EN 10120 P355NB steel plate/sheet for gas cylinders and gas vessels
P355NB steel plate/sheet, under EN 10120 standard, we can regard P355NB steel plate/sheet for gas cylinders and gas vessels.
P355NB steel plate/sheet is one mainly of Steel for gas cylinders and gas vessels.EN 10120 P355NB steel is grade for gas cylinders in SG255,SG295,SG325 and SG365,which all with the different tensile strength of 400MPa,440MPa,490MPa and 540MPa.
P355NB steel Chemical composition
| Symbol | Chemical composition | ||||
| C max | Si max | Mn max | P max | S max | |
| P355 NB | 0.20 | 0.55 | 1.50 | 0.040 | 0.040 |
P355NB steel Mechanical properties
| Symbol | Yield point or proof stress N/mm2 (min) | Tensile strength N/mm2 min | Elongation % min | Tensile test piece | Bendability | ||
| Bending Angle | Inside radius | Test piece | |||||
| P355 NB | 365 | 540 | 20 | NO.5 in rolling direction | 180° | Thickness x 1.0 Thickness x 1.5 | No.3 in rolling direction |
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