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Steel Category:Steel for Boilers and Pressure Vessels ,Hydraulic Cylinder
Steel standard:DIN 17135 & DIN 2391
Steel grade:DIN 17135 St52
Dimension: Thickness 5-300mm, Width 1500-3500mm, Length
3000-12000mm
Application:St52 steel grade is one of grade in DIN 17135 , which
is non alloy and alloy steels with specified elevated temperature
properties. A St 52 grades are used above all for manufacturing
boilers, pressure vessels and pipes transporting hot liquids.
Supplementary Technology: HIC Test | NACE MR0175 | Z15 | Z25 | Z35
| S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9| S11 | S12 | S14 | S17
Grade | The Element Mac (%) | ||||||
C | Si | Mn | P | S | AI(MIN) | N | |
St52 | 0.20 | 0.50 | 0.9-1.70 | 0.03 | 0.025 | / | 0.05 |
Cr | Cu | Mo | Nb | Ni | Ti | V | |
0.30 | 0.30 | 0.08 | 0.005 | 0.50 | 0.03 | 0.10 |
St52 steel mechanical property: | |||||||
Grade | Thickness | Yield | Tensilmie | Elongation | Impact Energy(KV J) min | ||
mm | Min Mpa | Mpa | Min % | -20° | 0° | +20° | |
≤ 16 | 355 | 490-630 | 22 | 40 | 47 | 55 | |
St5255 | 16> to ≤35 | 355 | 490-630 | 22 | 40 | 47 | 55 |
35> to ≤50 | 345 | 490-630 | 22 | 40 | 47 | 55 | |
50> to ≤70 | 325 | 490-630 | 22 | 40 | 47 | 55 | |
70> to ≤100 | 315 | 470-610 | 21 | 40 | 47 | 55 | |
100> to ≤150 | 295 | 450-590 | 21 | 40 | 47 | 55 |