Chemical Composition of SS Buttweld Fittings
| Grade | C | Si | S | Mo | Mn | P | Ni | Cr | V | Cu |
|---|---|---|---|---|---|---|---|---|---|---|
| A105 | 0.35 | 0.10–0.35 | 0.040 | 0.12 | 0.60–1.05 | 0.035 | 0.40 | 0.30 | 0.08 | 0.40 |
| Grade | C | Si | S | Mo | Ni | Cr | Cu | Mn | P | V |
|---|---|---|---|---|---|---|---|---|---|---|
| A350 LF2 | 0.30 | 0.15–0.30 | 0.040 | 0.12 | 0.02 | 0.30 | – | 0.60–1.35 | 0.035 | 0.08 |
| Chemical Composition of ASTM A694, Heat Analysis, % | |
|---|---|
| Carbon [C] | ≤0.30 |
| Manganese [Mn] | ≤1.60 |
| Phosphorus [P] | ≤0.025 |
| Sulfur [S] | ≤0.025 |
| Silicon [Si] | 0.15-0.35 |
Mechanical Properties of SS Butt weld Pipe Fittings
| Grade | Tensile Strength, Min (MPa) | Yield Strength, Min (MPa) | Elongation, min, % |
|---|---|---|---|
| ASTM A105 | 485 | 250 | 30 |
| Grade | Tensile Strength, Min (MPa) | Yield Strength, Min (MPa) | Elongation, min, % |
|---|---|---|---|
| A350 LF2 | 485-655 | 250 | 22 |
| ASTM A694 Grade | Tensile Strength min. | Yield Strength min. | Elongation min. | ||
|---|---|---|---|---|---|
| MPa | ksi | MPa | ksi | % | |
| F42 | 415 | 65 | 290 | 42 | 20 |
| F46 | 415 | 60 | 315 | 46 | 20 |
| F48 | 425 | 62 | 330 | 48 | 20 |
| F50 | 440 | 64 | 345 | 50 | 20 |
| F52 | 455 | 66 | 360 | 52 | 20 |
| F56 | 470 | 68 | 385 | 56 | 20 |
| F60 | 515 | 75 | 415 | 60 | 20 |
| F65 | 530 | 77 | 450 | 65 | 20 |
| F70 | 565 | 82 | 485 | 70 | 18 |