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Date : 26-10-21 17:27

Dimensional Tolerances (by Material Standard)

Author : ひまり

Count : 55

Material Group	Applied Code	Outside Diameter (OD)	Wall Thickness (WT)	Length Tolerance
Steel Tubes (Carbon/Stainless)	ASTM A450 / A1016	• ≤ 25.4mm : ± 0.10mm • 25.4~38.1 : ± 0.15mm • 38.1~50.8 : ± 0.20mm	Seamless: +20% / -0% Welded: ± 10%	≤ 5.8M: +3.2 / -0mm > 5.8M: +4.8 / -0mm
Nickel (Hastelloy) & Titanium	ASTM B163 / B338	• OD ≤ 38.1 : ± 0.10mm • OD > 38.1 : ± 0.13mm	± 10% of Average WT (or Min. WT basis)
Copper Alloy (Cu-Ni, Brass)	ASTM B111 / B251	• ≤ 15.9mm : ± 0.05mm • 15.9~25.4 : ± 0.08mm • 25.4~50.8 : ± 0.13mm	± 10% of Specified WT