Magnetic bronze

Magnetic bronze

This topic has 5 replies, 4 voices, and was last updated 30 September 2022 at 19:56 by roy entwistle.

Viewing 6 posts - 1 through 6 (of 6 total)

Author

Posts
30 September 2022 at 14:04 #615565
Garry Coles
Participant
@garrycoles69390
Hi. Many years ago I obtained two 12 in X 1 in diameter bronze looking round bar. I didn't know what sort of bronze it was, so it was not going to be used on any thing important. I thought it would come in handy for something one day. And today it did. I am machining up some pipe flanges for a globe valve. The bar machines very nicely. Now, when I was cleaning the lathe afterwards I noticed that a magnet that I had close by had some of the bronze on it. On closer inspection I found it to be only very slightly magnetic. Can someone enlighten me as to what this sort of bronze is.

Thanks

Garry
Advert

30 September 2022 at 14:04 #28857
Garry Coles
Participant
@garrycoles69390
30 September 2022 at 14:39 #615572
Michael Gilligan
Participant
@michaelgilligan61133
Garry

Search here **LINK** for magnetic bronze and all should be revealed

https://copper.org/search.php?q=&submit=Search

MichaelG.

.

”Thus, for example all alloys up to 80% Ni are paramagnetic at 150 ºC while at 20 ºC alloys containing more than 68.5% nickel exhibit ferromagnetic behaviour.”

Edited By Michael Gilligan on 30/09/2022 14:41:17
30 September 2022 at 14:51 #615575
SillyOldDuffer
Moderator
@sillyoldduffer
If it's magnetic, and not exotic, probably a Bronze with Iron, Nickel or Cobalt in it. Could be CA104 ; it's an Aluminium Bronze containing about 5% Iron and 5% Nickel.

Good stuff judging by the specification.

Dave
30 September 2022 at 15:59 #615579
Garry Coles
Participant
@garrycoles69390
Thanks. Never realised that the bronze family had so many variations.
30 September 2022 at 19:56 #615598
roy entwistle
Participant
@royentwistle24699
Seeing that it's an alloy of copper, anything can be added to it, not necessarily other metals.
Author

Posts

Viewing 6 posts - 1 through 6 (of 6 total)

Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

Code of Conduct

Latest Replies

Viewing 25 topics - 1 through 25 (of 25 total)

- Topic
- Voices
- Posts
- Last Post
- Stronger Filament 1 2
  Started by: BOB BLACKSHAW 1 in: 3D Printers and 3D Printing
- 13
- 42
- 7 November 2026 at 00:47
  mart7mcfl7
- New Guy
  Started by: mart7mcfl7 in: Introduce Yourself – New members start here!
- 1
- 1
- 7 November 2026 at 00:27
  mart7mcfl7
- New Mystery Lathe
  Started by: mart7mcfl7 in: Manual machine tools
- 6
- 13
- 7 November 2026 at 00:23
  mart7mcfl7
- Stepper Motor for Leadscrew
  Started by: James A in: Workshop Tools and Tooling
- 10
- 13
- 6 November 2026 at 21:38
  Huub
- Micrometer ratchets
  Started by: Graeme Seed in: Workshop Tools and Tooling
- 11
- 19
- 6 November 2026 at 19:11
  Graeme Seed
- Inserts type for old milling cutter
  Started by: Sonic Escape in: General Questions
- 7
- 10
- 6 November 2026 at 19:06
  Phil Cox
- Mitotoyo dial caliper battery or innards.
  Started by: Clive Farrar in: General Questions
- 12
- 15
- 6 November 2026 at 18:12
  bernard towers
- Unusual dual speed pulley on motor
  Started by: gerry madden in: Manual machine tools
- 10
- 20
- 6 November 2026 at 17:31
  Macolm
- WAR FINISH
  Started by: Speedy Builder5 in: The Tea Room
- 12
- 14
- 6 November 2026 at 17:27
  old mart
- Most used ‘rubbish’ tool
  Started by: jaCK Hobson in: The Tea Room
- 10
- 16
- 6 November 2026 at 17:08
  Neil Wyatt
- Richard Simmonds’ “How To Make A Weight Driven Clock”
  Started by: iacooper in: Clocks and Scientific Instruments
- 8
- 16
- 6 November 2026 at 16:37
  iacooper
- Shape of Boxford fixed steady blocks
  Started by: Grindstone Cowboy in: Beginners questions
- 7
- 10
- 6 November 2026 at 16:27
  old mart
- Blank posts in forum
  Started by: Mark Rand in: New Forum Software questions, comments and Test Threads
- 7
- 8
- 6 November 2026 at 09:51
  JasonB
- Onshape Learning
  Started by: BOB BLACKSHAW 1 in: CAD – Technical drawing & design
- 6
- 14
- 6 November 2026 at 09:17
  BOB BLACKSHAW 1
- Warco GH600 Upgrades (DRO and Bed Protection)
  Started by: Richard Kirkman 1 in: Work In Progress and completed items
- 4
- 13
- 6 November 2026 at 09:17
  Richard Kirkman 1
- 2inch Fowler plans
  Started by: bob53page in: Traction engines
- 6
- 11
- 5 November 2026 at 20:56
  JasonB
- Model Turbines 1 2 … 26 27
  Started by: Turbine Guy in: Stationary engines
- 28
- 664
- 5 November 2026 at 20:02
  Turbine Guy
- Building the V-Twin “Kelsey” 1 2 … 4 5
  Started by: JasonB in: Stationary engines
- 18
- 123
- 5 November 2026 at 19:20
  Jim Nic
- BCA MK III Jig Borer
  Started by: pjh in: Help and Assistance! (Offered or Wanted)
- 7
- 10
- 5 November 2026 at 19:19
  duncan webster 1
- Minnie Traction Engine – Damper Hinge Plate
  Started by: Dominic Bramley in: Traction engines
- 6
- 15
- 5 November 2026 at 18:56
  Dominic Bramley
- Unimat 3 baseplate
  Started by: mart7mcfl7 in: Manual machine tools
- 4
- 9
- 5 November 2026 at 17:41
  mart7mcfl7
- Richard B’s Minnie. 1 2
  Started by: Richard B in: Traction engines
- 4
- 26
- 5 November 2026 at 16:30
  Richard B
- A small Hobbing Machine
  Started by: Michael Gilligan in: Workshop Tools and Tooling
- 3
- 5
- 5 November 2026 at 14:08
  Michael Gilligan
- 3d Printed Carriage Stop for Warco WM180
  Started by: James A in: Workshop Tools and Tooling
- 1
- 1
- 5 November 2026 at 07:51
  James A
- Mitutoyo Dial Calliper dial?
  Started by: Bo’sun in: Workshop Tools and Tooling
- 4
- 7
- 4 November 2026 at 22:03
  Pete

Viewing 25 topics - 1 through 25 (of 25 total)

View full reply list.

Latest Issue

November 2026

Buy Latest/Back Issues

Newsletter Sign-up

Latest Replies