---
title: "19 675 — Tool steels for hot work"
description: "19 675 in ČSN: material number 1.2740, also listed as 28NiCrMoV10. Category: Tool steels for hot work. Designations recorded for this grade: 2."
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ČSN · Czechia · 2 designations

# 19 675

19 675 is a designation in ČSN for the material held under material number 1.2740, also listed as 28NiCrMoV10. It is a material in the category Tool steels for hot work. We list 2 designations recorded for this grade, in the standards DIN / EN and ČSN.

- [*Material no.* **1.2740**](/materials/material-no/1.2740 "Material no.: 1.2740")
- [*Category* **Tool steels for hot work · 37 grades**](/categories/tool-steels-for-hot-work "Category: Tool steels for hot work · 37 grades")
- *Designations* **2**

[Search](/search "Steel grade search")[Inquiry](/inquiry?material=2930d500-7b21-4751-b36e-195a2fb06886&designation=f9899224-4982-4855-aad0-bfde58e87947 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/csn/19-675.pdf "Datasheet as PDF")

## If you came for one of these

 The most-used names for this grade.

- [DIN / EN 28NiCrMoV10 This grade’s own name](/materials/din-en/28nicrmov10 "DIN / EN 28NiCrMoV10")

## About Tool steels for hot work

Tool steels for hot work are alloy steels designed for tooling that operates in contact with heated metal. They are characterised by hot hardness, wear resistance, toughness and resistance to thermal fatigue, making them suitable for dies, moulds, punches and other forging, extrusion and die-casting tools.

This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.

## Also known as

 2 designations · 2 standards · nothing hidden

This grade’s own name recorded in our sources as this grade’s own designation under that standard.

Indicative taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering.

Withdrawn designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.

DIN / EN Europe · 1

- [28NiCrMoV10 This grade’s own name](/materials/din-en/28nicrmov10 "DIN / EN 28NiCrMoV10")

ČSN Czechia · 1

- **19 675 Indicative**

Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.

## Chemical composition

 9 elements on file · weight %

What this alloy is

Fe Ni Cr Mo

Iron — the balance, never listed by a standard — 94.9 % Ni — 2.5 % Cr — 0.8 % Mo — 0.6 % Traces & impurities · 1.3 %

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

| Element | % by weight |
|---|---|
| C | 0.24–0.32 |
| Si | 0.3–0.5 |
| Mn | 0.2–0.4 |
| P | 0.03 |
| S | 0.03 |
| Cr | 0.6–0.9 |
| Mo | 0.5–0.7 |
| Ni | 2.3–2.6 |
| V | 0.25–0.32 |

Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Vanadium

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 | 0,24-0,32 | 0.240 | 0.320 | Range |
| Si | 0,30-0,50 | 0.300 | 0.500 | Range |
| P | 0,03 | 0.030 | 0.030 | Exact |
| S | 0,03 | 0.030 | 0.030 | Exact |
| V | 0,25-0,32 | 0.250 | 0.320 | Range |
| Cr | 0,60-0,90 | 0.600 | 0.900 | Range |
| Mn | 0,20-0,40 | 0.200 | 0.400 | Range |
| Ni | 2,30-2,60 | 2.300 | 2.600 | Range |
| Mo | 0,50-0,70 | 0.500 | 0.700 | 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

 computed from composition · °C

Predicted Ae3 766 °C

Predicted Ae1 712 °C

Predicted Acm 535 °C

Predicted Bs 506 °C

These four temperatures are a CALCULATION from this grade's own composition, using the published Li, Niebuhr, Meekisho & Atteridge (1998) model — never a measurement, and computed from the UPPER BOUND of each element's specified range, not a mid-range figure. Where this grade also has a measured transformation point (Ac1, Ac3, Ar1, Ar3) on file, it is shown separately, in Physical & mechanical properties, and is never replaced by the predicted figures here — Ae (predicted, equilibrium) and Ac/Ar (measured, on heating or cooling) are different physical quantities and can differ by tens of degrees; a mismatch between the two is not an error in either.

## Physical & mechanical properties

Density 7,85 g/cm³ Exact

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=2930d500-7b21-4751-b36e-195a2fb06886&designation=f9899224-4982-4855-aad0-bfde58e87947 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/csn/19-675.pdf "Datasheet as PDF")
