ASTM A105 TECHNICAL DATA

Order A105 Pipe Fittings Order A105 Pipe Flanges

This specification covers forged carbon steel piping components for ambient - and higher-temperature service in pressure systems. Included are flanges, fittings, valves, and similar parts.

Technical Data: ASTM A105 Chemical Requirements ASTM A105 Mechanical Requirements

Element	Carbon	Manganese	Phosphorus	Sulfur	Silicon	Copper	Nickel	Chromium	Molybdenum	Vanadium
Composition, %	0.35 max	0.60-1.05	0.035 max	0.040 max	0.14-0.35	0.40 max^A	0.40 max^A	0.30 max^A,B	0.12 rnax^A,B	0.08 max^A

^A The sum of copper, nickel, chromium, molybdenum and vanadium shall not exceed 1.00%

^BThe sum of chromium and molybdenum shall not exceed 0.32%.

Tensile strength, min, ksi [MPa]			70 [485]
Yield strength, min, ksi [MPa]^B			36 [250]
Elongation in 2 in. or 50 mm, min, %: When standard round 2-in. or 50-33 gauge length or smaller proportionally sized specimen with the gauge length equal to 4D is used			22




Strip specimens for wall thickness 5/16 in. [7.94 mm] and over and for small sizes tested in full section.			30


Formula for calculating min elongation for strip specimens thinner than 5/16 in. [7.94 mm]; min % in 2 in. [50 mm]: t = actual thickness




Inch-pound units (in.)			48t + 15
SI units (mm)			1.9t + 15
Reduction of area, min, %^C			30
Hardness, HBW, max			197

^B Determined by either the 0.2% offset method or the 0.5% extension-under-load method.

^CFor round specimens only.