---
title: "4137 — Quenched and tempered steels"
description: "4137 in AISI / SAE: material number 1.7220, also listed as 34CrMo4. Category: Quenched and tempered steels. Designations recorded for this grade: 159."
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AISI / SAE · United States · 159 designations

# 4137

4137 is a designation in AISI / SAE for the material held under material number 1.7220, also listed as 34CrMo4. It is a material in the category Quenched and tempered steels. We list 159 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, PN, SRPS, MSZ, STAS, AS / NZS, BDS, ÖNORM, NBN, SFS and KS.

- [*Material no.* **1.7220**](/materials/material-no/1.7220 "Material no.: 1.7220")
- [*Category* **Quenched and tempered steels · 133 grades**](/categories/quenched-and-tempered-steels "Category: Quenched and tempered steels · 133 grades")
- *Designations* **159**

[Search](/search "Steel grade search")[Inquiry](/inquiry?material=12d5aa80-ddcb-4ddf-b530-27c29873c842&designation=7a1b024c-6688-417b-a3cb-3871adb2852e "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/aisi-sae/4137.pdf "Datasheet as PDF")

## If you came for one of these

 The most-used names for this grade.

- [DIN / EN 34CrMo4 This grade’s own name](/materials/din-en/34crmo4 "DIN / EN 34CrMo4")
- [UNS G41350 This grade’s own name · 3 grades on that route](/materials/uns/g41350 "UNS G41350")
- [AISI / SAE 4135 This grade’s own name · 3 grades on that route](/materials/aisi-sae/4135 "AISI / SAE 4135")
- [BS 738M32 This grade’s own name](/materials/bs/738m32 "BS 738M32")
- [GB 34CrMo4 This grade’s own name](/materials/din-en/34crmo4 "GB 34CrMo4")

## 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

 159 designations · 25 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 · 2

- [1.7220 Indicative](/materials/material-no/1.7220 "DIN / EN 1.7220")
- [34CrMo4 This grade’s own name](/materials/din-en/34crmo4 "DIN / EN 34CrMo4")

UNS United States · 5

- [G41300 Indicative](/materials/uns/g41300 "UNS G41300")
- [G41350 This grade’s own name](/materials/uns/g41350 "UNS G41350")
- [G41370 This grade’s own name](/materials/uns/g41370 "UNS G41370")
- [H41350 This grade’s own name](/materials/uns/h41350 "UNS H41350")
- [H41370 This grade’s own name](/materials/uns/h41370 "UNS H41370")

AISI / SAE United States · 15

- [4130 Indicative](/materials/aisi-sae/4130 "AISI / SAE 4130")
- [4135 This grade’s own name](/materials/aisi-sae/4135 "AISI / SAE 4135")
- [4135 4137 Indicative](/materials/aisi-sae/4135-4137 "AISI / SAE 4135 4137")
- [4135H This grade’s own name](/materials/aisi-sae/4135h "AISI / SAE 4135H")
- **4137 This grade’s own name**
- [4137 4135 Indicative](/materials/aisi-sae/4137-4135 "AISI / SAE 4137 4135")
- [4137H This grade’s own name](/materials/aisi-sae/4137h "AISI / SAE 4137H")
- [G41300 Indicative](/materials/uns/g41300 "AISI / SAE G41300")
- [G41350 Indicative](/materials/uns/g41350 "AISI / SAE G41350")
- [G41370 Indicative](/materials/uns/g41370 "AISI / SAE G41370")
- [H41350 Indicative](/materials/uns/h41350 "AISI / SAE H41350")
- [H41370 Indicative](/materials/uns/h41370 "AISI / SAE H41370")
- [J13045 Indicative](/materials/uns/j13045 "AISI / SAE J13045")
- [J13048 Indicative](/materials/uns/j13048 "AISI / SAE J13048")
- [J13345 Indicative](/materials/aisi-sae/j13345 "AISI / SAE J13345")

ASTM United States · 4

- [4135 Indicative](/materials/aisi-sae/4135 "ASTM 4135")
- [A322 Indicative](/materials/astm/a322 "ASTM A322")
- [A331 Indicative](/materials/astm/a331 "ASTM A331")
- [AMS 6352 F Indicative](/materials/astm/ams-6352-f "ASTM AMS 6352 F")

