Alloy Plate A387 Gr11 C1 ASTM A387 Gr.11 Class 2 4” Thick Plate 50”
x 40”
ASTM A387 GRADE 11 Class 2
As a pressure vessel grade steel for use in elevated temperature
service, is used in a variety of industries and is highly
effective, particularly in the oil, gas and petrochemical industry,
where liquids and gases are often stored at higher temperatures.
The higher levels of chromium also provide excellent corrosion and
oxidation resistance, which is a must in sour gas applications.
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 | ––– |
Specifications for ASTM A387 Grade 11 Alloy Steel Plates
Chromium & Molybdenum content (according to the ASME
specification)
Designation | Nominal Chromium Content (%) | Nominal Molybdenum Content (%) |
A387 Grade 11 | 1.25% | 0.50% |
Tensile Requirements for ASTM A387 Grade 11 Alloy Steel Plates
Class 1 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 % | ––– |
Chemical Requirements for ASTM A387 Grade 11 Alloy Steel Plates
Element | | Chemical Composition (%) |
| | A387 Grade 11 |
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 |