3D Printing Filament Properties - superjamie/lazyweb GitHub Wiki

Property	PLA	PETG	ABS	PC	Nylon 6,6	AM1800	PETT
Glass Transition (degrees C)	60	80	100	150	70	70	68.2
Melt Temperature (degrees C)	160	140	230	230	255	?	212
Density (g per cm cubed)	1.30	1.29	1.10	1.20	1.07	1.27	1.13
Elastic Modulus (GPa)	3.5	2.2	2.0	2.3	3.3	1.9	?
Tensile Strength (MPa)	50	53	41	62	86	50	71
Tensile/Density Ratio (kn-m/kg)	40	42	38	55	75	?	?
Elongation at Yield (percent)	6%	140%	20%	110%	46%	5%	300%
Flexural Modulus (GPa)	4.0	2.1	2.1	2.3	2.8	2.1	0.97
Flexural Strength (MPa)	80	77	97	92	110	?	48
Compressive Strength (MPa)	18	55	7.5	86	73	?	?

AM1800 is Taulman n-vent PETT is Taulman t-glase

Dummies Guide

I am by no means a mechanical engineer and have only an armchair understanding of these properties.

Temperature

Glass Transition: starts to deform
Melt Temperature: becomes liquid
PC best, ABS good, PETG not too bad, PLA and Nylon bad

Stretch

Elastic Modulus (Young's Modulus or Tensile Modulus): higher = less stretchy
Tensile Strength: higher = resists stretch more
Nylon best, PC second best, PETG good and will deform at limit, PLA close and will crack quickly at limit

Bending

Flexural Modulus: higher = less bendy
Flexural Strength: higher = resists bending more
Nylon best, ABS and PC good and will deform at limit, PLA alright and will crack quickly at limit, PETG a tad weaker and will deform at limit

Squish

Compressive Strength: resists compression more
PC, Nylon, PETG best, PLA and ABS not so good

Breaking

Elongation: how much a stress curve rises, less means crack, more means deform out of shape

Coefficient of Friction

I don't really understand this well, and there are a lot of different results from different source, but anyway, I hope this is a good table of Dynamic Coefficient of Friction vs steel:

Material	Value
PTFE (Teflon)	0.04 to 0.05
Sintered Bronze	0.12
Bronze	0.16
Brass	0.19
POM	0.2
PET-P	0.2
PET-G	0.22
PET	0.25
Nylon 6,6	0.26
ABS	0.35
PLA	0.38 to 0.45
PC	0.38 to 0.5