1340H
1340H is a designation in AISI / SAE for the material held under material number 1.5069, also listed as 36Mn7. It is a material in the category High-strength steels. We list 12 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, AFNOR, JIS, GB, GOST and ČSN.
If you came for one of these
The most-used names for this grade.About High-strength steels
High-strength steels are steels designed to carry high loads while resisting deformation. They are used for load-bearing structures, vehicles and machinery where strength, durability and reduced material weight are important.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Also known as
12 designations · 8 standards · nothing hidden- 1335This grade’s own name
- 1340Indicative
- 1340HThis grade’s own name
Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.
Chemical composition
5 elements on file · weight %What this alloy is
Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.
| Element | % by weight |
|---|---|
≈ 0.35 — | |
≈ 0.5 | |
≈ 1.6 | |
0.025 | |
0.025 |
The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other.
| Element | As publishedsource text, verbatim | Min% by weight | Max% by weight | Bound |
|---|---|---|---|---|
| C | ~0,35 | 0.350 | 0.350 | Indicative |
| Si | ~0,50 | 0.500 | 0.500 | Indicative |
| P | 0,025 | 0.025 | 0.025 | Exact |
| S | 0,025 | 0.025 | 0.025 | Exact |
| Mn | ~1,60 | 1.600 | 1.600 | Indicative |
The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred.
Predicted transformation temperatures
Not enough recorded composition to predict a transformation temperature for this grade — missing: 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.
Looking for this grade under another name?
Search the catalogue by designation, material number or composition — every name on this page is itself a way in.