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C | Si | Mn | P | S | Cr | Ni | Mo | B |
---|---|---|---|---|---|---|---|---|
≤0.030 | 0.4 | 1.7 | ≤0.030 | ≤0.015 | 17.5 | 12.5 | 2.2 | 0.002 |
Others
N=0.12
t 20°C (68°F)
Proof strength | Tensile strength | Elong. | ||||
---|---|---|---|---|---|---|
Rp0.21) | Rp1.01) | Rm | A2) | |||
MPa | ksi | MPa | ksi | MPa | ksi | % |
≥260 | ≥38 | ≥300 | ≥44 | 550-750 | 80-109 | ≥35 |
1 MPa = N/mm2
1) Rp0.2 and Rp1.0 correspond to 0.2% offset and 1.0% offset yield strength, respectively.
2) Based on L0 = 5.65 √S0 where L0 is the original gauge length and S0 the original cross-section area.
Impact strength
Due to its austenitic microstructure, Sandvik 3R69 has very good impact strength both at room temperature and at cryogenic temperatures.
Tests have demonstrated that the steel fulfils the requirements (60 J (44 ft-lb) at -196oC (-320 oF)) according to the European standards EN 13445-2 (UFPV-2) and EN 10216-5.
At high temperatures
Temperature | Proof strength | |
---|---|---|
Rp0.2 | Rp1.0 | |
°C | MPa | MPa |
min. | min. | |
50 | 234 | 273 |
100 | 205 | 240 |
150 | 187 | 220 |
200 | 170 | 200 |
250 | 159 | 189 |
300 | 148 | 178 |
350 | 141 | 171 |
400 | 134 | 164 |
450 | 130 | 160 |
500 | 127 | 157 |
550 | 124 | 154 |
Temperature | Proof strength | |
---|---|---|
Rp0.2 | Rp1.0 | |
°F | ksi | ksi |
min. | min. | |
100 | 36.1 | 41.2 |
200 | 30.3 | 35.4 |
300 | 27.2 | 32.0 |
400 | 24.5 | 28.9 |
500 | 22.7 | 27.1 |
600 | 21.0 | 25.5 |
700 | 20.0 | 24.4 |
800 | 19.1 | 23.5 |
900 | 18.6 | 22.9 |
1000 | 18.1 | 22.4 |
Temperature | 10 000 h | 100 000 h | |||
---|---|---|---|---|---|
°C | °F | MPa | ksi | MPa | ksi |
approx. | approx. | approx. | approx. | ||
550 | 1020 | 290 | 42.1 | 220 | 31.9 |
560 | 1040 | 272 | 39.4 | 202 | 29.3 |
570 | 1060 | 254 | 36.8 | 186 | 30.0 |
580 | 1075 | 237 | 34.4 | 170 | 24.7 |
590 | 1095 | 220 | 31.9 | 155 | 22.5 |
600 | 1110 | 205 | 29.7 | 141 | 20.4 |
610 | 1130 | 190 | 27.6 | 127 | 18.4 |
620 | 1150 | 174 | 25.2 | 114 | 16.5 |
630 | 1165 | 162 | 23.5 | 102 | 14.8 |
640 | 1185 | 148 | 21.5 | 92 | 13.3 |
650 | 1200 | 135 | 19.6 | 83 | 12.0 |
660 | 1220 | 122 | 17.7 | 75 | 10.9 |
670 | 1240 | 112 | 16.2 | 68 | 9.9 |
680 | 1255 | 102 | 14.8 | 61 | 8.8 |
690 | 1275 | 93 | 13.5 | 56 | 8.1 |
700 | 1290 | 84 | 12.2 | 52 | 7.5 |
710 | 1310 | 78 | 11.3 | 48 | 7.0 |
720 | 1330 | 71 | 10.3 | 45 | 6.5 |
730 | 1345 | 65 | 9.4 | 41 | 5.9 |
740 | 1365 | 58 | 8.4 | 37 | 5.4 |
750 | 1380 | 52 | 7.5 | 34 | 4.9 |
760 | 1400 | 48 | 7.0 | 31 | 4.5 |
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