ZStE 300 P
ZStE 300 P is a designation in DIN / EN for the material held under material number 1.0448, also listed as H 300 P. It is a material in the category Phosphorus alloyed steels. We list 3 designations recorded for this grade, in the standards DIN / EN.
If you came for one of these
The most-used names for this grade.About Phosphorus alloyed steels
Phosphorus-alloyed steels are steels in which phosphorus is used as a deliberate alloying element. They are characterised by phosphorus-assisted strength and machinability, and are used for components where these properties support efficient manufacturing and service performance.
This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.
Also known as
3 designations · 1 standards · nothing hidden- H 300 PThis grade’s own name
- HC 300 PThis grade’s own name
- ZStE 300 PThis 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
6 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 |
|---|---|
≤ 0.1 | |
≤ 0.5 | |
≤ 0.7 | |
0.12 — | |
0.025 | |
≥ 0.015 |
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 | ≤0,10 | — | 0.100 | Max |
| Al | ≥0,015 | 0.015 | — | Min |
| Si | ≤0,50 | — | 0.500 | Max |
| P | 0,12 | 0.120 | 0.120 | Exact |
| S | 0,025 | 0.025 | 0.025 | Exact |
| Mn | ≤0,70 | — | 0.700 | Max |
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.
Similar grades — and why
Selection rule, stated so you can disagree with it: same number class 1.0, a shared category, and a published range for Mn / Si that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade.
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.