TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
Add to Cart
Applications: for Boilers,Superheaters,Steam linepipes of boilers
Size range: O.D.:12.7-127mm W.T.:1-15mm L: according to customer requirement
| Steel Grade and Chemical Compositions: | |||||
| Grade | C | Mn | P | S | Si |
| A-1 | ≤0.27 | ≤0.93 | ≤0.035 | ≤0.035 | ≥0.10 |
| C | ≤0.35 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥0.10 |
Mechanical properties:
| Grade | Yield Point Mpa(ksi) | Tensile Strength Mpa(ksi) | Elongation |
| A-1 | ≥255(37) | ≥415(60) | ≥30% |
| C | ≥275(40) | ≥485(70) | ≥30% |
| Tolerance for OD and WT(SA-450/SA-450M) | |||||
| OD in(mm) | + | - | WT in(mm) | + | - |
| ＜1''(25.4) | 0.10 | 0.10 | ≤1.1/2''(38.1) | 20% | 0 |
| 1''～1.1''(25.4～38.1) | 0.15 | 0.15 | ＞1.1/2''(38.2) | 22% | 0 |
| ＞1.1/2''～＜2''(38.1～50.8 | 0.20 | 0.20 | |||
| 2''～＜2.1/2''(50.8～63.5) | 0.25 | 0.25 | |||
| 2.1/2''～＜3''(63.5～76.2) | 0.30 | 0.30 | |||
| 3''～＜4''(76.2～101.6) | 0.38 | 0.38 | |||
| 4''～＜7.1/2''(101.6～190.5) | 0.38 | 0.64 | |||
| ＞7.1/2～9''(190.5～228.6) | 0.38 | 1.14 | |||
Surface Condition:
Pickling or shot blasting, Passivated, Black Phosphating.
Tests and Inspection:
Flattening Test
Flaring Test
Hardness Test
Hydrostatic or Nondestruction Electric Test ( Eddy Current and Ultrasonic Testing)
Reference Documents:
ASTM A450/A450M Specification for General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes