Magnetics Business & Technology - September/October 2019 - 12

FEATURE ARTICLE
Common
Name:

Includes:

Corrosion
Resistance:

200 Series
Stainless Steel

201, 202, 205, etc.

Fair

301, 302, 303,
304, 321, 347
18/8, A2
300 Series
Stainless Steel
(austenitic)

316, Sometimes
18/8

Excellent

310, 305

Excellent

Ferritic: 430 and
446
400 Series
Stainless Steel

Duplex Steel
17-4PH

Good

Martensitic

Main Characteristics:
Cheap, Hard, Strong

Biocompatible,
Autoclavable, Weldable.
310 is more stable at
high temperatures but
more expensive than
400 series.

Relative Magnetism: ***
Slightly magnetic:
1.004-3**
Slightly magnetic [1] :
1.004-3**

Non-magnetic [2] : ~1.0031.01 (Especially LN types)

Non-magnetic[3]: ~1

Good

Wear resistant

Magnetic[4]: 1000-1800*

410,
420,
440

Good

Wear resistant

Magnetic[5]: 750-950*

416

Fair

Machinable

Magnetic: ~750*

Strong, harder to
machine
Cheaper, lighter, high
strength

Magnetic (halfway between
austenitic and ferritic alloys)
Magnetic (similar to
martensitic alloys)

Different alloys

Can be fairly magnetic [6]

Cheap and strong

Magnetic: ~100 [7]

Inert, hard, biocompatible

Non-magnetic, typically safe
for MRI

2XXX series

Good

630, 1.4542 (EU)

Good

Stainless Steel
Welds, Casts

Various grades

Various
grades

Plain Carbon
Steel

Various grades

Poor,
unless coated

Cobalt Chrome

Various grades

Excellent

Nitinol

Nitinol 55 and
Nitinol 60

Good

Bendable, reverts shape

Non-magnetic : <1.002 [8]

Invar

FeNi36, FeNi42,
Inovco

Good

Extremely low CTE

Magnetic: ~1500*[9]

Permalloy

Various grades

Poor

Mu-Metal

A753 Alloy4 &
similar alloys

Fair

Excellent for Magnetic
Shielding

Very Magnetic: ~100,000
Very Magnetic: ~90,000

*when annealed to increase magnetic properties
**unless annealed to remove magnetic effects
***...as a general rule. Actual magnetism is relative, and highly dependent on processing (such as working, welding, or annealing).
In units of µ/µ
http://www.MagneticsMag.com

Magnetics Business & Technology - September/October 2019

Table of Contents for the Digital Edition of Magnetics Business & Technology - September/October 2019

Magnetics Business & Technology - September/October 2019
Contents
Editor’s Choice/ Features
Advancements in Transcranial Magnetic Stimulation Open Up Promising New Therapies for Array of Neural Conditions
Barcoded Magnetic Beads and New Diagnostic Systems Revolutionize Battle Against Infectious Disease
European Space Agency Swarm Mission Pinpoints New Magnetic North and Geomagnetic Jerks
Research & Development
Product News
Industry News
Marketplace/ Advertising Index
Magnet Summer Camp Spontaneous Thoughts by Dr. Stan Trout
Spontaneous Thoughts
Magnetics Business & Technology - September/October 2019 - Magnetics Business & Technology - September/October 2019
Magnetics Business & Technology - September/October 2019 - Cover2
Magnetics Business & Technology - September/October 2019 - Contents
Magnetics Business & Technology - September/October 2019 - Editor’s Choice/ Features
Magnetics Business & Technology - September/October 2019 - 5
Magnetics Business & Technology - September/October 2019 - Advancements in Transcranial Magnetic Stimulation Open Up Promising New Therapies for Array of Neural Conditions
Magnetics Business & Technology - September/October 2019 - 7
Magnetics Business & Technology - September/October 2019 - 8
Magnetics Business & Technology - September/October 2019 - 9
Magnetics Business & Technology - September/October 2019 - 10
Magnetics Business & Technology - September/October 2019 - 11
Magnetics Business & Technology - September/October 2019 - 12
Magnetics Business & Technology - September/October 2019 - 13
Magnetics Business & Technology - September/October 2019 - Barcoded Magnetic Beads and New Diagnostic Systems Revolutionize Battle Against Infectious Disease
Magnetics Business & Technology - September/October 2019 - 15
Magnetics Business & Technology - September/October 2019 - 16
Magnetics Business & Technology - September/October 2019 - 17
Magnetics Business & Technology - September/October 2019 - Research & Development
Magnetics Business & Technology - September/October 2019 - 19
Magnetics Business & Technology - September/October 2019 - Product News
Magnetics Business & Technology - September/October 2019 - 21
Magnetics Business & Technology - September/October 2019 - 22
Magnetics Business & Technology - September/October 2019 - 23
Magnetics Business & Technology - September/October 2019 - Industry News
Magnetics Business & Technology - September/October 2019 - 25
Magnetics Business & Technology - September/October 2019 - 26
Magnetics Business & Technology - September/October 2019 - 27
Magnetics Business & Technology - September/October 2019 - Marketplace/ Advertising Index
Magnetics Business & Technology - September/October 2019 - 29
Magnetics Business & Technology - September/October 2019 - Spontaneous Thoughts
Magnetics Business & Technology - September/October 2019 - Cover3
Magnetics Business & Technology - September/October 2019 - Cover4
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