K M D Steel And Tube is most dominant manufacturers, stockists, supplier & exporter for SS 347/347H Buttweld Fittings. Stainless Steel 347 is columbium balanced out austenitic Stainless Steel Buttweld Fittings with great general corrosion resistance & fairly better resistance in solid oxidizing conditions. The Stainless Steel Butt Weld Pipe Fittings is also advantageous for high temperature service because of its good mechanical properties. Stainless Steel 347H Buttweld Fittings is advantageous in application that require omission of the annealing process after welding. The Stainless Steel Buttweld Fittings is also advantageous for high temperature service because of its good mechanical properties. These Buttweld Fittings are made of best quality raw material and do match national & international quality standard. These Fittings are made in different shapes, size & dimensions and are delivered to customers as per their need & requirement. The prices for these Buttweld Fittings are completely market friendly & customer oriented.
| Grades | SS 347(UNS S34700), SS 347H (UNS S34709) |
|---|---|
| Werkstoff Nr | 347 / 1.4550, 347H / 1.4961 |
| Dimension Std. | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Specification | ASTM A403 / ASME SA403 |
| Size | ½” NB – 48” NB |
| Thickness | SCH 10 – SCH XXS |
| Type | Seamless / ERW / Welded / Fabricated |
| C | Cr | Mn | Ni | P | S | Si | Cb/Ta | |
|---|---|---|---|---|---|---|---|---|
| 347 | 0.08 max |
min: 17.0 max: 20.0 |
2.0 max |
min: 9.0 max: 13.0 |
0.04 max |
0.30 max |
0.75 max |
min:10x C max: 1.0 |
| 347H |
min: 0.04 max: 0.10 |
min: 17.0 max: 20.0 |
2.0 max | min: 9.0 max: 13.0 |
0.03 max | 0.30 max |
0.75 max |
min:10x C max: 1.0 |
| Grade | Tensile Strength ksi (MPa) min | Yield Strength 0.2% ksi offset ksi (MPa) min | Elongation (% in 50mm) min | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 347/347H |
75 (515) |
30 (205) |
40 | 201 | 95 |
| Density lbm/in3 |
Coefficient of Thermal Expansion (min/in)-°F |
Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | |
|---|---|---|---|---|---|
| at 68 °F | at 68 – 212°F | at 68 – 1832°F | 68-932°F | at 32 – 212°F | in tension (E) |
| 0.288 | 9.2 | 11.4 | 14.7 | 0.12 | 28 x 106 |