ASTM A105/A105M

is the standard specification for forgings for piping applications including flanges, fittings and valve parts, etc. According to B16.5(Pipe Flange), this material is categorized into Group 1.1 which has the same pressure-temperature ratings as ASTM A216 Grade WCB, A515 Grade 70, A350 Grade LF2, A516 Grade 70, A350 Grade LF6 Class 1, A537 Class 1 and A350 Grade LF3. ASTM A105 flanges refer to forged flanges for ambient and high temperature service in pressure systems.They can be manufactured to dimensional standards of n7, MSS SP 44, API 605, BS 4504, EN1092-1 and L-005, etc. HBMetals keeps a large amount of flanges available in stock covering flange types of welding neck, slip on, socket welding, threaded, blind, slip on plate, long weld neck, orifice and lap joint, etc.

ASTM A105 flanges
Chemical composition, mechanical properties and pressure-temperature ratings for ASTM A105 flanges.
Chemical Composition Requirements of ASTM A105

*The sum of copper, nickel, chromium, molybdenum and vanadium shall not exceed 1.00% while the sum of chromium and molybdenum shall not exceed 0.32%. The carbon equivalent CE = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15 shall be no larger than 0.47 based on heat analysis.

Mechanical Properties of ASTM A105
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