BS United Kingdom · 10

- [1717COS110 Indicative](/materials/bs/1717cos110 "BS 1717COS110")
- [19B Indicative](/materials/bs/19b "BS 19B")
- [25CrMo4 Indicative](/materials/din-en/25crmo4 "BS 25CrMo4")
- [34CrMo4 Indicative](/materials/din-en/34crmo4 "BS 34CrMo4")
- [708A25 Indicative](/materials/bs/708a25 "BS 708A25")
- [708A30 Indicative](/materials/bs/708a30 "BS 708A30")
- [708A37 Indicative](/materials/bs/708a37 "BS 708A37")
- [708M32 Indicative](/materials/bs/708m32 "BS 708M32")
- [738M32 This grade’s own name](/materials/bs/738m32 "BS 738M32")
- [EN19B Indicative](/materials/bs/en19b "BS EN19B")

AFNOR France · 11

- [25CD4 Indicative](/materials/afnor/25cd4 "AFNOR 25CD4")
- [25CD4FF Indicative](/materials/afnor/25cd4ff "AFNOR 25CD4FF")
- [25CrMo4 Indicative](/materials/din-en/25crmo4 "AFNOR 25CrMo4")
- [30CD4 Indicative](/materials/afnor/30cd4 "AFNOR 30CD4")
- [30CD4FF Indicative](/materials/afnor/30cd4ff "AFNOR 30CD4FF")
- [34CD4 Indicative](/materials/afnor/34cd4 "AFNOR 34CD4")
- [34CD4FF Indicative](/materials/afnor/34cd4ff "AFNOR 34CD4FF")
- [34CrMo4 Indicative](/materials/din-en/34crmo4 "AFNOR 34CrMo4")
- [34CrMo4RR Indicative](/materials/afnor/34crmo4rr "AFNOR 34CrMo4RR")
- [35CD4 Indicative](/materials/afnor/35cd4 "AFNOR 35CD4")
- [38CD4 Indicative](/materials/afnor/38cd4 "AFNOR 38CD4")

UNE Spain · 12

- [25CrMo4 Indicative](/materials/din-en/25crmo4 "UNE 25CrMo4")
- [34CrMo4 Indicative](/materials/din-en/34crmo4 "UNE 34CrMo4")
- [35CrMo4 Indicative](/materials/din-en/35crmo4 "UNE 35CrMo4")
- [35CrMo4DF Indicative](/materials/une/35crmo4df "UNE 35CrMo4DF")
- [AM25CrMo4 Indicative](/materials/une/am25crmo4 "UNE AM25CrMo4")
- [AM26CrMo4 Indicative](/materials/une/am26crmo4 "UNE AM26CrMo4")
- [AM34CrMo4 Indicative](/materials/une/am34crmo4 "UNE AM34CrMo4")
- [F.1250 Indicative](/materials/une/f-1250 "UNE F.1250")
- [F.1254 Indicative](/materials/une/f-1254 "UNE F.1254")
- [F.222 Indicative](/materials/une/f-222 "UNE F.222")
- [F.8231 Indicative](/materials/une/f-8231 "UNE F.8231")
- [F.8331 Indicative](/materials/une/f-8331 "UNE F.8331")

ISO International · 3

- [34CrMo4 Indicative](/materials/din-en/34crmo4 "ISO 34CrMo4")
- [34CrMo4E Indicative](/materials/iso/34crmo4e "ISO 34CrMo4E")
- [34CrMoS4 Indicative](/materials/din-en/34crmos4 "ISO 34CrMoS4")

SAE AMS United States / Aerospace · 10

- [6345 Indicative plate sheet](/materials/ams/6345 "SAE AMS 6345")
- [6346 Indicative bar](/materials/ams/6346 "SAE AMS 6346")
- [6348 Indicative bar](/materials/ams/6348 "SAE AMS 6348")
- [6350 Indicative plate sheet](/materials/ams/6350 "SAE AMS 6350")
- [6351 Indicative plate sheet](/materials/ams/6351 "SAE AMS 6351")
- [6360 Indicative](/materials/ams/6360 "SAE AMS 6360")
- [6361 Indicative](/materials/ams/6361 "SAE AMS 6361")
- [6370 Indicative bar](/materials/ams/6370 "SAE AMS 6370")
- [6371 Indicative tube](/materials/ams/6371 "SAE AMS 6371")
- [6374 Indicative](/materials/ams/6374 "SAE AMS 6374")

