12Cr2MoWVTiB alloy seamless steel pipe

GangYan102 (12Cr2MoWVTiB) is a low-Hop Jinbei Shi Body heat-resistant steel, mainly tungsten and molybdenum composite solid solution strengthening, vanadium and titanium composite dispersion strengthening and hardening of trace boron, with excellent conditions of less than 600 ° C the steelmechanical properties, oxidation resistance and organizational stability.

Hot strength of steels at 620 ° C is better, even up to the level of some chromium-nickel austenitic steels, but the oxidation resistance of a sharp decline in its 3000h unit area weight of 242g / m2, the corrosion rate of 0 in recent years, the information is. 15mm / year maximum recommended use temperature has been reduced from 620 ° C to 600 ° C.

Chemical Compositions(%) of 12Cr2MoWVTiB:
Elements Data
Carbon 0.08-0.15
Silicon 0.45-0.75
Manganese 0.45-0.65
Phosphorus(max) ≤0.030
Sulfur(max) ≤0.030
Chromium 1.60-2.10
Molybdenum 0.50-0.65
Cuprum(max) ≤0.20
Nickel(max) ≤0.30
Vanadium(max) 0.28-0.42
Tungsten 0.30-0.55
Titanium 0.08-0.15
Niobium B 0.002-0.008
Mechanical Properties of 12Cr2MoWVTiB:
Yield Strength (Mpa) 540-735
Tensile Strength (Mpa) 345
Elongation (%) 18
The W.T. tolerance of 12Cr2MoWVTiB:
W.T.(S) Tolerance of W.T.
<3.5  +15%(+0.48mm min)
 -10%(+0.32mm min)
3.5-20 +15%,-10%
>20 D<219 ±10%
D≥219 +12.5%,-10%
  • ASTM A213 T11 Seamless alloy pipe
    ASTM A213 T11 Standard covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes.

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