1.25Cr-0.5Mo-Si

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1.25Cr-0.5Mo-Si, 1.25Cr-0.5Mo-Si Steel held on stock and delivered throughout the Global Prompt service given by our well informed sales team.



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Technical Data

ASTM A387 GRADE 11 1.25Cr-0.5Mo-Si steel PLATES FOR BOILERS AND PRESSURE VESSELS (SCMV 3 NT)
Categories: Metal; Ferrous Metal; ASTM steel

Material Notes: Creep and rupture data provided by NIMS

Key Words: UNS K11789; JIS G4109 SCMV 3

Mechanical Properties Metric English Comments
Tensile Strength, Ultimate  515 - 690 MPa 74700 - 100000 psi
Tensile Strength, Yield  310 MPa 45000 psi
Elongation at Break  22.0 % 22.0 %
Rupture Strength 37.0 - 48.0 MPa
@Temperature 575 °C,
Time 100000 hour
5370 - 6960 psi
@Temperature 1070 °F,
Time 100000 hour
  56.0 - 77.0 MPa
@Temperature 550 °C,
Time 100000 hour
8120 - 11200 psi
@Temperature 1020 °F,
Time 100000 hour
  77.0 - 98.0 MPa
@Temperature 525 °C,
Time 100000 hour
11200 - 14200 psi
@Temperature 977 °F,
Time 100000 hour
  112 - 169 MPa
@Temperature 500 °C,
Time 100000 hour
16200 - 24500 psi
@Temperature 932 °F,
Time 100000 hour
 
Component Elements Properties Metric English Comments
Carbon, C  0.050 - 0.17 % 0.050 - 0.17 %
Chromium, Cr  1.0 - 1.50 % 1.0 - 1.50 %
Iron, Fe  96.16 - 97.6 % 96.16 - 97.6 %
Manganese, Mn  0.40 - 0.65 % 0.40 - 0.65 %
Molybdenum, Mo  0.45 - 0.65 % 0.45 - 0.65 %
Phosphorous, P  <= 0.035 % <= 0.035 %
Silicon, Si  0.50 - 0.80 % 0.50 - 0.80 %
Sulfur, S  <= 0.035 % <= 0.035 %

 


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NIMS012 / 77529
 

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