ASME SA387 Grade 11 Class2 Plate For Heat Exchanger
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Gnee Steel (Tianjin) Co., Ltd. is one of the most professional asme sa387 grade 11 class2 plate for heat exchanger manufacturers and suppliers in China. Welcome to wholesale customized asme sa387 grade 11 class2 plate for heat exchanger at competitive price from our factory. Good service and quality products are available.
ASME SA387 Grade 11 Class2 pressure vessel plate
Products Description
ASME SA387 Grade 11 Class 2 pressure vessel plate is a specification for chromium-molybdenum alloy steel plates intended for use in elevated temperature applications, commonly associated with pressure vessels and heat exchangers. Nominal chrome content at 1.00% to 1.50%, and Moly 0.45% to 0.65% for SA387 GRADE 11 material.
Key Properties
Composition: ASME SA387 Grade 11 hot-rolled plate typically contains about 1% chromium and 0.5% molybdenum. This composition provides good strength and resistance to oxidation at high temperatures.

Mechanical Properties:
- Yield Strength: Minimum of 205 MPa (30,000 psi)
- Tensile Strength: Minimum of 415 MPa (60,000 psi)
Class 2: This classification indicates that the material has undergone additional heat treatment, enhancing its properties compared to Class 1, which may not have the same level of treatment. Class 2 is intended for applications requiring greater performance under higher stress and temperature conditions.
Applications
ASME SA387 Grade 11 Class 2 steel plate is commonly used in:
- Pressure vessels in the oil and gas industry
- Boilers
- Heat exchangers
- Pipelines and other equipment operating at elevated temperatures
The higher content of chromium will provide excellent corrosion and oxidation resistance, so the material could be used for sour services, and to storage oil, gas, liquid for different industries.
SA387 Grade 11 Chemical Composition
| C | Mn | P | S | Si | Cr | Mo |
| 0.04 - 0.17 | 0.35 - 0.73 | 0.035 | 0.035 | 0.44 - 0.86 | 0.94 - 1.56 | 0.40 - 0.7 |
Our Supply Range
Description: Chrome Moly Alloy Steel Plate ASME SA387
Grade: SA387 GRADE 11, 22, 12, 5, 9, 91
Manufacturing Types: Hot Rolled, Heat Treated
Thickness: 5 to 150 mm
Width: 0.6m to 3m
Length: 6m, 12m, customized
Surface: Natural, Painted
Packing: Standard sea packing, bundled with streel strip.
Customized cutting: Laser Cut, Plasma Cut, CNC Cut.
Inquire about SA387 spot quotation
In addition to 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

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