347 347H Stainless steel bar
Short Description:
347 and 347H are both austenitic stainless steel grades that are stabilized with columbium (niobium) and are commonly used in high-temperature applications. The “H” in 347H stands for “high carbon,” indicating that it has a higher carbon content compared to standard 347 stainless steel.
| Specifications of 347 347H Stainless steel bar: |
| Grade | 347, 347H |
| Standard | ASTM A276 |
| Diameter |
4 mm to 500mm |
| Length | 5.8M,6M & Required Length |
| Surface |
Black, Bright, Polished, Rough Turned, NO.4 Finish, Matt finish |
| Form |
Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forged etc. |
| TYPE OF 1.4550 Stainless steel bar: |
 347 347H stainless steel bar |
 904l ss bar |
 304L round bar |
 431 stainless steel bar |
 stainless steel bar ASTM A276 |
 304 stainless steel round bar |
| EQUIVALENT GRADES OF 1.4961 Stainless steel bar: |
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
| 347 | 1.4550 | S34700 | SUS347 |
08Ch18N12B |
X6CrNiNb18-10 |
| 347H | 1.4961 | S34709 | SUS347H | - | X6CrNiNb18-12 |
| CHEMICAL COMPOSITION OF S34700 Stainless steel bar: |
| Grade | C | Mn | Si | S | P | Fe | Ni | Cr |
| 347 | 0.08 max | 2.00max | 1.0 max | 0.030max | 0.045 max | 62.74 min |
9-12max |
17.00-19.00 |
| 347H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.030 max | 0.045 max | 63.72 min | 9-12max | 17.00 – 19.00 |
| 347 347H Stainless steel bar Mechanical Properties |
| Density | Melting Point | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
40 |
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| Hongwan Alloy Materials's Quality Assurance (including both Destructive and Non-Destructive) : |
1. Visual Dimension Test
2. Mechanical examining like tensile, Elongation and reduction of area.
3. Ultrasonic test
4. Chemical examination analysis
5. Hardness test
6. Pitting protection test
7. Penetrant Test
8. Intergranular Corrosion Testing
9. Impact analysis
10. Metallography Experimental Test
| 347 347H Stainless steel bar UT Test: |
| Packing: |
1. Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging.
2. Hongwan Alloy Materials’s pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as
