Reference Materials

- ASTM E8/E8M-13 Standard Test Methods for Tension Testing of Metallic Materials
- Tensile Testing (ASM Handbook)

- Rules for this report:
- Do NOT include raw data in report
- ALWAYS INDICATE UNITS
**Summarize**the data recommended by ASTM E8 – YOU WILL**NEED TO LOOK IT UP**.- Indicate if any data points are outliers and are removed
- Show what calculations you used.
- Show UTS on a graph
- Show .2% Offset Yield on graph
- Show Modulus of Elasticity on a graph
- “Some speak and write as if they wanted to say something: others as if they had something to say.” — Archbishop Richard Whately

Equipment

- Tinius Olsen universal testing machine

Tinius Olsen Extensometer

Dial Calipers

## DATA

LINK TO Raw Data – (Do not include raw data in report)

Gauge Length is 50.0 mm long Hardness 92 Rb Specimen Diameter is 6.37 mm (Final Diameter: 4.69) Material is AISI 4130 Normalized Steel Crosshead Speed: 2 mm/min Peak Load: 21.3 kN Fracture was cup and cone

See also:

http://www.tiniusolsen.com/pdf/Pamphlet4.pdf

Hint for getting your stress units to MPa:

- First, know that a pascal is one N/m2.
- Remember that to convert Pascals to MPa you divide by 1 million.
- Notice you can do this with the units.
- 1 square meter has 1 million sq mm

- So 1 MPa could be 1 million N/m2
**or****one N/mm2** - Now see that your are given kN/mm2.
- All you need to do is to get to our “new” definition of MPa is multiply by 1000.
- If you do this with the units, you wind up with
**N/mm2**which is the same as MPa.

HINT: to swap columns on scatter diagram:

- Right click on either axis.
- Click “Select Data.”
- Click “edit.”
- Swap column designations.