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Case-hardened steels

Usage

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. D F I GB E USA J FK1)
EN 10084 DIN 17210 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
max. max. max.
C10E 0.07 - 0.13 0.40 0.30 - 0.60 0.035 0.035 -
C15E 0.12 - 0.18 0.40 0.30 - 0.60 0.035 0.035 -
C16E 0.12 - 0.18 0.40 0.60 - 0.90 0.035 0.035 -
16MnCr5 0.14 - 0.19 0.40 1.00 - 1.30 0.025 0.035 0.80 - 1.10
20MnCr5 0.17 - 0.22 0.40 1.10 - 1.40 0.025 0.035 1.00 - 1.30

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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