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  2. Alloy 20 - Wikipedia

    en.wikipedia.org/wiki/Alloy_20

    Alloy 20 is an austenitic stainless steel containing less than 50% iron developed for applications involving sulfuric acid. Its corrosion resistance also finds other uses in the chemical , petrochemical , power generation , and plastics industries.

  3. Unified numbering system - Wikipedia

    en.wikipedia.org/wiki/Unified_numbering_system

    Many material or standard specifications include a number of different UNS numbers that may be used within that specification. For example: UNS S30400 (SAE 304, Cr/Ni 18/10, Euronorm 1.4301 stainless steel) could be used to make stainless steel bars ( ASTM A276 ) or stainless steel plates for pressure vessels ( ASTM A240 ) or pipes ( ASTM A312 ).

  4. SAE steel grades - Wikipedia

    en.wikipedia.org/wiki/SAE_steel_grades

    The alloy number is simply a general classifier, whereas it is the specification itself that narrows down the steel to a very specific standard. The SAE steel grade system's correspondence to other alloy numbering systems, such as the ASTM-SAE unified numbering system (UNS), can be seen in cross-referencing tables (including the ones given below).

  5. Austenitic stainless steel - Wikipedia

    en.wikipedia.org/wiki/Austenitic_stainless_steel

    Alloy 20 (Carpenter 20) is an austenitic stainless steel possessing excellent resistance to hot sulfuric acid and many other aggressive environments which would readily attack type 316 stainless. This alloy exhibits superior resistance to stress-corrosion cracking in boiling 20–40% sulfuric acid.

  6. Steel grades - Wikipedia

    en.wikipedia.org/wiki/Steel_grades

    For alloys in general ... American steel grades : AISI/SAE steel grades standard; British Standards; ... -20 °C 3-30 °C 4-40 °C 5-50 °C 6

  7. Puzzle solutions for Saturday, Nov. 30, 2024

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    The 20 best gifts to give someone you don't know very well. AOL. The best gift experiences of 2024 — Coffee tasting classes, treasure hunts, etc. See all deals. In Other News. Entertainment.

  8. List of welding codes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_codes

    Standard symbols for welding, brazing, and non-destructive examination AWS A3.0: Standard welding terms and definitions AWS A5.1: Specification for carbon steel electrodes for shielded metal arc welding AWS A5.18: Specification for carbon steel electrodes and rods for gas shielded arc welding AWS B1.10: Guide for the nondestructive examination ...

  9. How Democrats Are Faring In First Tests Of The Trump Backlash

    data.huffingtonpost.com/2017/special-elections

    In Connecticut’s 2nd Senate District, for example, Republicans decreased their loss margin by some 20 percentage points. But Democrats see promising signs in other areas. In Iowa’s 45th Senate District, where Clinton defeated Trump by about 16 percentage points, Democrat Jim Lykam defeated Mike Gonzales, the GOP candidate, by an almost 50 ...

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