JIS Japan · 10

- [SCCrM1 Indicative](/materials/jis/sccrm1 "JIS SCCrM1")
- [SCCRM3 Indicative](/materials/ks/sccrm3 "JIS SCCRM3")
- [SCM2 Indicative](/materials/jis/scm2 "JIS SCM2")
- [SCM3 Indicative](/materials/jis/scm3 "JIS SCM3")
- [SCM420 Indicative](/materials/ks/scm420 "JIS SCM420")
- [SCM430 Indicative](/materials/ks/scm430 "JIS SCM430")
- [SCM432 Indicative](/materials/ks/scm432 "JIS SCM432")
- [SCM435 Indicative](/materials/ks/scm435 "JIS SCM435")
- [SCM435H Indicative](/materials/jis/scm435h "JIS SCM435H")
- [SCM440H Indicative](/materials/jis/scm440h "JIS SCM440H")

GB China · 7

- [30CrMo Indicative](/materials/gb/30crmo "GB 30CrMo")
- [34CrMo4 This grade’s own name](/materials/din-en/34crmo4 "GB 34CrMo4")
- [35CrMo Indicative](/materials/gb/35crmo "GB 35CrMo")
- [ML30CrMo Indicative](/materials/gb/ml30crmo "GB ML30CrMo")
- [ML30CrMoA Indicative](/materials/gb/ml30crmoa "GB ML30CrMoA")
- [ML35CrMo Indicative](/materials/gb/ml35crmo "GB ML35CrMo")
- [ZG35CrMo Indicative](/materials/gb/zg35crmo "GB ZG35CrMo")

GOST Russia / CIS · 12

- [30ChMNA Indicative](/materials/gost/30chmna "GOST 30ChMNA")
- [30KhM Indicative](/materials/gost/30khm "GOST 30KhM")
- [30XM Indicative](/materials/gost/30xm "GOST 30XM")
- [30ХМ Indicative](/materials/gost/30khm "GOST 30ХМ")
- [35ChM Indicative](/materials/bds/35chm "GOST 35ChM")
- [35KHM Indicative](/materials/gost/35khm "GOST 35KHM")
- [35KHML Indicative](/materials/gost/35khml "GOST 35KHML")
- [35XM Indicative](/materials/gost/35xm "GOST 35XM")
- [35ХМ Indicative](/materials/gost/35khm "GOST 35ХМ")
- [АS38KHGM Indicative](/materials/gost/as38khgm "GOST АS38KHGM")
- [АС38ХГМ Indicative](/materials/gost/as38khgm "GOST АС38ХГМ")
- [ст.35XM Indicative](/materials/gost/st-35xm "GOST ст.35XM")

UNI Italy · 7

- [25CrMo4 Indicative](/materials/din-en/25crmo4 "UNI 25CrMo4")
- [25CrMo4KB Indicative](/materials/uni/25crmo4kb "UNI 25CrMo4KB")
- [30CrMo4 Indicative](/materials/din-en/30crmo4 "UNI 30CrMo4")
- [34CrMo4 Indicative](/materials/din-en/34crmo4 "UNI 34CrMo4")
- [34CrMo4KB Indicative](/materials/uni/34crmo4kb "UNI 34CrMo4KB")
- [35CrMo4 Indicative](/materials/din-en/35crmo4 "UNI 35CrMo4")
- [35CrMo4F Indicative](/materials/uni/35crmo4f "UNI 35CrMo4F")

SS Sweden · 4

- [2225 Indicative](/materials/ss/2225 "SS 2225")
- [2233 Indicative](/materials/ss/2233 "SS 2233")
- [2234 Indicative](/materials/ss/2234 "SS 2234")
- [SIS 14 2234 This grade’s own name](/materials/ss/sis-14-2234 "SS SIS 14 2234")

