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ASTM A387 Grade 11 Class 2 Pressure Vessel Steel PLATE
1.Chrome Mole Plate
ASTM A387
ASTM A387 Grade 5 Class 2 | ASTM A387 Grade 9 Class 2 | ASTM A387 Grade 11 Class 2
ASTM A387 Grade 12 Class 2 | ASTM A387 Grade 22 Class 2 | ASTM A387 Grade 91 Class 2
2.ASTM A387 Grade 11 Class 2 chrome moly steel plates from China United Iron And Steel Co,.Ltd. As a quality chrome moly steel, A387 Grade 11 Class 2 is used in a variety of industries and is highly effective, particularly in the oil, gas and chemical industry, where liquids and gases are often stored at high temperature (see pressure vessels).
The higher levels of chromium also provide excellent corrosion and oxidation resistance.
3.Please refer to our technical specifications below for ASTM A387 Grade 11 Class 2... Equivalents
|
BS |
EN |
ASTM/ASME |
DIN |
|
621 B |
––– |
A387-11-2 |
––– |
4.Specifications
Chromium & Molybdenum content (according to the ASTM specification):
|
Designation |
Nominal Chromium |
Nominal Molybdenum |
|
A387 Grade 11 |
1.25% |
0.50% |
5.Tensile Requirements for Class 2 Plates
|
Designation: |
Requirement: |
Grade 11 |
|
A387 Grade 11 |
Tensile strength, ksi [MPa] |
75 to 100 [515 to 690] |
|
|
Yield strength, min, ksi [MPa]/(0.2% offset) |
43 [310] |
|
|
Elongation in 8 in. [200mm], min % |
18 |
|
|
Elongation in 2 in. [50mm], min, % |
22 |
|
|
Reduction of area, min % |
––– |
6.Chemical Requirements
|
Element |
|
Chemical Composition (%) inc. Grade UNS No. |
|
|
|
Grade 11 (UNS: K11789) |
|
Carbon: |
Heat Analysis: |
0.05 - 0.17 |
|
|
Product Analysis: |
0.04 - 0.17 |
|
Manganese: |
Heat Analysis: |
0.40 - 0.65 |
|
|
Product Analysis: |
0.35 - 0.73 |
|
Phosphorus: |
Heat Analysis: |
0.035 |
|
|
Product Analysis: |
0.035 |
|
Sulphur (max): |
Heat Analysis: |
0.035 |
|
|
Product Analysis: |
0.035 |
|
Silicon: |
Heat Analysis: |
0.50 - 0.80 |
|
|
Product Analysis: |
0.44 - 0.86 |
|
Chromium: |
Heat Analysis: |
1.00 - 1.50 |
|
|
Product Analysis: |
0.94 - 1.56 |
|
Molybdenum: |
Heat Analysis: |
0.45 - 0.65 |
|
|
Product Analysis: |
0.45 - 0.70 |
7.Tension Test Requirements:
Material shall be tested using a test specimen will confirm to the tensile requirements as outlined in Table 2.
8.Other requirements:
The following requirements and testing procedures (which are not mandatory) are considered suitable for Chrome Molybdenum steel:
Vacuum treatment
Product Analysis
Additional Tension Test
Charpy V-Notch Impact Test
Drop Weight Test
High Temperature Tension Test
Ultrasonic Examination
Magnetic Particle Examination
9.To find out more about our's services and ASTM A387 Grade 11 Class 2 steel plates which we can supply directly to you, Please contact us.
