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DUREHETE 1055

Alias

20CrMoVTiB4-10
1.7729

Chemistry

Base Element; Fe(Iron)

Element Min Max
B (Boron) 0.001 0.01%
C(Carbon) 0.17 0.23%
Cr(Chromium) 0.9 1.2%
Mn(Manganese) 0.35 0.75%
Mo(Molybdenum) 0.9 1.1%
P(Phosphorus) 0.02%
S(Sulphur) 0.02%
Si(Silicon) 0.1 0.35%
Ti(Titanium) 0.07 0.15%
V (Vanadium) 0.6 0.8%
Mechanical Properties Min Max
Ultimate Tensile Strength (UTS) 820 MPa 1000 MPa
0.2% Proof Stress 660 MPa
Elongation 27%
Gauge Length 5.65vSo
Izod Impact = Room Temp 27 Joules kJ/m^2
Hardness (Brinell) 241 HB 302 HB

Heat Treatment; Quenched and tempered condition (970-1010 degs C, oil quench or water quench + 660-730 degs C, for not less than 2h air cool). Unless otherwise stated.

Uses

Bolting
Used in Power generation and Process Plants components, including turbine fasteners, boiler support rods and fasteners.

Disclaimer:
Information is given for illustrative purposes only. Tachart accepts no responsibility for the accuracy of the data contained within or the use of the data by any other party.
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