ČSN Czechia · 5

- [14141 Indicative](/materials/csn/14141 "ČSN 14141")
- [15130 Indicative](/materials/csn/15130 "ČSN 15130")
- [15131 Indicative](/materials/csn/15131 "ČSN 15131")
- [15141 Indicative](/materials/csn/15141 "ČSN 15141")
- [15141 PH Indicative](/materials/csn/15141-ph "ČSN 15141 PH")

PN Poland · 7

- [25HM Indicative](/materials/pn/25hm "PN 25HM")
- [26HM Indicative](/materials/pn/26hm "PN 26HM")
- [30HM Indicative](/materials/pn/30hm "PN 30HM")
- [35HM Indicative](/materials/pn/35hm "PN 35HM")
- [35HMA Indicative](/materials/pn/35hma "PN 35HMA")
- [L25HM Indicative](/materials/pn/l25hm "PN L25HM")
- [L35HM Indicative](/materials/pn/l35hm "PN L35HM")

SRPS Serbia · 1

- [Č.4731 Indicative](/materials/srps/c-4731 "SRPS Č.4731")

MSZ Hungary · 4

- [25CrMo4 Indicative](/materials/din-en/25crmo4 "MSZ 25CrMo4")
- [34CrMo4 Indicative](/materials/din-en/34crmo4 "MSZ 34CrMo4")
- [CMo 3 Indicative](/materials/msz/cmo-3 "MSZ CMo 3")
- [CMo3Z Indicative](/materials/msz/cmo3z "MSZ CMo3Z")

STAS Romania · 7

- [26MoCr11 Indicative](/materials/stas/26mocr11 "STAS 26MoCr11")
- [33MoCr11 Indicative](/materials/stas/33mocr11 "STAS 33MoCr11")
- [34MoCr11 Indicative](/materials/stas/34mocr11 "STAS 34MoCr11")
- [34MoCr11AS Indicative](/materials/stas/34mocr11as "STAS 34MoCr11AS")
- [34MoCr11q Indicative](/materials/stas/34mocr11q "STAS 34MoCr11q")
- [T30CrMo3 Indicative](/materials/stas/t30crmo3 "STAS T30CrMo3")
- [T34MoCr09 Indicative](/materials/stas/t34mocr09 "STAS T34MoCr09")

AS / NZS Australia / New Zealand · 2

- [4130 Indicative](/materials/aisi-sae/4130 "AS / NZS 4130")
- [4130H Indicative](/materials/aisi-sae/4130h "AS / NZS 4130H")

BDS Bulgaria · 6

- [25ChML Indicative](/materials/bds/25chml "BDS 25ChML")
- [25CrMo4 Indicative](/materials/din-en/25crmo4 "BDS 25CrMo4")
- [30ChM Indicative](/materials/bds/30chm "BDS 30ChM")
- [30ChML Indicative](/materials/bds/30chml "BDS 30ChML")
- [34CrMo4 Indicative](/materials/din-en/34crmo4 "BDS 34CrMo4")
- [35ChM Indicative](/materials/bds/35chm "BDS 35ChM")

ÖNORM Austria · 2

- [BOHLERV330 Indicative](/materials/onorm/bohlerv330 "ÖNORM BOHLERV330")
- [BOHLERV340 Indicative](/materials/onorm/bohlerv340 "ÖNORM BOHLERV340")

NBN Belgium · 1

- [34CrMo4 Indicative](/materials/din-en/34crmo4 "NBN 34CrMo4")

SFS Finland · 3

- [25CrMo4 Indicative](/materials/din-en/25crmo4 "SFS 25CrMo4")
- [G-25CrMo4 Indicative](/materials/sfs/g-25crmo4 "SFS G-25CrMo4")
- [G-34CrMo4 Indicative](/materials/din-en/g34crmo4 "SFS G-34CrMo4")

