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  2. Steel grades - Wikipedia

    en.wikipedia.org/wiki/Steel_grades

    Comparison of steel grades by chemistry [4] [5] [6] EN steel number (Europe) EN steel name (Europe) ASTM grade (USA) AISI/SAE grade (USA) UNS (USA) DIN (Germany) BS (UK) UNI (Italy) JIS (Japan) Carbon steels 1.1141 1.0401 1.0453: C15D C18D: 1010 1018: CK15 C15 C16.8: 040A15 080M15 080A15 EN3B: C15 C16 1C15: S12C S15 S15CK S15C 1.0503 1.1191 1. ...

  3. Keystone effect - Wikipedia

    en.wikipedia.org/wiki/Keystone_effect

    The keystone effect is the apparent distortion of an image caused by projecting it onto an angled surface. It is the distortion of the image dimensions, such as making a square look like a trapezoid, the shape of an architectural keystone, hence the name of the feature. In the typical case of a projector sitting on a table, and looking upwards ...

  4. Eurocode 4: Design of composite steel and concrete structures

    en.wikipedia.org/wiki/Eurocode_4:_Design_of...

    EN 1994-1-2 deals with the design of composite steel and concrete structures for the accidental situation of fire exposure and is intended to be used in conjunction with EN 1994-1-1 and EN 1991-1-2. This part only identifies differences from, or supplements to, normal temperature design and deals only with passive methods of fire protection.

  5. AOL Mail

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    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!

  6. 41xx steel - Wikipedia

    en.wikipedia.org/wiki/41xx_steel

    41xx steel is a family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Alloying elements include chromium and molybdenum , and as a result these materials are often informally referred to as chromoly steel (common variant stylings include chrome-moly , cro-moly , CrMo , CRMO , CR-MOLY , and similar).

  7. Low-background steel - Wikipedia

    en.wikipedia.org/wiki/Low-background_steel

    A body counting room at the Rocky Flats Plant in Denver, Colorado, made entirely from pre-World War II steel. Low-background steel, also known as pre-war steel[1] and pre-atomic steel, [2] is any steel produced prior to the detonation of the first nuclear bombs in the 1940s and 1950s. Typically sourced from ships (either as part of regular ...

  8. Download, install, or uninstall AOL Desktop Gold

    help.aol.com/articles/aol-desktop-downloading...

    1. Search your inbox for the subject line 'Get Started with AOL Desktop Gold'. 2. Open the email. 3. Click Download AOL Desktop Gold or Update Now. 4. Navigate to your Downloads folder and click Save. 5. Follow the installation steps listed below.

  9. 4DX - Wikipedia

    en.wikipedia.org/wiki/4DX

    4DX. 4DX seats at the Cinema Sunshine Heiwajima in Tokyo, Japan. 4DX is a 4D film presentation system developed by CJ 4DPlex, a subsidiary of South Korean cinema chain CJ CGV. It allows films to be augmented with various practical effects, including motion-seats, wind, strobelights, simulated snow, and scents. First debuted in 2009, it presents ...