Description
HDT supply huge qty of Cr-Mo Alloy seamless pipe and tube , and export more than 35 countries . Our alloy seamless tube be width used in boiler and heating.
HDT controls the entire manufacturing process from raw material to finished products, Inspection points are localed in the manufacturing process to ensure all products meet all requirements. In such quality control system, faults are detected at the earliest possible stage of the production process in order to eliminate the risk of rejection at final inspection. We have made continuous efforts to reduce the problem throughout total quality assurance system including traceability control, HDT not only inspect by ourself , also through TPI like BV, SGS, DNV, ABS, MOODY, IBR, so that today the quality of our productsis clearly recognized by our client.
Chemistry Composition:
C, % | Mn, % | P, % | S, % |
0.06-0.18 | 0.27-0.63 | 0.035 max | 0.035 max |
Mechanical Properties:
Tensile Strength, MPa | Yield Strength, MPa | Elongation, % | Hardness, HRB |
325 min | 180 min | 35 min | 72 max |
Outside Diameter & Tolerance
Outside Diameter, mm | Tolerance, mm |
3.2≤OD<25.4 | ±0.10 |
25.4≤OD≤38.1 | ±0.15 |
38.1<OD<50.8 | ±0.20 |
50.8≤OD<63.5 | ±0.25 |
63.5≤OD<76.2 | ±0.30 |
76.2 | ±0.38 |
Wall thickness & Tolerance
Outside Diamter, mm | Tolerance, % |
3.2≤OD<38.1 | +20/-0 |
38.1≤OD≤76.2 | +22/-0 |
Application Industries