1018 Steel Applied To Camming Device Eyes

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6/11/2012. 2. Introduction. The purpose of our presentation is to discuss the uses and properties of 1018 Steel and how it can be applied to camming devices used in rock- climbing applications.. 6/11/2012. 3. Topics of Discussion. What is steel?General Characteristics of 1018Why 1018?Work Harden

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1018 Steel Applied To Camming Device Eyes

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1. 6/12/2012 1 1018 Steel Applied To Camming Device Eyes

2. 6/12/2012 2 Introduction The purpose of our presentation is to discuss the uses and properties of 1018 Steel and how it can be applied to camming devices used in rock- climbing applications.

3. 6/12/2012 3 Topics of Discussion What is steel? General Characteristics of 1018 Why 1018? Work Harden Processing Heat Treating/ Cold Rolling Applications in rock climbing gear Other Applications

4. 6/12/2012 4 What is steel? Steels are alloys of iron and carbon Among the prominent structural engineering materials Given AISI or SAE numbering First two numbers designate the type of alloying element that has been added to the iron and carbon Last two numbers represent the # of hundredths of a percent of carbon content For Example: 1018 steel is a plain carbon steel with only a minimal amount of other alloying elements (10xx series) and contains 0.18 % carbon.

5. 6/12/2012 5 General Characteristics of Steel Alloys Low Carbon/Alloy Steel Term used when up to 5% of alloying elements (nickel, chromium, molybdenum, manganese, silicon) are added. Alloys increase hardenability to optimize mechanical properties and toughness. Alloys decrease environmental degredation. 1018: High magnesium content in comparison to other low carbon steels.

6. 6/12/2012 6 Composition of 1018 Carbon: 0.14- 0.20% Manganese: 0.6- 0.9% Phosphorous: 0.04% Max Sulfur: 0.05% Max

7. 6/12/2012 7 Why 1018? High machinability Fracture toughness Surface hardness Inexpensive Yield strength in 50,000psi range

8. 6/12/2012 8 Characteristics of Cold Drawn 1018 Steel Tensile Strength: 440Mpa Yield Strength: 370Mpa Elongation in 2in: 15% Reduction in area: 40% Hardness: 126HB Avg. Machinability Rating: 70% 

9. 6/12/2012 9 Work Hardening

10. 6/12/2012 10 Rolling Methods

11. 6/12/2012 11 Result of cold rolling

12. 6/12/2012 12 Graphical Results Note: Yield strength and Ultimate strength is reduced as diameter increases. This is due to the increase of dislocations at grain boundaries

13. 6/12/2012 13 Applications in climbing gear

14. 6/12/2012 14 Other Applications Suitable for parts requiring cold forming such as swaging, crimping, and bending Exceptional for carburized parts requiring soft core and surface hardness Gears Pinions Worms Kingpins Ratchets Dogs Etc…

15. 6/12/2012 15 References

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