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Aircraft Stainless Steel BS T66 / 2T66 seamless tube

Technical Data Sheet

BS T66 is the British aerospace standard for seamless tube in stainless steel 347. It is often dual certified to BS T72 and offers good corrosion resistance and good weldability.

Chemical Composition Limits
Weight%	C	Si	Mn	Cr	Ni	Nb	P + S max
2 T66 Tube	0.08 max	0.20-1.0	0.50-2.0	17-19	9-12	10 X C/1.0	P 0.035 S 0.025

Typical Mechanical Properties

Grade	Tensile Strength Rm , N/mm²	Proof Strength Rp 0.2, N/mm²	Hardness HB	Ruling Section
2T66 Tube	550-700	210-340	197 max	1/8" OD to 3 1/2 OD

Availability
Alloy 2T66 Tube. For all stock availability contact Sales.

Specifications
Type 347 Stainless Steel Tube
Z10CNNb 18-11
AMS 5571
AMS 5575
MIL-T-8606
MIL-T-8808
BS T72

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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.