Alleima® 8R61 Tube and pipe, seamless

Datasheet updated

2022-06-30 13:09
(supersedes all previous editions)

Alleima® 8R61 is an austenitic chromium-nickel steel alloyed with molybdenum for high-temperature applications.

Standards

  • EN Number: 1.4918
  • EN Name: X6CrNiMo17-13-2
  • W.Nr.: X 6 CrNiMo 17 13
  • DIN: 1.4919

Product standards

Seamless tube and pipe:

  • EN 10216-5
  • DIN 17459

Chemical composition (nominal)

Chemical composition (nominal) %
C Si Mn P S Cr Ni Mo
0.06 0.5 1.4 ≤0.035 ≤0.015 17.5 12 2.2

Chemical composition (nominal) %

C Si Mn P
S
Cr Ni Mo
0.06 0.5 1.4 ≤0.035 ≤0.015 17.5 12 2.2

Mechanical properties

At 20°C (68°F)

Proof strength Tensile strength Elong.
Rp0.2a) Rm Ab)
MPa ksi MPa ksi %
≥205 ≥30 490-690 71-100 ≥35

1 MPa = 1 N/mm2
a) Rp0.2 and Rp1.0 correspond to 0.2% offset and 1.0% offset yield strength, respectively.
b) longitudinal

At high temperatures

Metric units
Temperature
Proof strength
Rp0.2
°C MPa
min.
50 184
100 177
150 162
200 147
250 137
300 127
350 122
400 118
450 113
500 108
550
103
Creep-rupture strength
Temperature 10000h 100000h
°C °F MPa approx. ksi approx. MPa approx. ksi approx.
550 1020 250 36.3 175 25.4
560 1040 235 34.1 164 23.8
570 1058 220 31.9 153 22.2
580 1076 205 19.7 142 20.6
590 1094 190 27.6 131 19.0
600 1112 175 25.4 120 17.4
610 1130 160 23.2 109 15.8
620 1148 147 21.3 98 14.2
630 1166 135 19.6 88 12.8
640 1184 123 17.8 78 11.3
650 1202 111 16.1 69 10.0
660 1220 100 14.5 60 8.7
670 1238 91 13.2 52 7.5
680 1256 82 11.9 46 6.7
690 1274 73 10.6 40 5.8
700 1292 65 9.4 34 4.9

Welding

The weldability of Alleima® 8R61 is good. Welding must be carried out without preheating and subsequent heat treatment is normally not required. Suitable methods of fusion welding are manual metal-arc welding (MMA/SMAW) and gas-shielded arc welding, with the TIG/GTAW method as first choice.

For Alleima® 8R61, heat input of <2.0 kJ/mm and interpass temperature of <150°C (300°F) are recommended.

Recommended filler metals

TIG/GTAW or MIG/GMAW welding

ISO 14343 S 19 12 3 H / AWS A5.9 ER316H

MMA/SMAW welding

ISO 3581 E 19 12 2 R / AWS A5.4 E316H-17

Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Alleima materials.