Employee in Waelzholz production wearing hearing protection and glasses for the manufacturing of quenched and tempered steels with high formability and carbon content
Steels for hardening and tempering

Steels for hardening and tempering: good formability and high carbon content

The ideal combination for stability

Excellent formability combined with a high carbon content is the trademark of our steels for quenching and tempering. These steels can undergo additional heat treatment by the customer to be hardened and tempered. Steels for hardening and tempering are the base material for the toe caps in safety boots or for the plates for timing chains in automobile engines.

They are also very suitable for fine blanking and ensure extremely smooth and precise stamped surfaces. Our steels for hardening and tempering can also be bonderized  in a subsequent treatment step in order to extend tool life. There are several ways to benefit from the potential of our steels for quenching and tempering.

 

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Steels for quenching and tempering – DIN EN 10132-2021

Unit system
Standard Annealed to spheroidized cementite Annealed to spheroidized cementite-dead soft
Material No. AISI JIS EN DIN Yield strength
in MPa
(max.)		 Tensile strength
in MPa
(max.)		 HBW
(max.)		 Yield strength
in MPa
(max.)		 Tensile strength
in MPa
(max.)		 HBW
(max.)
1.1151 1020
1023		 S22C C22E Ck 22 290 440 136 250 410 127
1.1158 1025 S25C C25E Ck 25 300 460 143 255 420 130
1.1178 1030 S30C C30E Ck 30 315 480 149 265 440 136
1.1181 1035 S35C C35E Ck 35 320 490 152 280 460 143
1.1186 1040 S40C C40E Ck 40 325 500 155 285 470 146
1.1191 1045 S45C C45E Ck 45 335 510 158 290 480 149
1.1203 1055 S55C C55E Ck 55 350 540 167 310 510 158
1.1206 1050 S50C C50E Ck 50 340 520 161 300 500 155
1.1221 1060 S60C C60E Ck 60 365 560 174 320 530 164
1.1177 25 Mn 4 310 480 149 280 460 143
1.7003 5045
5046		 38 Cr 2 335 510 158 290 480 149
1.5530 20MnB5 310 480 149 280 460 143
1.7182 50B46 27MnCrB5-2 325 500 153 290 470 145
1.7218 4130 SCM430 25CrMo4 25CrMo4 335 510 158 295 490 152
1.7220 4135 SCM435 34CrMo4 34CrMo4 335 540 167 310 510 158
1.7225 4140 SCM440 42CrMo4 42CrMo4 360 550 171 315 520 161
1.7228 4150 SCM445 50CrMo4 50CrMo4 380 580 180 330 550 171
1.8159 6150 SUP10 51CrV4 50CrV4 380 580 180 330 550 171
Other grades available upon request

Application examples for steels for hardening and tempering

Bicycle chain made of easily formable tempered steel with high carbon content for durable and robust links and bushings after heat treatment
Bicycle chains

Steel for hardening and tempering with excellent formability

Our steels for hardening and tempering are characterized by exceptional formability and a high carbon content. This makes them easy to transform into plates and bushes for bicycle chains, and subsequent thermal treatment makes them extremely robust and durable.

Chain link made of tempered steel for industrial chains with high fatigue strength wear resistance and long service life after heat treatment
Chain links

Fatigue strength with steel for hardening and tempering

Our steels for hardening and tempering combine easy processing with a long service life of the finished heat-treated part. This is why they are often used for the links in industrial chains of all kinds, which, for example, must be particularly wear-resistant as drive or gear chains.

Centrifugal clutch housing made of nearly isotropic tempered steel for chainsaws with high uniformity of properties and dimensional stability across batches
Centrifugal clutch housing

Almost isotropic steel for hardening and tempering

Centrifugal clutches make it possible to start a drive motor, for example of a chainsaw, without any load. Centrifugal clutch housings need to exhibit nearly isotropic properties. For this purpose, Waelzholz’s steel for hardening and tempering offers highly uniform properties and geometric sizes across many delivery batches.

Sprocket made of tempered steel with high wear resistance precise chain guidance and durable robust design after heat treatment
Nose sprockets

Wear resistance with steel for hardening and tempering

High-performance nose sprockets are extremely wear-resistant and feature a high-precision chain guide. Whether in bicycles or industrial drives, our steel for hardening and tempering can be precisely formed into the required shape. Thanks to its high carbon content, it is robust and durable after piece hardening.

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