Carbon & Alloy Steel

EN8

 0.4% medium carbon steel. A genereal purpose steel for applications requiring added strength and
 superior tensile properties to mild steel specifications.

EN9

 0.5% carbon steel giving higher tensile than EN8. Can be induction or flame hardened.

EN14

 A carbon manganese steel.

EN16

 A low alloy high tensile steel.

EN19

 1% chromium molybdenum high tensile steel. Suitable for highly stressed applications where
 greater strength is required.

EN24

 Nickel chromium molybdenum high tensile steel. Has good wear and shock resistance and is
 suitable for tensile ranges up to 1550 N/mm².

EN30B

 4¼% nickel steel. Achieves a good through hardness with air or oil hardening. It is capable of
 taking a good polish and is widely used as a plastic mould steel.

EN31

 High carbon alloy steel which achieves a high degree of hardness with compressive strength and
 abrasion resistance.

EN32

 Special mild case hardening steel which can provide a hard wearing surface with a tough core.   

EN36

 Nickel chromium case hardening steel. Give a very hard surface with a strong core and retaining a
 high degree of toughness.

EN40B

 3% chromium molybdenum nitriding steel. It will achieve a good core strength with a hard
 nitrided  surface. The nitriding process leaves the component scale free.

EN41

EN43

 Unalloyed medium carbon spring steel type specification.

EN45

 Silicon mangenese alloy spring steel.

EN47

SAE 8620

 A low alloy case hardening steel.    

AISI 4140

 Chromium molybdenum high tensile steel. Supplied 18-22HRc (Hardness Rockwell)

AISI 4145

 Chromium molybdenum high tensile steel similar to 4140. Supplied 30-36HRc

 AISI 4130

 AISI 6150