Material 1.7131

Case hardening steel

The classic among case-hardening steels 1.7131.
The material 16MnCr5 is a chromium-manganese alloyed case-hardening steel.
Machine builders often use 1.7131 for machine parts
and vehicle construction.

You can get this case-hardening steel from us in the following forms:

- Round steel
- bright steel
- Sheet
- hot-rolled flat steel
- sawn flat and square pieces
- drilled pipes

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1.7131

Standards

HDIN / EN US-Standard AFNOR UNI JIS request
16MnCr5 AISI 5115 AISI 5117 SAE 5115 UNS G51150 UNS G51170 request

Material Category: Case hardening steel

Applications

1.7131 is very often used for the following components.
connecting rods
gears
camshafts
gudgeon pin

Heat Treatment

Soft annealing (+A) at 650 - 700 C°
Case hardening at 880 - 980 C°, cooling in oil, polymer
Direct hardening at 880 - 980 C°, cooling in oil, polymer
Core hardening at 860 - 900 C°, cooling in oil, polymer
Case hardening at 780 - 820 C°, cooling in oil, polymer
Temper at 150 - 200 C°, cooling in the air

Weldability

The material 1.7131 is usually weldable.

Chemical Composition

C % Si % Mn % P % S % Cr %
0,14 - 0,19 max 0,40 1,00 - 1,30 max 0,025 max 0,035 0,80 - 1,10

 

Product Specifications

DIN EN 10084
DIN EN 10132-2
DIN EN 10263-3
DIN EN 10277
DIN EN 10297-1
DIN EN ISO 683-3

Mechanical Properties

DIN EN 10084 Härte HBW
behandelt auf Härtespanne 156 - 207
behandelt auf Ferrit-Perlit Gefüge und Härtespanne 140 - 187
normalgeglüht 138 - 187
weichgeglüht max 207 HBW

 

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