Home

This page exists to help the home shop machinists, casters, model makers across the globe to try and get some of the terminology straight - same or similar stuff, different name.

Please mail me if you think there is something that should be on this list ;-)

Materials

Aluminium: Alloys
			Notes
HE15	2014	AlCuSiMn
HE30	6082	AlSi1MgMn	6061 is close
Aluminium:  Casting alloys
			Notes
LM4	308
LM25	A356	AlSi7Mg
Brass
			Notes
CZ121	UNS C38500	CuZn39Pb3
Steel: Carbon
			Notes
EN1A / 230M07	AISI 1213	CF9SMn28	AKA Mild Steel
EN3	AISI 1017/1022
EN3A / 070M20	AISI 1023	C22
EN3B / 080A15	AISI 1012/1017	C15
EN3C	AISI 1022
EN3D	AISI 1017/1022
EN8 / 080M40	AISI 1040	C40
EN8B / 080M36	AISI 1035
EN8D / 080A42	AISI 1042
EN8M / 212M36	AISI 1146	40C10S18
EN9 / 070M55	AISI 1055	C55
EN32A / 045M10	AISI 1010	C10
EN32M / 210M15	AISI 1117
Steel: Chromium
			Notes
EN19 / 708M40	AISI 4140	42CrMo4
EN24 / 817M40	AISI 4340	40Ni2Cr1Mo28
Silver Steel	AISI W5		AKA "drill rod"
Steel: Stainless
			Notes
EN58AM / 303S21	AISI 303
EN58E / 304S11	AISI 304
EN58J / 316S11	AISI 316

Note: The EN numbers date from the 1950's in the UK, there are new (and less memorable numbers) in use now like 817M040.  The EN numbers have been included as many model engineering plans date from this period.  Warning: the equivalents shown above are exactly that - as specifications vary slightly from country to country, they may not be identical in terms of composition or strength.

These pages are maintained by Duncan Munro.  All content on this site is Copyright ©2002-2024 Duncan Amplification.
Warning: These pages consist of images and descriptions of equipment which can reach high temperatures creating hazardous and potentially dangerous situations.  These pages should not be taken as a step by step guide on how to construct any items or carry out any particular procedure, nor should any references to safety contained herein be taken to guarantee safety in all situations.