STR409L
STR409L is a material in the category Heat resistant steels. Recorded mechanical properties include Rm 360 N/mm², Re 175 N/mm², A 25% and HB 162. We hold no composition or cross-standard equivalents for it yet.
- Category Heat resistant steels · 64 grades
- Designations 1
About Heat resistant steels
Heat resistant steels are alloyed materials designed to retain useful mechanical properties and resist oxidation or scaling during service at elevated temperatures. They are used for components in furnaces, boilers, heat exchangers and power-generation equipment exposed to hot gases or sustained heat.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Predicted transformation temperatures
Not enough recorded composition to predict a transformation temperature for this grade — missing: C, Mn, Si, Ni, Cr, Mo.
Physical & mechanical properties
An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material.
Properties by condition
1 conditions · 3 valuessteelks| Delivery state | RmN/mm² | ReN/mm² | A% |
|---|---|---|---|
| Plate/Sheet | 360 | 175 | 25 |
Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ.
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