Nitrided Steel Sheets

Examples of easily nitridable steels include the sae 4100 4300 5100 6100 8600 8700 9300 and 9800 series uk aircraft quality steel grades bs 4s 106 bs 3s 132 905m39 en41b stainless steels some tool steels h13 and p20 for example and certain cast irons.

Nitrided steel sheets.

An approximately 10 μm thick compound layer consisting of fe nitrides was formed in the topmost layer beneath the surface of the steel sheets by nitriding. The processing associated with nitriding does have some advantages in avoiding problems such as quench cracking and distortion. Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case hardened surface. Case hardening is a simple process of hardening the surface of a metal object.

Etched with a 10 1 mixture of 4 picral and 2 nital 1250x oil immersion. Microstructure of salt bath nitrided resulfurized 1215 carbon steel with a compound zone black arrow no diffusion zone and some nitride needles white arrows in the ferrite grains. Nitriding steel is steel treated by a highly specialized surface hardening process known as nitriding which is a heat treating process that diffuses nitrogen into the surface of a metal to create a case hardened surface. They are also used on medium and high carbon steels titanium aluminium and molybdenum in 2015 nitriding was used to generate unique duplex microstructure martensite austenite austenite ferrite.

0 10 to 0 45 n. Tool steels heat resistant steels e g. Provided is a steel sheet for soft nitriding treatment which has a chemical composition consisting of in mass c. Less than or equal to 0 01 ti.

The steel sheets without and with pre aging were soft nitrided at 570 c for 3 h by tufftriding which uses a salt bath nihon parkerizing. Stainless steels ferritic martensitic austenitic ph grades cast iron grey or nodular. 0 to 0 1 v. More than or equal to 0 02 and less than 0 07 si.

Fig 3 schematic of a typical nitrided case structure nitriding steels. Hardened multipurpose 4140 alloy steel bars. Nitriding steel stockholders and suppliers delivering to the whole of the uk. Less than or equal to 0 01 al.

These processes are most commonly used on high carbon low alloy steels. 0 to 0 1 mo. Nitriding steel specifications are available in round bar flat bar and steel plate. These sheets and bars are hardened for increased abrasion and impact resistance.

0 to 0 1 cr. Steel sheets and bars. Also known as flat stock the thickness on these sheets and bars is held to a tight tolerance. 1 1 to 1 8 p.

Less than or equal to 0 10 mn. Special nitriding steels such as nitralloy. 0 01 to 0 10 nb.