SA387Gr91CL2 hot-rolled plate is a commonly used high-temperature pressure vessel steel, featuring excellent heat resistance and corrosion resistance, and is widely applied in the industrial field. However, in some engineering projects, it may be necessary to choose the corresponding GB material. So, what is the GB equivalent of SA387Gr91CL2? This article will discuss this question.
GB Equivalent of SA387Gr91CL2 pressure vessel plate
The GB equivalent of SA387Gr91CL2 pressure vessel plate is a similar type of high-temperature pressure vessel steel. According to GB standards and specifications, common equivalent materials include:
15CrMoR
15CrMoR is a commonly used high-temperature pressure vessel steel with high strength and heat resistance. Its yield strength is ≥345 MPa, and tensile strength is ≥510 MPa, making it suitable for manufacturing various high-temperature pressure vessels and boilers. Similar to SA387Gr91CL2, 15CrMoR also possesses excellent heat resistance and corrosion resistance.
|
elements |
SA387Gr91CL2(ASME) |
15CrMoR(GB) |
|
Cr |
8.0-9.5% |
1.00-1.50% |
|
Mo |
0.85-1.05% |
0.40-0.60% |
|
V |
0.18-0.25% |
≤0.03% |
|
N |
0.03-0.07% |
/ |
Applicable Replacement Scenarios
For non-extreme conditions with temperature ≤550℃ and medium pressure (e.g., ≤10 MPa), such as conventional heat exchangers and medium-temperature storage tanks.
12Cr1MoVR
12Cr1MoVR is another commonly used high-temperature pressure vessel steel, suitable for the manufacture of high-temperature and high-pressure vessels and boilers. This material offers high strength and toughness, with a yield strength of ≥440 MPa and a tensile strength of ≥590 MPa, ensuring stable performance under high-temperature and high-pressure environments.
|
elements |
SA387Gr91CL2(ASME) |
12Cr1MoVR(GB) |
|
Cr |
8.0-9.5% |
1.00-1.50% |
|
Mo |
0.85-1.05% |
0.40-0.60% |
|
V |
0.18-0.25% |
0.10-0.30% |
|
N |
0.03-0.07% |
/ |
Preferred Replacement Scenarios
For domestic high-temperature and high-pressure equipment (such as subcritical boilers and high-pressure heat exchangers), under conditions with temperature ≤570℃ and pressure ≤18 MPa. Among the three materials, this is the closest domestic equivalent to SA387Gr91CL2.
13CrMo4-5
13CrMo4-5 is a European standard high-temperature pressure vessel steel, which shares certain similarities in performance with SA387Gr91CL2. This material offers good heat resistance and oxidation resistance, with a yield strength of ≥345 MPa and a tensile strength of ≥510 MPa, making it suitable for manufacturing high-temperature pressure vessels and pipelines.
|
elements |
SA387Gr91CL2(ASME) |
13CrMo4-5(EN) |
|
Cr |
8.0-9.5% |
1.00-1.50% |
|
Mo |
0.85-1.05% |
0.45-0.65% |
|
V |
0.18-0.25% |
≤0.03% |
Alternative Scenario
In international projects, for medium-temperature pressure-bearing equipment (such as heat medium furnaces in joint-venture plants) with a temperature ≤ 550℃, materials need to meet EN standard certification requirements.
Choosing the Appropriate Material
In engineering projects, selecting the right material is crucial to ensure project quality and safety. When choosing materials, the following factors need to be considered:
- Engineering Requirements: Select materials with the corresponding performance and characteristics according to the specific requirements of the project, ensuring the safety and reliability of the engineering.
- Cost Considerations: Consider the price and availability of the material, and choose materials that meet the budget.
- Technical Support: Choose suppliers with experience and technical support to ensure that the quality and performance of the materials meet standard requirements.
Conclusion
In engineering projects, SA387Gr91CL2 pressure vessel plate often needs to be matched with corresponding materials according to GB standards and specifications. Materials such as 15CrMoR, 12Cr1MoVR, and 13CrMo4-5 have certain performance similarities with SA387Gr91CL2 alloy steel plate and can be used as alternative materials in engineering projects. During the material selection process, it is necessary to comprehensively consider engineering requirements, cost, and technical support to choose the appropriate material and ensure project quality and safety.
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.
Q: What is a A387 Grade 5 equivalent to?
A: Other Designations. Other designations that are equivalent to AISI A387 grade 5-PVQ alloy steel include the following: ASME SA387 (5) ASTM A314 (502)
Q: What is SA 387 GR 5 material?
A: chrome molybdenum alloy steel plate
SA387 GR 5 CLASS 2
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.
Our product matrix goes beyond A387/SA387, including the various steel plates shown in the table below: high-strength low-alloy plates for a balance of strength and toughness, wear-resistant plates for high wear conditions, weather-resistant plates for aging and corrosion resistance, and marine plates designed for ship structures. If you're interested in any particular type, feel free to reach out for consultation.
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 |
