Size range: |
Square tubes O.D. :20-20 to 500-500 W.T.:1-24mm L:max12000mm |
Rectangle tubes O.D. :20-30 to 400-600 W.T.:1-24mm L:max12000mm |
Chemical Reuirement |
Element | GradeA, B and D | Grade C |
Heat Analysis | Product Analysis | Heat Analysis | Product Analysis |
Carbon, max | 0.26 | 0.3 | 0.23 | 0.27 |
Manganese,max | 1.35 | 1.40 | 1.35 | 1.4 |
Phosphorus,max | 0.035 | 0.045 | 0.035 | 0.045 |
Sulfur,max | 0.035 | 0.045 | 0.035 | 0.045 |
Copper,min | 0.2 | 0.18 | 0.2 | 0.18 |
Tensil requirements |
Round Structural Tubing |
GradeA | Grade B | Grade C | Grade D |
Tensil strengths,min,psi(Mpa) | 45 (310) | 58(400) | 62(425) | 58(400) |
Yield strength,min,psi(Mpa) | 33(230) | 42(290) | 46(315) | 36(250) |
Elongation in 2 in.(50mm) min,% | 25 | 23 | 21 | 23 |
Shaped Structural Tubing |
GradeA | Grade B | Grade C | Grade D |
Tensil strengths,min,psi(Mpa) | 45 (310) | 58(400) | 62(425) | 58 |
Yield strength,min,psi(Mpa) | 39(270) | 46(315) | 50(315) | 36(250) |
Elongation in 2 in.(50mm) min,% | 25 | 23 | 21 | 23 |