---
title: "H61500 — Quenched and tempered steels"
description: "H61500 in UNS: material number 1.8159, also listed as 50CrV4. Category: Quenched and tempered steels. Designations recorded for this grade: 73."
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UNS · United States · 73 designations

# H61500

H61500 is a designation in UNS for the material held under material number 1.8159, also listed as 50CrV4. It is a material in the category Quenched and tempered steels. We list 73 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, ISO, SAE AMS, JIS, GB, GOST, UNI, SS, ČSN, STN, PN, COPANT, ABNT NBR, SRPS, HRN, MSZ, MKE, STAS, AS / NZS, BDS, NBN and KS.

- [*Material no.* **1.8159**](/materials/material-no/1.8159 "Material no.: 1.8159")
- [*Category* **Quenched and tempered steels · 133 grades**](/categories/quenched-and-tempered-steels "Category: Quenched and tempered steels · 133 grades")
- *Designations* **73**

[Search](/search "Steel grade search")[Inquiry](/inquiry?material=c6eb8abd-dfc2-4825-87ad-4252fde53b12&designation=d51d46f6-6ee5-4be6-8dbf-1f1bade397bb "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/uns/h61500.pdf "Datasheet as PDF")

## If you came for one of these

 The most-used names for this grade.

- [DIN / EN 51CrV4 This grade’s own name · 3 grades on that route](/materials/din-en/51crv4 "DIN / EN 51CrV4")
- [UNS G61500 This grade’s own name · 3 grades on that route](/materials/uns/g61500 "UNS G61500")
- [AISI / SAE 6145 This grade’s own name](/materials/aisi-sae/6145 "AISI / SAE 6145")
- [SS SIS 14 2230 This grade’s own name](/materials/ss/sis-14-2230 "SS SIS 14 2230")

## About Quenched and tempered steels

Quenched and tempered steels are heat-treated steels designed to combine high strength with useful toughness and ductility. They are used for heavily loaded components such as shafts, gears, fasteners and structural machine parts where resistance to mechanical stress is required.

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

## Also known as

 73 designations · 28 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 · 3

- [1.8159 Indicative](/materials/material-no/1.8159 "DIN / EN 1.8159")
- [50CrV4 This grade’s own name Withdrawn](/materials/din-en/50crv4 "DIN / EN 50CrV4")
- [51CrV4 This grade’s own name](/materials/din-en/51crv4 "DIN / EN 51CrV4")

UNS United States · 2

- [G61500 This grade’s own name](/materials/uns/g61500 "UNS G61500")
- **H61500 This grade’s own name**

AISI / SAE United States · 6

- [6145 This grade’s own name](/materials/aisi-sae/6145 "AISI / SAE 6145")
- [6150 This grade’s own name](/materials/aisi-sae/6150 "AISI / SAE 6150")
- [6150H This grade’s own name](/materials/aisi-sae/6150h "AISI / SAE 6150H")
- [G41500 Indicative](/materials/uns/g41500 "AISI / SAE G41500")
- [G61500 Indicative](/materials/uns/g61500 "AISI / SAE G61500")
- **H61500 Indicative**

ASTM United States · 1

- [A331 Indicative](/materials/astm/a331 "ASTM A331")

BS United Kingdom · 7

- [51CrV4 Indicative](/materials/din-en/51crv4 "BS 51CrV4")
- [735A30 Indicative](/materials/bs/735a30 "BS 735A30")
- [735A50 Indicative](/materials/bs/735a50 "BS 735A50")
- [735A51 Indicative](/materials/bs/735a51 "BS 735A51")
- [735A54 Indicative](/materials/bs/735a54 "BS 735A54")
- [735h51 Indicative](/materials/bs/735h51 "BS 735h51")
- [EN 47 Indicative](/materials/bs/en-47 "BS EN 47")

AFNOR France · 7

- [50CrV4 Indicative](/materials/din-en/50crv4 "AFNOR 50CrV4")
- [50CrV4RR Indicative](/materials/afnor/50crv4rr "AFNOR 50CrV4RR")
- [50CV4 Indicative](/materials/afnor/50cv4 "AFNOR 50CV4")
- [50СrV4 Indicative](/materials/afnor/50srv4 "AFNOR 50СrV4")
- [51CrV4 Indicative](/materials/din-en/51crv4 "AFNOR 51CrV4")
- [51СrV4 Indicative](/materials/afnor/51srv4 "AFNOR 51СrV4")
- [55CrV4 Indicative](/materials/afnor/55crv4 "AFNOR 55CrV4")

