DIN 17155 I DIN 17155 Steel Plate
astm pressure vessel Product Introduction
Normalizing is a process that is used to reduce the internal stresses in the material. The material is heated to around 900°C and then cooled in air. Normalizing increases the strength, hardness and yield strength of DIN 17155 I DIN 17155.When increased ductility is required, Annealing is used. The process involves heating the material to around 850°C and cooling it slowly in air. This causes the material to become softer and increases its ductility.
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DIN 17155 I DIN 17155 Mechanical Properties
The main mechanical properties are elasticity, plasticity, stiffness, aging sensitivity, strength, hardness, impact toughness, fatigue strength and fracture toughness.
Elasticity: Metal material deforms when it is subjected to external force. When the external force is removed, it can restore its original shape.
Plasticity: The ability of DIN 17155 I DIN 17155 to produce permanent deformation without causing damage under external forces.
Stiffness: The ability of DIN 17155 I DIN 17155 to resist elastic deformation under stress.
Strength: The ability of DIN 17155 I DIN 17155 to resist deformation and fracture under external forces.
Hardness: The ability of DIN 17155 I DIN 17155 to resist the pressure of a harder object into it.
Impact toughness: The ability of DIN 17155 I DIN 17155 to resist fracture under impact loading.
Fatigue strength: The maximum stress that does not cause fracture when DIN 17155 I DIN 17155 is subjected to numerous repeated or alternating loads.
Fracture toughness: a performance index used to reflect DIN 17155 I DIN 17155 is ability to resist crack instability and expansion
| 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) |
|---|---|---|---|---|---|---|
| 174 (≥) | 322 (≥) | 11 | 11 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 414 |
DIN 17155 I DIN 17155 Physical Properties
The DIN 17155 I DIN 17155 material physical properties shall comply with the values given in the following table.
| 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 |
|---|---|---|---|---|---|---|---|
| 14 | - | - | 0.44 | - | |||
| 259 | 465 | - | 43.3 | 111 | - | ||
| 977 | - | 32 | 14.2 | 432 | 334 |
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