ISO 11960 Seamless Steel Pipes
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DIN N80 Type Q materials is consistent regarding the chemical composition, mechanical aspects. It goes through various heat treatments. During the heat treatment it is treated by tempering and quenching. Due to the internal pressure and collapsing strength of N80-Q is higher.
DIN EN ISO 11960 Casings, Tubings, Threads and Line Pipe is as rolled, normalized, normalized and tempered, sub critically stress relieved, or sub critically age hardened or quenched and tempered.
ISO 11960 api 5ct casing and tubing for wells in petroleum and natural gas industries. Besides casing and tubing, it also consist pup joints, coupling material, coupling stock, and accessory materials, and establishes requirements for three product specification levels (PSL-1, PSL-2, and PSL-3).
en iso 11960 n-80 Drill Pipe is been widely applicable to construction, shipbuilding, petroleum, smelting, aviation, food, paper, electric power, medical equipment, boilers, chemical industry, heat exchangers, metallurgy.
ISO 11960 seamless thick-walled tubes or mechanical tubes include high strength, low weight, durability, ductility and resistance to corrosion. It is all know, offers great strength though it is light in weight. In fact, the ratio of strength to weight for it is the lowest than any other building material.
ISO 11960 Seamless Steel Pipes
ISO 11960 api 5ct casing and tubing
EN ISO 11960 n-80 Drill Pipe
| Element | Min | Max | Similar |
|---|---|---|---|
| S | - | 0.0300 | - |
| P | - | 0.0300 | - |
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 481 (≥) | 759 (≥) | 44 | 11 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 444 |
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.44 | - | |||
| 395 | 618 | - | 12.3 | 124 | - | ||
| 235 | - | 22 | 33.2 | 243 | 412 |
| Outer diameter and wall Thickness | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Execution | Size Range | OD Tolerance | Wall tolerance | ||||||
| Hot-rolled Tube | OD – 80 mmOD > 80 mmWall < 12 mmWall - 12 mm | ± 0.4 mm± 0.5 % of OD | ± 0.7 mm± (5 % x wallthickness + 0.1 mm | ||||||
| Hot-rolled peeled tube | All sizesWall < 12 mmWall - 12 mm | + 0.25/- 0 mm | ± 0.8 mm± (5 % x wall thickness+ 0.2 mm) | ||||||
| Cold Worked tubecold-rolled or cold-drawn | OD < 40 mmOD 40 - 80 mmOD > 80 Wall Thickness< 6 mm Wall Thickness6 - 8 mm Wall Thickness > 8 | + 0.30/- 0 mm*+ 0.35/- 0 mm*+ 0.40/- 0 mm* | ± 0.30 mm± 0.35 mm± 0.40 mm | ||||||
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