SA387/A387 Covers chromium Molybdenum (Cr-Mo) alloy Steel Plate intended for Elevated Temperature and Hydrogen Service Pressure Vessels. For Use in Boilers and pressure vessels.
We GNEE are Major Stockiest,supplier, Exporters of ASTM A387 /ASME SA387 Plates in Grade 5, Grade 11, Grade 12, Grade 2, Grade 91.
What is the difference between Class 1 and Class 2 SA387/A387 hot-rolled plate?
Here is the information if you looking erence between Class 1 and C 1 and Class 2 n ASTM A387/ASME SA387 G SA387 Grade 5, Grade 9, Grade e 12, Grade 22 plat 22 etc.The chemical composition remains same in both Class i and Class II icl and but the only difference is is in mechanical properties, whi which mentioned in in table below.
Mechanical Properties of ASTM SA387/A387 pressure vessel plate
| ASTM A387 / ASME SA387 | A387 Grade 5 | A387 Grade 9 | A387 Grade 11 | A387 Grade 12 | A387 Grade 22 |
|---|---|---|---|---|---|
| Performance Indicators | Class 1 | Class 2 | Class 1 | Class 2 | Class 1 | Class 2 | Class 1 | Class 2 | Class 1 | Class 2 |
| Tensile Strength (ksi) | 60-85 | 75-100 | 60-85 | 75-100 | 60-85 | 70-90 | 50-80 | 65-85 | 60-85 | 75-100 |
| Tensile Strength (MPa) | 415-585 | 515-690 | 415-585 | 515-690 | 415-585 | 485-620 | 380-550 | 450-585 | 415-585 | 515-690 |
| Yield Strength (ksi) | 30 | 45 | 30 | 45 | 35 | 45 | 33 | 40 | 30 | 45 |
| Yield Strength (MPa) | 205 | 310 | 205 | 310 | 240 | 310 | 230 | 275 | 205 | 310 |
| Elongation in 200mm (%) | – | – | – | – | 19 | 18 | 18 | 19 | – | – |
| Elongation in 50mm (%) | 18 | 18 | 18 | 18 | 22 | 22 | 22 | 22 | 18 | 18 |
| Reduction of Area (%) | 45 | 45 | 45 | 45 | – | – | – | – | 45 | 45 |
FAQ
Q: What is SA 387 material?
A: A high quality 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.
Q: What is SA387 grade 11 equivalent to?
A: Sa 387 Gr 11 Equivalent Material is the ASME SA387 in the US markets with the European Union having modules in 13CrMoSi5-5 grade. The Sa 387 Gr 11 Cl 2 Equivalent Material is the SA387-11-2 of the ASME and ASTM standard.
Q: What is the difference between SA387 Grade 11 Class 1 and Class 2?
A: The difference between SA 387 Grade 11 Class 1 and Class 2 Plate lies in their mechanical properties. However, they both have the same chemical composition. The tensile strength and yield strength of class 2 material is higher than that of class 1, whereas the elongation for class 1 is higher compared to class 2.
Q: What is the temperature range for SA 387 GR 11?
A: In the lower end of the temperature range SA 387 Gr 11 (1150 °F min tempering temperature) , and SA 387 Gr 22 (1250 °F min tempering temperature) are used. These grades can be specified in either class 1 or 2 and can also be provided in the Normalized & Tempered or Quenched and Tempered.
Q: What is SA 387 GR 9 material?
A: SA 387 GR 9 is a chromium-molybdenum alloy steel widely used in high-temperature applications such as pressure vessels and power generation equipment and it provides excellent resistance to oxidation and creep, making it ideal for long-term service at elevated temperatures.
Q: What is the chemical composition of SA 387 GR 22?
A: 22 CL. 2 plate chemical composition includes Chromium (Cr) 2%, Molybdenum (Mo) 1%, Manganese (Mn) 0.5%, Silicon (Si) 0.5%, Phosphorus (P) 0.03%, Sulfur (S) 0.03%, and Carbon (C) 0.1%.
Q: What is the equivalent material of SA 387 GR 12?
A: Sa 387 Gr 12 Equivalent Material can be classified as Asme SA 387 for the USA, for the European Union, the equivalent grade to this material is EN 13CrMo4-5. In Germany and England, the equivalent grades are DIN 13CRM044 and BS 620B, respectively. Apart from this, the equivalent grade for France is AFNOR 36206 15CD2.
In addition to container plates like A387/SA387, we offer a wider selection of steel plates listed in the table below that meet practical requirements: high-strength low-alloy plates for heavy machinery, wear-resistant plates for material erosion resistance, weather-resistant plates for complex climates, and marine plates that comply with ship classification standards. If you have specific needs, feel free to contact us, and we'll provide professional recommendations.
Email: info@gneesteels.com
| Other steel plate | ||||
| Name | Material | Specification (mm) | Tons | Remark |
| Low Alloy | Q345A, Q345B, Q345C, Q345D, Q345E, Q390, Q420, Q460C, ST52-3, S355J2+N, SS400, SA302GrC, S275NL, 35CrMo | 6 - 350 | 5788.56 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| Pressure Vessel Plate | Q245R, Q345R, Q370R, 16MnDR, 09MnNiDR, 15CrMoR, 14Cr1MoR, 12Cr2Mo1R, SA516Gr60, SA516Gr70, SA516Gr485, SA285, SA387Gr11, SA387Gr12, SA387Gr22, P265,P295,P355GH,Q245R(R-HIC),Q345R(R-HIC) | 3 - 300 | 8650 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| High-Strength Plate | WH785D/E,Q960D/E, Q890D/E,WH60D/E,WH70B,Q550D,Q590D,Q690D/E | 8 - 120 | 3086.352 | Quenched and tempered |
| Wear-Resistant Plate | NM360, NM400, NM450, NM500 | 6 - 150 | 3866.297 | Quenched and tempered |
| Bridge Plate | Q235qC, Q345qC, Q370qC, Q420qC, Q345qDNH, Q370qDNH, A709 - 50F - 2, A709 - 50T - 2 | 8 - 200 | 2853.621 | Hot rolling, normalized ,hot rolling controlled rolling, quenched and tempered + toughness and brittleness |