KS South Korea · 9

- [SCCrM1 Indicative](/materials/jis/sccrm1 "KS SCCrM1")
- [SCCrM3 Indicative](/materials/ks/sccrm3 "KS SCCrM3")
- [SCM420 Indicative](/materials/ks/scm420 "KS SCM420")
- [SCM420TK Indicative](/materials/jis/scm420tk "KS SCM420TK")
- [SCM430 Indicative](/materials/ks/scm430 "KS SCM430")
- [SCM432 Indicative](/materials/ks/scm432 "KS SCM432")
- [SCM435 Indicative](/materials/ks/scm435 "KS SCM435")
- [SCM435H Indicative](/materials/jis/scm435h "KS SCM435H")
- [SCM435TK Indicative](/materials/jis/scm435tk "KS SCM435TK")

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 Si

Iron — the balance, never listed by a standard — 97.2 % Cr — 1.1 % Mn — 0.8 % Si — 0.4 % Traces & impurities · 0.6 %

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

| Element | % by weight |
|---|---|
| C | 0.3–0.37 |
| Si | ≤ 0.4 |
| Mn | 0.6–0.9 |
| P | 0.035 |
| S | 0.035 |
| Cr | 0.9–1.2 |
| Mo | 0.15–0.3 |

Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum

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 | 0,30-0,37 | 0.300 | 0.370 | Range |
| Si | ≤0,40 | — | 0.400 | Max |
| P | 0,035 | 0.035 | 0.035 | Exact |
| S | 0,035 | 0.035 | 0.035 | Exact |
| Cr | 0,90-1,20 | 0.900 | 1.200 | Range |
| Mn | 0,60-0,90 | 0.600 | 0.900 | Range |
| Mo | 0,15-0,30 | 0.150 | 0.300 | 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: Ni.

## Physical & mechanical properties

Density 7,74 g/cm³ Exact

Transformation point Ac1 755 °C Exact

Transformation point Ac3 800 °C Exact · Ac3(Acm)

Transformation point Ar3 750 °C Exact · Ar3(Arcm)

Transformation point Ar1 695 °C Exact

Weldability weldable with restrictions As published: limited weldability.

Flake sensitivity susceptible As published: predisposed

Temper brittleness not susceptible As published: not 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

 12 conditions · 93 values

By thickness**Quenched and tempered · round products** source `steelnumber`

| Thickness mm | A% · Lo = 5,65 √So |
|---|---|
| ≤ 16 | 11 |
| 16 – 40 | 12 |
| 40 – 100 | 14 |
| 100 – 160 | 15 |
| 160 – 250 | 15 |

By thickness**Quenched and tempered** source `steelnumber`

| Thickness mm | Rm N/mm² |
|---|---|
| ≤ 8 | 1000 |
| 8 – 20 | 900 |
| 20 – 50 | 800 |
| 50 – 80 | 750 |

By dimension**Quenching 850 - 880°C, oil, Drawing 585 - 650°C** source `splav`

| Dimension mm | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² |
|---|---|---|---|---|---|
| max thickness 100 | 950 | 750 | 13 | 42 | 650 |
| max thickness 120 | 900 | 710 | 13 | 42 | 650 |
| max thickness 150 | 800 | 600 | 14 | 45 | 650 |
| max thickness 200 | 700 | 500 | 16 | 45 | 600 |

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

| Delivery state | Rm N/mm² | Re N/mm² | A% | Z% | HB |
|---|---|---|---|---|---|
| Tempering after normalizing | 690 | 440 | 9 | 25 | 201 |
| Tempering after quenching | 740 | 540 | 9 | 25 | 217 |

By thickness**Soft annealed** source `steelnumber`

| Thickness mm | Rm N/mm² | A80% |
|---|---|---|
| 0.3 – 3 | 600 | 16 |

By dimension**Quenching and drawing** source `splav`

| Dimension mm | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² |
|---|---|---|---|---|---|
| Ø 25 | 930 | 835 | 12 | 45 | 780 |

