Prime Quality ASTM P355NH Pressure Vessel Steel Plate

Pressure Vessel Steel

EN 10028:3 P355NH

 

Chemical Requirements

(cast analysis, % by mass, maximum permitted unless indicated otherwise)

C Si Mn P S Al TOTAL N CR
0.18 0.50 1.10-1.70 0.025 0.015 0.020 min 0.012 0.30
CU MO NB NI TI V NB+TI+V  
0.30 0.08 0.05 0.50 0.03 0.10 0.12  

Tensile Requirements

PRODUCT THICKNESS YIELD STRENGTH

MPA

TENSILE STRENGTH

MPA

ELONGATION A%
up to 16 mm 355 min 490 to 630 22 min
16 to 40 mm 345 min 490 to 630 22 min
over40 to 60 mm 335 min 490 to 630 22 min
over 60 to 100 mm 315 min 470 to 610 21 min
over100 to 150 mm 305 min 460 to 600 21 min
over150 to 250 mm 295 min 450 to 590 21 min

 

Impact test values, average of three at temperature specified below

  -20°C 0°C +20°C
Transverse 30 J min 40 J min 50 J min
Longitudinal 45 J min 65 J min 75 J min

 

ELEVATED TEMPERATURE PROPERTIES  Yield strength in MPa (N/mm²)

THICKNESS 50°C 100°C 150°C 200°C 250°C 300°C 350°C 400°C
up to 16 mm 343 323 299 275 252 232 214 202
16 to 40 mm 334 314 291 267 245 225 208 196
over 40 to 60 mm 324 305 282 259 238 219 202 190
over 60 to 100 mm 305 287 265 244 224 206 190 179
over 100 to 150 mm 295 277 257 236 216 199 184 173
over 150 to 250 mm 285 268 249 228 209 192 178 167

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