• Atlas Technical Notes

These Technical Notes have been prepared by technical department of Atlas Steels and provide technical information related to the selection, application, fabrication and use of special steels.

Qualitative Sorting Tests for Steels

An overview of tests intended for rapid, inexpensive and usually non-destructive and on-site sorting of grades of stainless steel.

Atlas Steels Technical Note No.1

Pitting & Crevice Corrosion of Stainless Steel

  • What is pitting corrosion?
  • What is crevice Corrosion?
  • Environmental factors
  • Which steels are susceptible
  • Measurement of resistance to corrosion attack
  • Pitting Resistance Equivalent Number (PRE)
  • Effect of welding on corrosion resistance
  • Measures to reduce pitting and crevice corrosion

Atlas Steels Technical Note No.2

Stainless Steel – Properties & Equivalent Grades

  • Chemical Composition
  • Mechanical Properties
  • Typical Physical Properties
  • Comparison of International grade specifications of stainless steel

Atlas Steels Technical Note No.3

Machining of Stainless Steels

  • Machinability of stainless steel
  • Free-machining stainless steel
  • Improved Machining stainless steel
  • Cutting Fluids
  • Rules to Optimise machining of stainless steel
  • Maintaining corrosion resistance of machined parts
  • Guide to machining speeds and feeds
  • Drilling stainless steel
  • Turning stainless steel

Atlas Steels Technical Note No.4

Cleaning, Care & Maintenance of Stainless Steel

  • Why maintenance is necessary
  • Maintenance during installation
  • On-going maintenance
  • Good housekeeping during fabrication
  • Cleaning methods ? passivation, pickling
  • Recommendations for cleaning stainless steel product
  • Precautions ? acids, solvents, chlorides

Atlas Steels Technical Note No.5

Lifecycle Costing of Stainless steel

  • Considerations to be taken into account
  • Evaluation of LLC
  • LLC calculations
  • Examples of LCC analysis
  • Sensitivity analysis of LCC estimates

Atlas Steels Technical Note No. 6

Galvanic Corrosion 

  • What is galvanic corrosion?
  • What conditions are needed
  • The area effect
  • Crevices and stagnant conditions
  • Passive surface films
  • Avoidance of galvanic Corrosion

Atlas Steels Technical Note No. 7

“L”, “H” and Standard Grades of Stainless Steel

  • What “L” Grades are and why they are used
  • What “H” Grades are and why they are used
  • What the differences are
  • Alternative grade usage
  • Dual certification of stainless steel

Atlas Steels Technical Note No. 8

Stainless Steel Tube for the Food Industry

  • Specification Comparison
    • Material
    • Manufacture
    • Dimensional tolerances
    • Surface finish
    • Weld bead
    • Heat treatment
    • Mechanical properties
    • Non-destructive inspection
  • Which specification to use?

Atlas Steels Technical Note No. 9

 Restrictions of Hazardous Substances (RoHS)

  • Background
  • Maximum allowable levels
  • Product exemptions

Atlas Steels Technical Note No. 10

Magnetic Response of Stainless Steels

  • Magnetic properties of materials
  • Which metals are magnetic?
  • Which metals are non-magnetic?
  • Welds and castings
  • The effect of cold work
  • Heat treatment
  • Does magnetic response matter?
  • Magnetically soft stainless steel
  • Sorting of steels

Atlas Steels Technical Note No. 11

Pipe Dimensions

  • Specifications
  • Outside diameter
  • Wall thickness
  • Where carbon and stainless steel schedules are equal
  • he differences
  • Stainless steel pipe with Sch 80
  • Tolerances
  • Australian Standards
  • Pipe designate by size

Atlas Steels Technical Note No. 12

Atlas CR12 & Atlas CR12Ti – The 12% Chromium Ferritic Stainless Steels

Properties and applications of the 12% Cr utility ferritic stainless steels.

Atlas Steels Technical Note No. 13

Aluminium Alloys 5052 and 5251

The differences between these similar alloys, and why it is important to understand the differences
Atlas Steels Technical Note No. 14

The Complete Set

Click on the link below to view a complete set of technical notes prepared by the Atlas Steels technical department

Complete Set of Technical Notes (1 Mb)