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UNS · United States · 4 grades

# K03000

The designation K03000 is carried by 4 different grades. Compare them on the elements that actually differ, then open the one your print means.

- *Matching grades* **4**
- [*Category* **Unalloyed structural steels · 452 grades**](/categories/unalloyed-structural-steels "Category: Unalloyed structural steels · 452 grades")
- [*Category* **Fine-grain structural steels · 50 grades**](/categories/fine-grain-structural-steels "Category: Fine-grain structural steels · 50 grades")

[Search](/search "Steel grade search")[Inquiry](/inquiry "Inquiry")

## Which of the 4 do you want?

This name is carried by several grades. The elements shown are the ones whose values actually differ across the set — the ones that decide the question. Values are the source text verbatim; an em dash means no value on file for that element on that grade, not zero.

| Grade | Material no. | Category | Designations | C% | Mn% | N% | P% | S% |
|---|---|---|---|---|---|---|---|---|
| [1.0038](/materials/material-no/1.0038 "1.0038") | [1.0038](/materials/material-no/1.0038 "1.0038") 1.0 | [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels") | 152 | ≤0,17 | ≤1,40 | 0,012 | 0,035 | 0,035 |
| [Fe430B](/materials/iso/fe430b "Fe430B") | [1.0044](/materials/material-no/1.0044 "1.0044") 1.0 | [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels") | 130 | ≤0,21 | ≤1,50 | 0,012 | 0,035 | 0,035 |
| [1.0144](/materials/material-no/1.0144 "1.0144") | [1.0144](/materials/material-no/1.0144 "1.0144") 1.0 | [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels") | 64 | ≤0,18 | ≤1,50 | — | 0,035 | 0,035 |
| [1.0486](/materials/material-no/1.0486 "1.0486") | [1.0490](/materials/material-no/1.0490 "1.0490") 1.0 | [Fine-grain structural steels](/categories/fine-grain-structural-steels "Fine-grain structural steels") | 12 | ≤0,18 | 0,50-1,50 | 0,015 | 0,03 | 0,025 |

## Not sure which one your print means?

Search the catalogue by designation, material number or composition — every name on this page is itself a way in.

[Search](/search "Steel grade search")[Inquiry](/inquiry "Inquiry")