Chrome Moly Pressure Vessel Grade ASME SA387 Grade 22 Class 2 Steel Plate Sheet
Henan Longpeng Marine Metal Materials Co, LTD is a comprehensive enterprise located in Zhengzhou city, Henan province in north of China, we are specialized on hot rolled steel plate, Thickness from 5.0mm to 650mm, width from 1000mm to 4500mm.
Specification: Chrome Moly Plate ASTM A387
Our Grades :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
As a quality chrome moly steel, A387 steel plate 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
The higher levels of chromium also provide excellent corrosion and oxidation resistance.
Please refer to our technical specifications below for ASTM A387 Grade 11 Class 2
Chromium & Molybdenum content (according to the ASTM specification):
| Designation | Nominal Chromium Content (%) | Nominal Molybdenum Content (%) |
| A387 Grade 11 | 1.25% | 0.50% |
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 % | ––– |
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 |
Tension Test Requirements:
Material shall be tested using a test specimen will confirm to the tensile requirements as outlined in Table 2.
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
Details of delivery condition
1.Production Std: ASTM,ASME,JIS,DIN,BS,EN,
2. Delivery State: HR,TMCP, Q&T, N, T, N&T,Z15,Z25,Z35, Ultrasonic test, Sharp V-notch impact test, HIC test ,etc
3. Dimension Thickness:8~650mm; Width:1200~4200mm,; Length:3000~18800mm
4. Trade Terms: FOB, CFR, CIF
5. Payment Terms: T/T, Irrevocable at sight L/C
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