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Mechanical properties for stainless steels to BS EN 10217-7

Introduction

BS EN 10217-7 2005 is the material standard for stainless steels for welded tubes for pressure purposes. This new standard was first published in February 2005.

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The data given is not intended to replace that shown in individual standards to which reference should always be made.

BS EN 10217-7 mechanical property tables

Tensile and Impact Properties
 Tensile properties at RT Impact properties
Steel grade Proof Strength Tensile strength Elongation Minimum average of 3 Charpy (J)
Rp0.2 Rp1.0 Rm A min (%) at RT  at -sub-zero temperature1
Steel name Steel number MPa MPa MPa long trans long trans trans
Austenitic steels
X2CrNi18-9 1.4307 180 215 470-670 40 35 100 60 60
X2CrNi19-11 1.4306 180 215 460-680 40 35 100 60 60
X2CrNiN18-10 1.4311 270 305 550-760 35 30 100 60 60
X5CrNi18-10 1.4301 195 230 500-700 40 35 100 60 60
X6CrNiTi18-10 1.4541 200 235 500-730 35 30 100 60 60
X6CrNiNb18-10 1.4550 205 240 510-740 35 30 100 60 60
X2CrNiMo17-12-2 1.4404 190 225 490-690 40 30 100 60 60
X5CrNiMo17-12-2 1.4401 205 240 510-710 40 30 100 60 60
XCrNiMoTi17-12-2 1.4571 210 245 500-730 35 30 100 60 60
X2CrNiMo17-12-3 1.4432 190 225 490-690 40 30 100 60 60
X2CrNiMoN17-13-3 1.4429 295 330 580-800 35 30 100 60 60
X3CrNiMo17-13-3 1.4436 205 240 510-710 40 30 100 60 60
X2CrNiMo18-14-3 1.4435 190 225 490-690 40 30 100 60 60
X2CrNiMoN17-13-5 1.4439 285 315 580-800 35 30 100 60 60
X2CrNiMo18-15-4 1.4438 220 250 490-690 35 30 100 60 60
X1NiCrMoCu31-27-4 1.4563 215 245 500-750 40 35 120 90 60
X1CrNiMoCu25-20-5 1.4539 220 250 520-720 35 30 120 90 60
X1CrNiMoCuN20-18-7 1.4547 300 340 650-850 35 30 100 60 60
X1NiCrMoCuN25-20-7 1.4529 300 340 600-800 40 40 120 90 60
Duplex – Austenitic ferritic steels
X2CrNiN23-4 1.4362 400 —- 600-820 25 25 120 90 40
X2CrNiMoN22-5-3 1.4462 450 —- 700-920 25 20 120 90 40
X2CrNiMoN25-7-4 1.4410 550 —- 800-1000 20 20 100 100 40
X2CrNiMoCuWN25-7-4 1.4501 550 —- 800-1000 20 20 100 100 40

1.For austenitic steels the sub-zero test temperature is -196 deg C. For duplex steels it is – 40 deg C.

Elevated temperature 0.2 %proof strength values for austenitic steels
Steel grade Rp0.2 min MPa at a temperature of (deg C)
Steel name Steel number 50 100 150 200 250 300 350 400 450 500 550
X2CrNi18-9 1.4307 165 147 132 118 108 100 94 89 85 81 80
X2CrNi19-11 1.4306 165 147 132 118 108 100 94 89 85 81 80
X2CrNiN18-10 1.4311 255 205 175 157 145 136 130 125 121 119 118
X5CrNi18-10 1.4301 180 157 142 127 118 110 104 98 95 92 90
X6CrNiTi18-10 1.4541 190 176 167 157 147 136 130 125 121 119 118
X6CrNiNb18-10 1.4550 195 177 167 157 147 136 130 125 121 119 118
X2CrNiMo17-12-2 1.4404 182 166 152 137 127 118 113 108 103 100 98
X5CrNiMo17-12-2 1.4401 193 177 162 147 137 127 120 115 112 110 108
XCrNiMoTi17-12-2 1.4571 202 185 177 167 157 145 140 135 131 129 127
X2CrNiMo17-12-3 1.4432 182 166 152 137 127 118 113 108 103 100 98
X2CrNiMoN17-13-3 1.4429 260 211 185 167 155 145 140 135 131 129 127
X3CrNiMo17-13-3 1.4436 195 177 162 147 137 127 120 115 112 110 108
X2CrNiMo18-14-3 1.4435 180 165 150 137 127 119 113 108 103 100 98
X2CrNiMoN17-13-5 1.4439 260 225 200 185 175 165 155 150   —   —   —
X2CrNiMo18-15-4 1.4438 200 172 157 147 137 127 120 115 112 110 108
X1NiCrMoCu31-27-4 1.4563 210 190 175 160 155 150 145 135 125 120 115
X1CrNiMoCu25-20-5 1.4539 216 205 190 175 160 145 135 125 115 110 105
X1CrNiMoCuN20-18-7 1.4547 267 230 205 190 180 170 165 160 153 148   —
X2CrNiMoCuWN25-7-4 1.4529 270 230 210 190 180 170 165 160 130 120 105
Elevated temperature 1.0% proof strength values for austenitic steels
Steel grade Rp1.0 min MPa at a temperature of (deg C)
Steel name Steel number 50 100 150 200 250 300 350 400 450 500 550
X2CrNi18-9 1.4307 200 181 162 147 137 127 121 116 112 109 108
X2CrNi19-11 1.4306 200 181 162 147 137 127 121 116 112 109 108
X2CrNiN18-10 1.4311 282 240 210 187 175 167 161 156 152 149 147
X5CrNi18-10 1.4301 218 191 172 157 145 135 129 125 122 120 120
X6CrNiTi18-10 1.4541 222 208 196 186 177 167 161 156 152 149 147
X6CrNiNb18-10 1.4550 232 211 196 186 177 167 161 156 152 149 147
X2CrNiMo17-12-2 1.4404 217 199 181 167 157 145 139 135 130 128 127
X5CrNiMo17-12-2 1.4401 230 211 191 177 167 156 150 144 141 139 137
XCrNiMoTi17-12-2 1.4571 232 218 206 196 186 175 169 164 160 158 157
X2CrNiMo17-12-3 1.4432 217 199 181 167 157 145 139 135 130 128 127
X2CrNiMoN17-13-3 1.4429 290 246 218 198 183 175 169 164 160 158 157
X3CrNiMo17-13-3 1.4436 228 211 191 177 167 156 150 144 141 139 137
X2CrNiMo18-14-3 1.4435 217 200 180 165 153 145 139 135 130 128 127
X2CrNiMoN17-13-5 1.4439 290 255 230 210 200 190 180 175   —   —   —
X2CrNiMo18-15-4 1.4438 232 206 188 177 167 156 148 144 140 138 136
X1NiCrMoCu31-27-4 1.4563 240 220 205 190 185 180 175 165 155 150 145
X1CrNiMoCu25-20-5 1.4539 244 235 220 205 190 175 165 155 145 140 135
X1CrNiMoCuN20-18-7 1.4547 306 270 245 225 212 200 195 190 184 180   —
X2CrNiMoCuWN25-7-4 1.4529 310 270 245 225 215 205 195 190 160 150 135

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