240
| Condition | Tensile Strength Min (UTS) | 0.2% YS Min | Elongation% in 2” Min (50.8 mm) | Hardness Rockwell |
|---|---|---|---|---|
| Annealed | 93 ksi (640 MPa) | 37 ksi (250 MPa) | 45% | 84 HRBW |
Limitation of Liability and Disclaimer of Warranty:
- The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only. It is not intended for engineering or design.
- Applications may be discussed, however, Combined Metals Company, LLC, does not recommend or endorse any material for any particular end use or application.
- The data included in this data sheet are typical values and may vary.
- Combined Metals Company, LLC, makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.
In no event will Combined Metals Company, LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.
Combined Metals: Who We Are
Combined Metals Company (formerly Combined Metals of Chicago ) processes and distributes over 75 alloys of precision strip and wire. Our precision rolling mills, drawing mills, and extensive network of independent North American service centers, support thousands of customers in many industries including Aerospace, Automotive, Chemical, Consumer, Defense, Electronics, Medical, Oil/Gas, and Power Generation, worldwide.
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