ASTM A387 Grade 91 is in the standard ASTM A-387/A-387M . A387 Grade 91 is a kind of Cr-Mo-alloy steel plates material used to fabric high temperature pressure vessels. A387 have ten grades or levels. They are : grade 2,grade 12,grade 11,grade 22,grade 22L,grade 21,grade 21L,grade 5,grade 9,grade 91.Because of the good property , A387GR11CL1 , A387GR11CL2 , A387GR22CL1 , A387GR22CL2 , A387GR12CL1, A387GR12CL2 are widely used in the high temperature vessels industry.
Key words:A387 Grade 91,ASTM A387 Grade 91,A387 Grade 91 steel plates,A387 Grade 91 Cr-Mo-alloy steel plates, ASTM A387 Grade 91 steel plates for fabric high temperature pressure vessels.
ASTM A387 Grade 91 steel chemical composition(%) :
|
Element |
C |
Mn |
P |
S |
Si |
Cr |
||||||||||
|
Analyse |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
||||
|
Min |
0.08 |
0.06 |
0.30 |
0.25 |
- |
- |
- |
- |
0.20 |
0.18 |
8.00 |
7.90 |
||||
|
Max |
0.12 |
0.15 |
0.60 |
0.66 |
0.020 |
0.025 |
0.010 |
0.012 |
0.50 |
0.56 |
9.50 |
9.60 |
||||
|
Element |
Ni |
V |
Nb |
N |
Al |
Mo |
||||||||||
|
Analyse |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
||||
|
Min |
- |
- |
0.18 |
0.16 |
0.06 |
0.05 |
0.03 |
0.025 |
- |
- |
0.85 |
0.80 |
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|
Max |
0.40 |
0.43 |
0.25 |
0.27 |
0.10 |
0.11 |
0.07 |
0.08 |
0.40 |
0.50 |
1.05 |
1.10 |
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ASTM A387 Grade 91 steel Mechanical Properties :
|
Grade |
ASTM A 387 Grade 91 |
|
Tensile Strength (MPa) |
585-760MPa |
|
Yield Strength (MPa) |
415MPa |
|
Elongation (%) |
18 % |
ASTM A387 Grade 91 steel chief application :
ASTM A387 Grade 91 pressure vessel steel is widely used in petroleum, chemical industry, power station, boiler, etc, used to make the reactor, heat exchanger, separator, spherical tank, liquefied gas, nuclear reactor pressure vessel, boiler steam drum steam, liquefied petroleum, hydropower station, high pressure pipe.
Shanghai Katalor is a professional ASTM A387 and ASTM A387 steel stockist and supplier. We can supply different product type and steel grades like grade 2, grade 12, grade 11, grade 22, grade 22L, grade 21, grade 21L, grade 5 , grade 9 , grade 91 steel.If you have any need of ASTM A387 or ASTM A387 steel please do not hesitate to contact us .
Related link :ASTM A387 Grade 2 ,ASTM A387 Grade 12 ,ASTM A387 Grade 22 ,ASTM A387 Grade 11 , ASTM A387 Grade 22L , ASTM A387 Grade 21 , ASTM A387 Grade 21L , ASTM A387 Grade 5 , ASTM A387 Grade 9 , ASTM A387 Grade 91,A387 Grade 11 CL1,A387 Grade 22 CL1,A387 Grade 11 CL2,A387 Grade 22 CL2,ASTM A387
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