UNE Spain · 4

- [51CrV4 Indicative](/materials/din-en/51crv4 "UNE 51CrV4")
- [CrV4 Indicative](/materials/une/crv4 "UNE CrV4")
- [F.1430-51 Indicative](/materials/une/f-1430-51 "UNE F.1430-51")
- [F1430 Indicative](/materials/une/f1430 "UNE F1430")

ISO International · 1

- [51CrV4 Indicative](/materials/din-en/51crv4 "ISO 51CrV4")

SAE AMS United States / Aerospace · 1

- [6448 Indicative](/materials/ams/6448 "SAE AMS 6448")

JIS Japan · 3

- [SCM445H Indicative](/materials/jis/scm445h "JIS SCM445H")
- [SUP10 Indicative](/materials/jis/sup10 "JIS SUP10")
- [SUP10-CSP Indicative](/materials/jis/sup10-csp "JIS SUP10-CSP")

GB China · 2

- [50CrVA Indicative](/materials/gb/50crva "GB 50CrVA")
- [50СrVA Indicative](/materials/gb/50srva "GB 50СrVA")

GOST Russia / CIS · 7

- [50ChFA Indicative](/materials/bds/50chfa "GOST 50ChFA")
- [50HFA Indicative](/materials/gost/50hfa "GOST 50HFA")
- [50KHFА Indicative](/materials/gost/50khfa "GOST 50KHFА")
- [50KHGFA Indicative](/materials/gost/50khgfa "GOST 50KHGFA")
- [50KHGFА Indicative](/materials/gost/50khgfa "GOST 50KHGFА")
- [50XΦA Indicative](/materials/gost/50xfa "GOST 50XΦA")
- [50ХФА Indicative](/materials/gost/50khfa "GOST 50ХФА")

UNI Italy · 4

- [48Si7 Indicative](/materials/din-en/48si7 "UNI 48Si7")
- [50CrV4 Indicative](/materials/din-en/50crv4 "UNI 50CrV4")
- [51CrMnV4KU Indicative](/materials/uni/51crmnv4ku "UNI 51CrMnV4KU")
- [51CrV4 Indicative](/materials/din-en/51crv4 "UNI 51CrV4")

SS Sweden · 2

- [2230 Indicative](/materials/ss/2230 "SS 2230")
- [SIS 14 2230 This grade’s own name](/materials/ss/sis-14-2230 "SS SIS 14 2230")

ČSN Czechia · 1

- [15260 Indicative](/materials/csn/15260 "ČSN 15260")

STN Slovakia · 1

- [15 260 Indicative](/materials/csn/15260 "STN 15 260")

PN Poland · 2

- [50HF Indicative](/materials/pn/50hf "PN 50HF")
- [50HS Indicative](/materials/bs/50hs "PN 50HS")

COPANT Latin America · 1

- [6150 Indicative](/materials/aisi-sae/6150 "COPANT 6150")

ABNT NBR Brazil · 1

- [6151 Indicative](/materials/abnt/6151 "ABNT NBR 6151")

SRPS Serbia · 1

- [Č.4830 Indicative](/materials/srps/c-4830 "SRPS Č.4830")

HRN Croatia · 1

- [Č.4830 Indicative](/materials/srps/c-4830 "HRN Č.4830")

MSZ Hungary · 4

- [51CrV4 Indicative](/materials/din-en/51crv4 "MSZ 51CrV4")
- [CrV 3 Indicative](/materials/msz/crv-3 "MSZ CrV 3")
- [CrV3Z Indicative](/materials/msz/crv3z "MSZ CrV3Z")
- [SZ2 Indicative](/materials/msz/sz2 "MSZ SZ2")

MKE Türkiye · 1

- [Ç 6150 Indicative](/materials/mke/c-6150 "MKE Ç 6150")

STAS Romania · 3

- [51VCr11A Indicative](/materials/stas/51vcr11a "STAS 51VCr11A")
- [51VMnCr11 Indicative](/materials/stas/51vmncr11 "STAS 51VMnCr11")
- [51VMnCr11AT Indicative](/materials/stas/51vmncr11at "STAS 51VMnCr11AT")

AS / NZS Australia / New Zealand · 2

- [6150 Indicative](/materials/aisi-sae/6150 "AS / NZS 6150")
- [6150H Indicative](/materials/aisi-sae/6150h "AS / NZS 6150H")

BDS Bulgaria · 3

- [50ChFA Indicative](/materials/bds/50chfa "BDS 50ChFA")
- [50ChGFA Indicative](/materials/bds/50chgfa "BDS 50ChGFA")
- [51CrV4 Indicative](/materials/din-en/51crv4 "BDS 51CrV4")

