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SA387 GR.21 CL1 Pressure vessel steel plate
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SA387 GR.21 CL1 Pressure vessel steel plate
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 Mingding Supply Chain Management Service Co., Ltd. was established in 2013, focusing on the production, processing and trade of metal materials. We have a professional team to provide quality service, we sincerely welcome customers at home and abroad to visit our company for guidance and long-term cooperation.
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Our main products include high quality carbon steel, stainless steel products,galvanized steel products, aluminum and copper. We can also provide cutting, punching, bending, polishing, shearing, wire drawing and other related service.
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Our company is set production processing and trade as one. The company has the most advanced production equipment and automatic control system, to ensure reliable product quality and sufficient supply capacity. Our main products are stainless steel, silicon steel, galvanized steel, carbon steel, aluminum products and other series. Applicable to engineering, coal mining, shipping, aviation, boiler, machinery, military and other fields. We sincerely welcome customers from all over the world to visit our company to discuss long-term cooperation.
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FAQ
How do you package the product?
The inner layer is covered with waterproof paper, packed in iron and secured by fumigated wooden brackets. It can effectively protect products from corrosion in the process of sea sample transportation.
Are the products inspected before shipment?
Of course. All our products go through strict quality tests before they are packed. Those that fail will be destroyed.
Can I visit your factory?
Of course. We welcome customers from all over the world to visit our factory.
What certifications have your products passed?
We have ISO 9001, SGS, EWC and other certifications.
Can you provide samples?
Of course, we can send samples all over the world. Our samples are free of charge, but the customer needs to bear the Courier charge
What is the loading port?
Normally, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. You can choose other ports according to your needs.
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