Search results
Results from the WOW.Com Content Network
6061 aluminium alloy (Unified Numbering System (UNS) designation A96061) is a precipitation-hardened aluminium alloy, containing magnesium and silicon as its major alloying elements. Originally called "Alloy 61S", it was developed in 1935. [ 2 ]
Mohs hardness [1] Vickers hardness ... aluminium: 2.75: 160–350: 160–550: 184 14: Si: ... Vickers hardness test; Brinell scale This page was last ...
The retrogression and reage (RRA) temper is a multistage heat treatment temper. Starting with a sheet in the T6 temper, it involves overaging past peak hardness (T6 temper) to near the T7 temper. A subsequent reaging at 120 °C for 24 hours returns the hardness and strength to or very nearly to T6 temper levels. [9]
Aluminum 1100–O (annealed) 0.20: 180 2024 aluminum alloy (heat treated—T3) 0.16: 690 5052-O 0.13 210 Aluminum 6061–O (annealed) 0.20: 205 Aluminum 6061–T6: 0.05: 410 Aluminum 7075–O (annealed) 0.17: 400 Brass, Naval (annealed) 0.49: 895 Brass 70–30 (annealed) 0.49: 900 Brass 85–15 (cold-rolled) 0.34: 580 Cobalt-base alloy (heat ...
A variety of hardness-testing methods are available, including the Vickers, Brinell, Rockwell, Meyer and Leeb tests. Although it is impossible in many cases to give an exact conversion, it is possible to give an approximate material-specific comparison table for steels .
AA 6063 is an aluminium alloy, with magnesium and silicon as the alloying elements. The standard controlling its composition is maintained by The Aluminum Association. It has generally good mechanical properties and is heat treatable and weldable. It is similar to the British aluminium alloy HE9. 6063 is the most common alloy used for aluminium ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The superficial Rockwell scales use lower loads and shallower impressions on brittle and very thin materials. The 45N scale employs a 45-kgf load on a diamond cone-shaped Brale indenter, and can be used on dense ceramics. The 15T scale employs a 15-kgf load on a 1 ⁄ 16-inch-diameter (1.588 mm) hardened steel ball, and can be used on sheet metal.