BS S 527
British aerospace sheet and strip reference for niobium-stabilized stainless steel, associated with Type 347 in DRDO material guidance.
Niobium-Stabilized Stainless Sheet & Strip
BS S 527:1969+A3:2013 publisher record
1 linked material grade
Material requirements.
Clearly organized.
British aerospace sheet and strip reference for niobium-stabilized stainless steel, associated with Type 347 in DRDO material guidance.
Softened; confirm ordered aerospace requirements.
The publisher title identifies 540 MPa tensile strength. Check the full standard for thickness-dependent tests and other requirements. The 347 manufacturer reference values below are not the BS S 527 acceptance table.
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Chemical & Mechanical Properties
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| Grade / identification | C % | Cr % | Ni % | Mo % | Other |
|---|---|---|---|---|---|
| SS347 S34700 | 0.05 | 17.5 | 9.5 | — | Nb stabilized |
Manufacturer typical composition, mass %; selected elements only.
These published alloy values are comparison data. The BS S 527 acceptance limits must be checked in the specified revision.
| Grade / identification | Product form / condition | Tensile (MPa) | 0.2% proof / yield (MPa) | Elongation (%) | Data basis |
|---|---|---|---|---|---|
| SS347 S34700 | Hot-rolled plate, usually 10–20 mm, transverse; room temperature | 595 | 260 | 45 | Manufacturer typical values; elongation A5. |
Typical properties are comparison values. Manufacturer limits marked “min” apply only to the stated product. Confirm the ordered revision, thickness, heat treatment, specimen direction and gauge length before material acceptance.
Engineered for demanding service.
Grade selection depends on the process environment, temperature, corrosion exposure and equipment design.
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How should BS S 527 be specified?
State the revision, exact material grade, product form, dimensions, delivery condition and certification requirements on the purchase order.
Are the displayed properties specification acceptance limits?
The tables identify published manufacturer reference data. Typical values describe the stated reference product and are not certified BS S 527 limits. Use the ordered revision for material acceptance.
Are these all the materials covered by the standard?
This page links selected materials already present on the website. The linked material list is not the complete scope of the standard.
Which sources support this material reference?
BSI — BS S 527:1969+A3:2013 publisher record
DRDO — Aviation Metallic Materials, Volume II (347 / BS S 527 mapping)
Outokumpu — Steel Grades, Properties and Global Standards, Tables 4, 5 and 7