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Where resistance to high temperature and good anti-corrosion characteristics are required, ASME SA387 Grade 91 Class 2 carbon alloy steel plate is a material to consider. It is a pressure vessel grade steel which is used commonly by fabricators who supply the oil and gas industry.
Due to the materials excellent corrosion resistant properties, SA387 Grade 91 is also an option for use in sour service environments. The material has good weldability and with its heat resistant qualities, the material is a highly versatile steel which can be used in numerous applications.
Masteel can supply SA387 Grade 91 steel plate from stock to global destinations with mill certification and stampings.
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Masteel UK Limited,
The Cedars, Coton Road,
Nether Whitacre, Coleshill,
Birmingham, West Midlands
B46 2HH
t: +44 (0)1675 437733
f: +44 (0)1675 437734
e–mail: enquiries@masteel.co.uk
website: www.masteel.co.uk
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Where resistance to high temperature and good anti-corrosion characteristics are required, ASME SA387 Grade 91 Class 2 carbon alloy steel plate is a material to consider. It is a pressure vessel grade steel which is used commonly by fabricators who supply the oil and gas industry.
Due to the materials excellent corrosion resistant properties, SA387 Grade 91 is also an option for use in sour service environments. The material has good weldability and with its heat resistant qualities, the material is a highly versatile steel which can be used in numerous applications.
Masteel can supply SA387 Grade 91 steel plate from stock to global destinations with mill certification and stampings.
Equivalents
| BS | EN | ASTM/ASME | DIN |
| ... | ... | SA387-91-2 | ... |
Specifications
Chromium & Molybdenum content (according to the ASME specification):
| Designation | Nominal Chromium Content (%) |
Nominal Molybdenum Content (%) |
| SA387 Grade 91 | 9.00% | 1.00% |
Tensile Requirements for Class 2 Plates
| Designation: | Requirement: | Grade 91 |
| SA387 Grade 91 | Tensile strength, ksi [MPA] | 85 to 110 [585 to 760] |
| Yield strength, min, ksi [MPa]/(0.2% offset) | 60 [415] | |
| Elongation in 8 in. [200mm], min % | ... | |
| Elongation in 2 in. [50mm], min, % | 18 | |
| Reduction of area, min % | ... |
Chemical Requirements
| Element | Chemical Composition (%). | |
| SA387 Grade 91 | ||
| Carbon: | Heat Analysis: | 0.08 - 0.12 |
| Product Analysis: | 0.06 - 0.15 | |
| Manganese: | Heat Analysis: | 0.30 - 0.60 |
| Product Analysis: | 0.25 - 0.66 | |
| Phosphorus: | Heat Analysis: | 0.020 |
| Product Analysis: | 0.025 | |
| Sulphur (max): | Heat Analysis: | 0.010 |
| Product Analysis: | 0.012 | |
| Silicon: | Heat Analysis: | 0.20 - 0.50 |
| Product Analysis: | 0.18 - 0.56 | |
| Chromium: | Heat Analysis: | 8.00 - 9.50 |
| Product Analysis: | 7.90 - 9.60 | |
| Molybdenum: | Heat Analysis: | 0.85 - 1.05 |
| Product Analysis: | 0.80 - 1.10 | |
| Nickel, max: | Heat Analysis: | 0.40 |
| Product Analysis: | 0.43 | |
| Vanadium: | Heat Analysis: | 0.18 - 0.25 |
| Product Analysis: | 0.16 - 0.27 | |
| Columbium: | Heat Analysis: | 0.06 - 0.10 |
| Product Analysis: | 0.05 - 0.11 | |
| Nitrogen: | Heat Analysis: | 0.030 - 0.070 |
| Product Analysis: | 0.025 - 0.080 | |
| Aluminium: | Heat Analysis: | 0.02 |
| Product Analysis: | 0.02 | |
| Titanium: | Heat Analysis: | 0.01 |
| Product Analysis: | 0.01 | |
| Zirconium: | Heat Analysis: | 0.01 |
| Product Analysis: | 0.01 |
Tension Test Requirements:
Material shall be tested using a test specimen will confirm to the tensile requirements as outlined in Table 2.Other requirements:
The following requirements and testing procedures (which are not mandatory) are considered suitable for Chrome Molybdenum steel:- Vacuum treatment
- Product Analysis
- Additional Tension Test
- Charpy V-Notch Impact Test
- Drop Weight Test
- High Temperature Tension Test
- Ultrasonic Examination
- Magnetic Particle Examination
Equivalent Grades :
Our Steel Products :
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Can't find the info you need?
The Masteel website has it's own search engine.
Simply enter the phrase you are looking for in the search box above (top left) and a set of site search results will be displayed.
If you still need further information, then please contact us – we will be pleased to help you.
Masteel UK Limited,
The Cedars, Coton Road,
Nether Whitacre, Coleshill,
Birmingham, West Midlands
B46 2HH
t: +44 (0)1675 437733
f: +44 (0)1675 437734
e–mail: enquiries@masteel.co.uk
website: www.masteel.co.uk