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Hardness Comparisons

Brinell is the scale used to compare the different hardnesses of the metals described here:

Nickel Aluminum Bronze (Alloy #958)-
This alloy is 79% Copper, 10% Aluminum, 4% Iron, 2% Manganese and 5% Nickel. This alloy is more durable than 100% copper, Red and Yellow Brass. Hardness is approximately 150-190.

Yellow Brass (Copper Alloy #865)-
Yellow Brass, also considered a "Bronze", is 60% Copper, 33% Zinc, 2% Iron, 1.5% Aluminum, 1-5% Manganese, 1% Tin, .5% Nickel. Brinell Hardness of 100.

Soft Steel-
Hardness of under 30 on Rockwell C scale, around 279 Brinell.

Malleable Iron-
Brinell hardness of around 134

Aluminum-
Brinell hardness of around 70

Copper-
Brinell hardness of around 40-50

Lead-
 Brinell hardness usually in the 30's

Hardened Tool Steel-
Brinell hardness of around 600 - 700+

Nupla SPS/SPi Tip Hardness Ratings:

Grey Super Soft Tip- Shore A 45-58 (instantaneous) 
Brown Soft Tip- Shore A 45-58
Red Medium Tip- Shore A 59-72
Green Tough Tip- Shore A 73-85
Black Hard Tip- Shore D 49-65
Yellow Extra Hard Tip- Shore D 66-95

Thor DB/NT Tip Hardness Ratings:

Gray Soft Tip- Shore A 63-73 (similar to an eraser)
Red Medium Tip- Shore D 45-55 (similar to solid tires)
Brown Tough Tip- Shore D 58-62 (similar to golf balls)
White Hard Tip- Shore D 61-65 (Similar to a bowling ball)
Yellow Extra Hard- Rockwell R103 (similar to a hard hat)

Garland Synthetic Face Hardness comparisons:

Gar-Dur Plastic - Hard: Harder than Nylon and Urethane
White Nylon - Softer than Plastic, harder than urethane
Urethane - Softer than Plastic or Nylon.
BASA - Softer than Nylon and Plastic, harder than Urethane. A specialty face used mainly for high-temperature applications (Refractory Brick Installations). Hardness: 90 Shore A (50 Shore D).

Halder Synthetic Face Hardness comparisons:

White Nylon - Shore D 73