1 DIN17172 STE320.7 seamless steel pipe
2 SMLS Line Pipes for Projects in all Grades
3 Pipes for High Pressure Lines
4 Special Seamless Pipes and Tubes for Pressure Service at High / Low
5 Temperatures
6 Pipes for Power, Chemical, Petrochemical and Refining Projects
7 Standards: API, ASTM, DIN, ISO, NFA, EN, EEMUA, DNV and for specific project
8 requirement specifications
9 Sizes - Diameters up to 28”
10 Wall thicknesses up to 4”
11 Pipe Ends - Plain or Beveled Bare or with Coatings and Linings
DIN17172 STE320.7 seamless steel pipe chemical composition
| Steel grade | Type of deoxidation (RR.specially killed) | Chemical composition in % by wt | |||||
| Symbol | Material number | C | Si | Mn | P | S | |
| max | max | ||||||
| StE 320.7 | 1.0409 | RR | 0.22 | 0.45 | 0.7-1.3 | 0.040 | 0.035 |
DIN17172 STE320.7 seamless steel pipe mechanical property
| Steel grade | Yield Point | Tensile strength
N/mm2 |
Elongation | Impact energy At 0°C | ||
| Symbol | Material number | OD up to 500 | OD over 500 | |||
| N/mm2 min | % min | / min | ||||
| StE 320.7 | 1.0409 | 320 | 460 to 580 | 21 | 47 | 27 |
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