ASTM A209 T1 Alloy Steel, Chromium Molybdenum, T1
Categories: Metal; Ferrous Metal; Tool Steel; Cold Work Steel
Material Notes: 0.5Mo STEEL TUBES FOR BOILERS AND HEAT EXCHANGERS (STBA 12)

Creep and rupture data provided by NIMS
Key Words: DIN 17175 15Mo3; ISO 2604 II TS26; UNS K11522; JIS G3462 STBA 12
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Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 146146
Tensile Strength, Ultimate 380 MPa55100 psi
Tensile Strength, Yield 205 MPa29700 psi
Elongation at Break 30.0 %30.0 %
Rupture Strength  62.0 - 63.0 MPa
@Time 100000 hour,
Temperature 550 °C		8990 - 9140 psi
@Time 100000 hour,
Temperature 1020 °F
 63.0 - 76.0 MPa
@Time 100000 hour,
Temperature 525 °C		9140 - 11000 psi
@Time 100000 hour,
Temperature 977 °F
 84.0 - 129 MPa
@Time 100000 hour,
Temperature 500 °C		12200 - 18700 psi
@Time 100000 hour,
Temperature 932 °F
 169 - 248 MPa
@Time 100000 hour,
Temperature 475 °C		24500 - 36000 psi
@Time 100000 hour,
Temperature 887 °F
 233 - 312 MPa
@Time 100000 hour,
Temperature 450 °C		33800 - 45300 psi
@Time 100000 hour,
Temperature 842 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.10 - 0.20 %0.10 - 0.20 %
Iron, Fe 97.8 - 99.06 %97.8 - 99.06 %
Manganese, Mn 0.30 - 0.80 %0.30 - 0.80 %
Molybdenum, Mo 0.440 - 0.65 %0.440 - 0.65 %
Phosphorous, P <= 0.025 %<= 0.025 %
Silicon, Si 0.10 - 0.50 %0.10 - 0.50 %
Sulfur, S <= 0.025 %<= 0.025 %

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