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AISI / SAE · United States · 4 grades

# Gr.A

The designation Gr.A 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* **Case hardening steels · 60 grades**](/categories/case-hardening-steels "Category: Case hardening steels · 60 grades")
- [*Category* **Heat-resistant structural steels · 62 grades**](/categories/heat-resistant-structural-steels "Category: Heat-resistant structural steels · 62 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% | Si% | P% | S% |
|---|---|---|---|---|---|---|---|---|
| [Fe310-0](/materials/bs/fe310-0 "Fe310-0") | [1.0035](/materials/material-no/1.0035 "1.0035") 1.0 | [Unalloyed structural steels](/categories/unalloyed-structural-steels "Unalloyed structural steels") | 80 | — | — | — | — | — |
| [C10](/materials/din-en/c10 "C10") | [1.0301](/materials/material-no/1.0301 "1.0301") 1.0 | [Case hardening steels](/categories/case-hardening-steels "Case hardening steels") | 63 | 0,07-0,13 | 0,30-0,60 | ≤0,40 | 0,045 | 0,045 |
| [1.0345](/materials/material-no/1.0345 "1.0345") | [1.0345](/materials/material-no/1.0345 "1.0345") 1.0 | [Heat-resistant structural steels](/categories/heat-resistant-structural-steels "Heat-resistant structural steels") | 62 | ≤0,16 | 0,60-1,20 | ≤0,35 | 0,025 | 0,01 |
| [1.0425](/materials/material-no/1.0425 "1.0425") | [1.0425](/materials/material-no/1.0425 "1.0425") 1.0 | [Heat-resistant structural steels](/categories/heat-resistant-structural-steels "Heat-resistant structural steels") | 79 | ≤0,20 | 0,80-1,40 | ≤0,40 | 0,025 | 0,01 |

## 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")