INCLUDES APPENDIX (SEC A & B)

CEMS A-40, covering case hardened iron and steel parts, is in two sections:

Section A – Carburizing and Carbonitriding

Section B - Aerated Salt Nitriding And Gaseous Ferritic Nitrocarburizing

INTRODUCTION

This specification covers the Company's requirements for the properties of hardened case produced by the diffusion of carbon or carbon and nitrogen into the surface of steel parts. All properties shown refer to finished parts.

Restricted Chemical Substances

Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the CEMS B-50 specification.