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IS · India · 1 designation

# C8

C8 is a grade designated under IS. Its recorded composition includes C ≤ 0.15%, P ≤ 0.055%, S ≤ 0.055% and Mn 0.3–0.6%. No cross-standard equivalents are recorded for this grade yet.

- *Designations* **1**

[Search](/search "Steel grade search")[Inquiry](/inquiry?material=fc3f886c-6f7e-4324-8dcd-481eecab44d7&designation=9bbb5b15-fc70-43da-b230-952d95f5fe7e "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/is/c8.pdf "Datasheet as PDF")

## Chemical composition

 4 elements on file · weight %

What this alloy is

Fe Mn C P

Iron — the balance, never listed by a standard — 99.3 % Mn — 0.4 % C — 0.2 % P — 0.1 % Traces & impurities · 0.1 %

Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.

| Element | % by weight |
|---|---|
| C | ≤ 0.15 |
| Mn | 0.3–0.6 |
| P | ≤ 0.055 |
| S | ≤ 0.055 — Unusual |

Carbon Manganese Phosphorus Sulfur

0.01 % 0.1 % 1 % 10 % 100 %

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 published source text, verbatim | Min% by weight | Max% by weight | Bound |
|---|---|---|---|---|
| C | max 0.15 | — | 0.150 | Max |
| P | max 0.055 | — | 0.055 | Max |
| S | max 0.055 | — | 0.055 | Max |
| Mn | 0.30 - 0.60 | 0.300 | 0.600 | Range |

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: 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.

## 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.

[Search](/search "Steel grade search")[Inquiry](/inquiry?material=fc3f886c-6f7e-4324-8dcd-481eecab44d7&designation=9bbb5b15-fc70-43da-b230-952d95f5fe7e "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/is/c8.pdf "Datasheet as PDF")