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 /  /  /  / Case-hardened steels

Case-hardened steels

Usage

Photo of plate springs

When either hot- or cold-rolled, casehardened steels are predominantly used for transmission parts (Plate springs, clutch disks, 16MnCr5 view image). The hot-rolled steels offer good punching quality and formability. After case-hardening, the finished components have a very strong core, whereas the surface is characterized by good wear-resistance.

As the melting and hot-rolling conditions have an effect on further treatment at the customer, the customer should always state the intended use when placing an order.

Standards

Europe Material no. DE FR IT GB ES US JP FK1)
DIN EN ISO 683-3 DIN 172102) NAF 35-551 UNI 8788 BS 970-1 UNE 36013 SAE J 403/ J 1249/ J 404 JIS G 4051
C10E 1.1121 Ck 10 XC 10 C 10 045 M 10 C 10 k 1010 S 10 C A
C15E 1.1141 Ck 15 - C 15 - C 16 k 1015 S 15 C A
C16E 1.1148 - XC 18  - 080 M 15 - - - A
16MnCr5 1.7131 16 MnCr 5 16 MC 5 16 MnCr 5 590 M 17 16 Mn Cr 5 5115 - B
20MnCr5 1.7147 20 MnCr 5 20 MC 5 20 MnCr 5 - - 5120 S MnC 21 H B

Chemical composition in percent by weight [%] (Heat analysis)

Grade C Si Mn P S Cr Cu Mo Ni
max. max. max. max. max. max.
C10E 0,07 - 0,13 0,15 - 0,40 0,30 - 0,60 0.025 0.035 ≤ 0,40 0.30 0.10 0.40
C15E 0,12 - 0,18 0,15 - 0,40 0,30 - 0,60 0.025 0.035 ≤ 0,40 0.30 0.10 0.40
C16E 0,12 - 0,18 0,15 - 0,40 0,60 - 0,90 0.025 0.035 ≤ 0,40 0.30 0.10 0.40
16MnCr5 0,14 - 0,19 0,15 - 0,40 1,00 - 1,30 0.025 0.035 0,80 - 1,10 0.40 - -
20MnCr5 0,17 - 0,22 0,15 - 0,40 1,10 - 1,40 0.025 0.035 1,00 - 1,30 0.40 - -

Condition of delivery, scope of testing and certificate

The provisions of EN 10084, chapters 6.4.1 und 7 shall apply for delivery and inspection.
All case-hardened steels are delivered in a hot-rolled and untreated condition.

Certificates according to DIN EN 10204 can be supplied as follows: IT, DUN, FAX, e-mail, paper.

© Salzgitter Flachstahl GmbH
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