Steel plate for for Boiler Pressure Vessel DIN 17155 17 Mn 4
17 Mn 4 steel plate, DIN 17155 17 Mn 4 steel plates is a kind of material for boiler and pressure vessel steel. DIN 17155 17 Mn 4 steel plates is characterised by a minimum yield strength of 220 - 295 MPa and by good weldability,so 17 Mn 4 steel is mainly used to for manufacturing boilers, pressure vessels and pipes transporting hot liquids.the following are DIN 17155 17 Mn 4 steel plate's Chemical composition and mechanical properties.
17 Mn 4 Chemical analysis -% by mass* (max)
Grade | C. % | Mn.% | S. | N | Cu | Nb | Ti. | Si. | P. | AL | Cr. | Mo. | Ni | Vi |
17 Mn 4 | 0.08-0.2 | 0.90-1.50 | 0.015 | 0.012 | 0.30 | 0.020 | 0.03 | 0.40 | 0.025 | 0.020 | 0.30 | 0.08 | 0.30 | 0.02 |
17 Mn 4 Mechanical properties
Grade | Type | Thickness mm | Yield strength Mpa(min) | Tensile Strength MPa | Elongation % (min) | Impact Energy (KVJ) (min) | ||
-20° | 0° | +20 | ||||||
17 Mn 4 | Normalized | ≤16 16>to≤40 40>to≤60 60>to≤100 100>to≤150 150>to≤250 | 295 | 460-580 | 21 | 27 | 34 | 40 |
290 | 460-580 | 21 | 27 | 34 | 40 | |||
285 | 460-580 | 21 | 27 | 34 | 40 | |||
260 | 460-580 | 21 | 27 | 34 | 40 | |||
235 | 440-570 | 21 | 27 | 34 | 40 | |||
220 | 430-570 | 21 | 27 | 34 | 40 | |||
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