UNI 7355 Fe E 31 KR steel plate/sheet for gas cylinders and gas vessels
Fe E 31 KR steel plate/sheet, under UNI 7355 standard, we can regard Fe E 31 KR steel plate/sheet for gas cylinders and gas vessels.
Fe E 31 KR steel plate/sheet is one mainly of Steel for gas cylinders and gas vessels.UNI 7355 Fe E 31 KR 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.
Fe E 31 KR steel Chemical composition
| Symbol | Chemical composition | ||||
| C max | Si max | Mn max | P max | S max | |
| Fe E 31 KR | 0.20 | 0.55 | 1.50 | 0.040 | 0.040 |
Fe E 31 KR 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 | |||||
| Fe E 31 KR | 365 | 540 | 20 | NO.5 in rolling direction | 180° | Thickness x 1.0 Thickness x 1.5 | No.3 in rolling direction |
we are Fe E 31 KR steel,aslo can supply Fe E 27 KR,Fe E 24 KR,please contact us if you need
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