| Item |
Specification |
| Product |
Seamless Cold-Drawn Boiler Steel Tube |
| Material |
Carbon Steel / Low-Alloy Cr-Mo Steel |
| Manufacturing Process |
Seamless, Cold Drawn / Cold Finished |
| ASTM Standards |
ASTM A192, ASTM A210, ASTM A213 |
| EN Standard |
EN 10216-2 |
| JIS Standards |
JIS G3461, JIS G3462 |
| GB Standard |
GB/T 5310 |
| GOST Standards |
GOST 8733 / GOST 8734 for cold-deformed seamless tubing, subject to project specification |
| Representative Grades |
A192, A210 A-1, A210 C, A213 T11, A213 T22 |
| Outside Diameter |
Typically 12.7-177.8 mm; other dimensions by agreement |
| Wall Thickness |
Typically 1.2-25.4 mm; selected according to pressure design |
| Length |
1-12 m, customizable |
| OD Tolerance |
According to the selected material standard; tighter cold-drawn tolerances available by agreement |
| Wall Thickness Tolerance |
According to the applicable ASTM, EN, JIS, GB or GOST requirement |
| Straightness |
Typically ≤1.0 mm/m when specified for panel fabrication |
| Ends |
Plain cut, deburred, beveled if required |
| Surface |
Black, pickled, oiled or bright cold-drawn surface |
| Heat Treatment |
Annealed, normalized or otherwise heat treated as required by the applicable grade and standard |
| Testing |
Tensile test, flattening/flaring test where applicable, hydrostatic or permitted nondestructive examination |
| Inspection Documents |
Mill Test Certificate / EN 10204 3.1 when specified |
| Further Processing |
Bending, fin welding, panel welding, cutting and fabrication according to drawing |