Shandong Jeno Steel Group Co., Ltd.
SA387 GR.21 CL1 Pressure vessel steel plate
Classification :
Keywords: Handheld refractometer
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SA387 GR.21 CL1 Pressure vessel steel plate Descriptions:
ASTM A387 Gr 21 CL 1 is a chromium molybdenum alloy steel plate intended primarily for welded boiler and pressure vessels designed of elevated temperature service. The Cr content 3.00 % and the Mo content 1.00 %. Each grade except grade 21L, Grade 22L, Grade 91 and Grade 911 is available in two classes of tensile strength levels.ASTM A387 GRADE 5 Class 1 - Alloy steelASTM A387 GRADE 5 Class 1 A high quality ASTM A387 GRADE 5 Class 1 or chrome molybdenum alloy steel plate intended specifically for use in weldable carbon steel pressure vessels at elevated temperatures. Added molybdenum gives the material greater temperature tensile strength and the chromium provides improved corrosion resistance.ASTM A387 Grade 11 Class 1 steel plates for pressure somalia a387 grade 5 class1ASTM A387 Grade 11 Class 1 is in the standard ASTMA-387 SA-387M .A387 Grade 11Class 1 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.
Chemical Composition and Mechanical Properties:
| SA387 Gr.21L CL.1 Chemical Composition | |||||||
| Grade | The Element Max (%) | ||||||
| C | Si | Mn | P | S | Cr | Mo | |
| SA387 Gr.21L Cl.1 | 0.12 | 0.50 | 0.25-0.66 | 0.035 | 0.035 | 2.63-3.37 | 0.85-1.15 |
| Grade | SA387 Gr.21L CL.1 Mechanical Property | |||
| Thickness | Yield | Tensile | Elongation | |
| SA387 Gr.21L Cl.1 | mm | Min Mpa | Mpa | Min % |
| t≦50 | 205 | 415-585 | 18 | |
| 50<t≦200 | - | - | - | |
Refered Standards for ASME SA387 Alloy Steel Plate
ASME
- SA20/A20M: General requirements for pressure vessel plates.
- SA370: Test specification for mechanical properties of steel
- SA435/A435M: For straight-beam ultrasonic examination of steel plates
- SA577/A577M: For ultrasonic angle beam examination of steel plates
- SA578/A578M: For straight beam UT examination of rolled steel plates in special applications
- SA1017/A1017M: Specification for pressure vessle plates of alloy steel, chromium-molybdenum-tungsten
AWS Specification
- A5.5/A5.5M: Low alloy steel electrodes for shield metal arc welding.
- A5.23/A5.23M: Low alloy steel electrodes for fulxes for submerged arc welding.
- A5.28/A5.28M: For gas shielded arc welding
- A5.29/A5.29M: For flux cored arc welding.
Heat Treatment for SA387 Chrom Moly Alloy Steel Plate
Chrome moly alloy steel plate under ASME SA387 shall be killed steel, with thermally treated either by annealing, normarlizing and tempering. Or in case agreed by buyer, accelerated cooling from the austenitizing temperature by air blasting or liquid quenching, followed by tempering, minimum tempering temperatures shall be as below table:
| Grade | Temperature, °F [°C] |
| 2, 12 and 11 | 1150 [620] |
| 22, 22L, 21, 21L and 9 | 1250 [675] |
| 5 | 1300 [705] |
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Shandong Jienuo Metal Products Co., Ltd. has a registered capital of 250 million yuan, more than 635 employees, 100 million yuan of property/plant equipment, covering an area of more than 300 acres, and has passed the international quality management system, energy management system, occupational health and safety management system and other standards. The company has advanced production equipment, superb technical force, excellent management and technical personnel, and strong financial strength to provide a strong guarantee for the production of high-quality, sophisticated and cutting-edge products.
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The company has ISO9001 certification, EU CE10219 system certification, and Swiss SGS quality standard certification. In the future, the company will be a comprehensive modern enterprise featuring international trade and modern logistics as its development direction. Work together to make unremitting efforts for the green future of the steel industry in China and the world.
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Widely used in prefabricated steel structure buildings, glass curtain wall engineering, steel structure engineering, large venues, airport construction, highways, roads, decorative guardrails, tower crane manufacturing, photovoltaic projects, greenhouse agricultural shanty buildings, bridge manufacturing, ships, automobile manufacturing, machinery In many fields such as manufacturing, it has been well received in major construction projects.
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