DIN17155 is the outdated German specification for pressure vessel steels and boiler quality plates. DIN17155 specification (along with the BS standard) has now been superseded by EN10028. DIN17155 standard covers steel grades such as HI, HII, 17Mn4, 19Mn6, 15Mo3, 13CrMo44, 10CrMo910, etc. 

DIN17155 pressure vessel steel plates chemical composition:

DIN17155 C Si Mn P S Al Cr Cu Ni Mo Nb Ti V
HI 0.16 0.35 0.40/1.20 0.03 0.025 0.02 0.3 0.3 0.3 0.08 0.01 0.03 0.02
HII 0.2 0.35 0.50-1.30 0.035 0.03 0.02 0.25 0.3 0.3 0.1 0.01 0.03 0.03
17Mn4 0.14-0.20 0.4 0.90-1.40 0.035 0.03 0.02 0.25 0.3 0.3 0.1 0.01 0.03 0.03
19Mn6 0.2 0.5 0.90-1.70 0.03 0.025 0.02 0.3 0.3 0.3 0.08 0.05 0.03 0.1
15Mo3 0.12-0.20 0.10-0.35 0.40-0.90 0.035 0.03   0.25 0.3 0.3 0.25-0.35      
13CrMo4 4 0.08-0.18 0.10-0.35 0.40-0.10 0.035 0.03   0.70-1.10 0.3   0.4-0.6      
10CrMo9-10 0.06-0.15 0.5 0.40-0.70 0.035 0.03   2.00-2.50 0.3   0.9-1.0      

DIN17155 pressure vessel steel plates mechanical property:

DIN17155 Steel number Yield strength (Mpa) Tensile strength (Mpa) Elongation (%)
Thickness (mm) ≤16 16<T≤40 40<T≤60 60<T≤100 100<T≤150 ≤60 60<T≤100 100<T≤150 ≤60 60<T≤150
HI 1.0345 235 225 215 200 185 360-480 360-480 350-480 24 23
HII 1.0425 265 255 245 215 200 410-530 410-530 400-530 22 21
17Mn4 1.0481 290 285 280 255 230 460-580 450-570 440-570 21 20
19Mn6 1.0473 355 345 335 315 295 510-650 490-630 480-630 20 20
15Mo3 1.5415 275 270 260 240 220 440-590 430-580 420-570 20 19
13CrMo4-4 1.7335 300 295 295 275 255 440-590 430-580 420-570 20 19
10CrMo9-10 1.7380 310 300 290 270 250 480-630 460-630 460-630 18 17

DIN 17155 pressure vessel steel equivalent grades:

DIN 17155 Material # EN 10028-2 NFA 36-205 UNI 5869 BS 1501 UNE 36087 ASTM JIS G3115
HI 1.0345 P235GH A 37 CP Fe 360 - 1KW 161 Gr. 360 / 164 Gr. 360 A 37 RCI A 285 Gr. C-A 414 Gr. C / A 516 Gr. 55 SPV 24
HII 1.0425 P265GH A 42 CP Fe 410 - 1KW 161 Gr. 400 / 164 Gr. 400 / 224 Gr. 400 A 42 RCI A 414 Gr. E / A 516 Gr. 60  
17Mn4 1.0481 P295GH A 48 CP Fe 460 - 1KW 224 Gr. 490 A 47 RCI A 414 Gr. F / A 516 Gr. 65 SPV 32
19Mn6 1.0473 P355GH A 52 CP Fe 510 - 1KW   A 52 RCI A 414 Gr. G SPV 36
15Mo3 1.5415 16Mo3 15 D3 15 Mo 3 1503 - 243 B 16 Mo 3 A 204 Gr. B  
13CrMo 4 4 1.7335 13CrMo4-5 15 CD 4-05 14 CrMo 4.5 620 Gr. 27 14 CrMo 4.5 A 387 Gr. 12  
10CrMo 9 10 1.738 10CrMo9-10 10 CD 9.10   622 Gr. 31   A 387 Gr. 22  

DIN17155 pressure vessel steel plates are used in chemical processing, hydro-carbon processing, heat exchangers, valves manufacturing, pumps manufacturing, petrochemical plants, nuclear power projects, Oil & Gas equipment manufacturing and so on fields.

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