Stainless steel AISI 347
High-temperature gaskets, expansion joints and manifolds.
| Steel family | Austenitic |
|---|---|
| EN | 1.4550 |
| Approximate Russian grade | Verify chemical composition |
| Calculation density | 7,930 kg/m³ — confirm for each batch |
| Weldability | Generally good; agree the welding procedure |
Selection considerations
Niobium stabilised. AISI 348 is a separate grade and is not combined with 347 in this guide.
GOST comparison
An approximate grade match is not proof of interchangeability. Check the heat chemistry, mechanical properties, delivery condition, dimensions and project requirements. GOST 5632-2014 concerns grades and chemical composition; finished strip may require separate product standards.
Coil and strip supply
Availability of this grade in each format, dimensions and lead times must be confirmed. AISI designations alone are not a certificate of conformity. For a quote, specify thickness, coil or strip width, total mass, finish, service environment and destination. No stock availability or fixed price is implied by this guide.
Other grades in this family
These links help you explore the family; they are not substitution recommendations.