The ultimate tensile strength is the maximum stress that the material can withstand before breaking. The higher the tensile strength, the more resistant the material is to breaking. Results are reported in megapascals (MPa).

The Young's modulus is the slope of the stress-strain curve. The higher the Young's modulus, the more resistant the material is to deformation. Results are reported in megapascals (MPa).

Cost normalized values are reported in units of megapascals (MPa) per dollar ($) per kilogram (kg). A higher cost-normalized value corresponds to a greater material strength per dollar. Costs were calculated using the price of the material at writing.

Materials that are susceptible to water absorption were tested both dry and wet. You can read more about the test method on my blog: https://blog.nathantsoi.com/article/3d-printer-material-tests.

Reported results are the average of 4 tests on each material performed at room temperature on ASTM D638 type V coupons printed for maximum strength with the layer lines parallel to the axis of the test. Materials that are susceptible to water absorption were tested both dry and wet. You can read more about the test method on my blog: https://blog.nathantsoi.com/article/3d-printer-material-tests.

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