By delivery state**Treated to improve shearability** source `steelnumber`

| Delivery state | HB |
|---|---|
| Treated to improve shearability | 255 |

By delivery state**Soft annealed** source `steelnumber`

| Delivery state | HB | HV |
|---|---|---|
| Soft annealed | 223 | 185 |

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

| Delivery state | HB |
|---|---|
| (annealing) , GOST 4543-71 | 241 |

By delivery state**Quenched and tempered** source `steelnumber`

| Delivery state | HV |
|---|---|
| Quenched and tempered | 315 – 465 |

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 | 7.82 | 218 | — | — | — | 328 |
| 100 | 7.8 | 216 | 12.3 | 40.6 | 462 | 360 |
| 200 | 7.77 | — | 12.6 | 39.8 | — | — |
| 300 | 7.74 | 205 | 12.9 | 38.5 | — | 425 |
| 400 | 7.7 | 195 | 13.9 | 37.3 | — | 523 |
| 500 | 7.66 | 186 | 14.4 | — | — | 628 |
| 600 | — | — | 14.6 | — | — | — |

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

| Temperature °C | Elastic modulus GPa | Thermal expansion coefficient 10^-6/K | Thermal conductivity W/(m·K) | Specific heat capacity J/(kg·K) | Electrical resistivity nΩ·m | G GPa |
|---|---|---|---|---|---|---|
| 20 | 210 | — | — | 461 | 180 | 81 |
| 100 | 205 | 12.3 | 40.61 | — | — | 79 |
| 200 | — | 12.6 | — | — | — | — |
| 300 | 185 | — | 38.52 | — | — | 71 |
| 400 | — | 13.9 | 37.26 | — | — | — |
| 600 | — | 14.6 | — | — | — | — |

6 further values are held for this grade under a condition the source did not name — a bound with no quantity attached. They are withheld rather than shown against a guessed condition.

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.

## Heat treatment

**GB /T 18248-2021**

In this order Tube test specimen

1. Quenching Temperature not stated
2. Normalizing Temperature not stated
3. Tempering 500–600 °C

    Cooling Oil

**GB /T 3077-2015**

In this order

1. Quenching 880 °C
2. Tempering 650 °C

**GB /T 6478-2015**

In this order Test specimen diameter d=25

1. Quenching 830–870 °C

    Cooling Oil
2. Tempering 500–600 °C

**GB T 6478-2001**

In this order

1. Quenching 830–870 °C

    Quenchant Water or Oil
2. Tempering 500–600 °C

**NB /T 47008-2017**

Single operation t≤300

- Tempering 580 °C

Supply condition

- Annealing
- Quenching and Tempering d=25
- Quenching and Tempering d=25
- Annealing and Tempering and Normalizing Supply condition
- Spheroidize annealing Plate and Strip
- Quenching and tempering ≤100

Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied.

Source: [www.caishuku.com](https://www.caishuku.com/detail/azhlNWIxMTg0NDk_ "Source: www.caishuku.com")

## Similar grades — and why

Selection rule, stated so you can disagree with it: same number class 1.7, 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.

[28Cr4 1.7030

Cr 0,90-1,20 · Mn 0,60-0,90

- ΔCr 0.00
- ΔMn 0.00
- 28 designations](/materials/din-en/28cr4 "28Cr4")[1.7033 1.7033

Cr 0,90-1,20 · Mn 0,60-0,90

- ΔCr 0.00
- ΔMn 0.00
- 56 designations](/materials/material-no/1.7033 "1.7033")[37Cr4 1.7034

Cr 0,90-1,20 · Mn 0,60-0,90

- ΔCr 0.00
- ΔMn 0.00
- 104 designations](/materials/din-en/37cr4 "37Cr4")[1.7035 1.7035

Cr 0,90-1,20 · Mn 0,60-0,90

- ΔCr 0.00
- ΔMn 0.00
- 67 designations](/materials/material-no/1.7035 "1.7035")[34CrS4 1.7037

Cr 0,90-1,20 · Mn 0,60-0,90

- ΔCr 0.00
- ΔMn 0.00
- 13 designations](/materials/din-en/34crs4 "34CrS4")[37CrS4 1.7038

Cr 0,90-1,20 · Mn 0,60-0,90

- ΔCr 0.00
- ΔMn 0.00
- 10 designations](/materials/din-en/37crs4 "37CrS4")

## 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=12d5aa80-ddcb-4ddf-b530-27c29873c842&designation=7a1b024c-6688-417b-a3cb-3871adb2852e "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/aisi-sae/4137.pdf "Datasheet as PDF")