NBN Belgium · 1

- [50CrV4 Indicative](/materials/din-en/50crv4 "NBN 50CrV4")

KS South Korea · 1

- [SPS6 Indicative](/materials/ks/sps6 "KS SPS6")

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

## Chemical composition

 7 elements on file · weight %

What this alloy is

Fe Cr Mn C

Iron — the balance, never listed by a standard — 96.9 % Cr — 1.1 % Mn — 0.9 % C — 0.5 % Traces & impurities · 0.6 %

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

| Element | % by weight |
|---|---|
| C | 0.47–0.55 |
| Si | ≤ 0.4 |
| Mn | 0.7–1.1 |
| P | 0.025 |
| S | 0.025 |
| Cr | 0.9–1.2 |
| V | 0.1–0.25 |

Carbon Silicon Manganese Phosphorus Sulfur Chromium 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 | 0,47-0,55 | 0.470 | 0.550 | Range |
| Si | ≤0,40 | — | 0.400 | Max |
| P | 0,025 | 0.025 | 0.025 | Exact |
| S | 0,025 | 0.025 | 0.025 | Exact |
| V | 0,10-0,25 | 0.100 | 0.250 | Range |
| Cr | 0,90-1,20 | 0.900 | 1.200 | Range |
| Mn | 0,70-1,10 | 0.700 | 1.100 | Range |

- Cu+10Sn±0,60
- Cu+10Sn±0,60
- Cu+10Sn±0,60

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, Mo.

## Physical & mechanical properties

Density 7,7 g/cm³ Exact

Transformation point Ac1 752 °C Exact

Transformation point Ac3 788 °C Exact · Ac3(Acm)

Transformation point Ar3 746 °C Exact · Ar3(Arcm)

Transformation point Ar1 688 °C Exact

Weldability not suitable for welding As published: is not used.

Flake sensitivity not susceptible As published: not predisposed

Temper brittleness slightly susceptible As published: weakly predisposed

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.

## Properties by condition

 5 conditions · 55 values

By heat-treated condition**no delivery state stated** source `splav`

| Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | Z% |
|---|---|---|---|---|
| Bar | 1300 | 1100 | 10 | 45 |
| Rolled stock, GOST 14959-79 | 1270 | 1080 | 8 | 35 |

By delivery state**no delivery state stated** source `splav`

| Delivery state | HB |
|---|---|
| (without heat treatment) , Rolled stock GOST 14959-79 | 302 |
| (heat treatment) , Rolled stock GOST 14959-79 | 269 |

By dimension**no delivery state stated** source `splav`

| Dimension mm | Rm N/mm² | A5% |
|---|---|---|
| 0.1 - 4 | 880 | 8 |

By dimension**no delivery state stated** source `splav`

| Dimension mm | Rm N/mm² |
|---|---|
| 0.1 - 4 | 780 – 1180 |

At temperature**no delivery state stated** source `splav`

| Temperature °C | Density g/cm³ | Elastic modulus GPa | Thermal expansion coefficient 10^-6/K | Thermal conductivity W/(m·K) | Specific heat capacity J/(kg·K) | Electrical resistivity nΩ·m |
|---|---|---|---|---|---|---|
| 20 | 7.8 | 218 | — | 40 | — | 320 |
| 100 | 7.78 | 215 | 11.7 | 39 | 490 | — |
| 200 | 7.75 | 210 | 12.2 | 38 | 505 | — |
| 300 | 7.72 | 200 | 12.9 | 37 | 510 | — |
| 400 | 7.68 | 188 | 13.5 | 36 | 530 | — |
| 500 | 7.65 | 178 | 14 | 33 | 560 | — |
| 600 | 7.61 | 160 | 14.4 | 31 | 580 | — |
| 700 | — | 142 | 14.6 | 29 | 620 | — |
| 800 | — | 132 | 13.1 | 28 | 700 | — |

Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ.

## Similar grades — and why

Selection rule, stated so you can disagree with it: same number class 1.8, a shared category, and a published range for Cr / Mn 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.

[58CrV4 1.8161

Cr 0,90-1,20 · Mn 0,70-1,10

- ΔCr 0.00
- ΔMn 0.00
- 7 designations](/materials/din-en/58crv4 "58CrV4")

## 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=c6eb8abd-dfc2-4825-87ad-4252fde53b12&designation=d51d46f6-6ee5-4be6-8dbf-1f1bade397bb "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/uns/h61500.pdf "Datasheet as PDF")
