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What is t45?

T45 is a very unique seamless carbon based steel tube that has been used in many applications in different industries.

T45 or, more correctly, BS4 (British Standard) T45 is a high strength, carbon-manganese steel alloy, easily formed and easily welded. Offered in a form of CDS (Cold Drawn Seamless) tubing, the material significantly improves structural strength in applications without noticeable weight increase.


Unlike other materials (such as mechanically comparable 4130 / 25CRMO4 Chromoly), T45 does not require any pre- or post-heat treatments.

Applications

T45’s excellent strength to weight ratio, high tensile and yield properties make it an extremely versatile material suitable for many industrial uses and applications.

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Aerospace

T45 material was originally designed for aerospace industry, used for airframe structures due to its excellent properties. It has been around for over 60 years and can be found in structures of many aeroplanes incl. famous WWII birds such as Supermarine Spitfire and Hawker Hurricane.

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Defense

The defense industry quickly and eagerly adopted T45.

The material has been used for many purposes – Its introduction allowed development of military vehicles able to carry higher payloads with improved vehicle structure strength –  without significant increase in weight.

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Motorsports

Widely used in early Formula 1 cars, T45 is still in the high demand in today’s motorsport industry. Used in many WTCC, WRC and BTCC cars structures, it provides excellent weight-to-strength ratio, mechanical properties, ease of fabrication and welding. It is being used with excellent results for manufacturing such products as Roll Cages, Anti Roll Bars, Space Frames and Impact Protection Elements.

Technical Data Sheet

Specifications: BS 4 T45 Tube 1972

Chemical Composition Limits

C (% weight)Si (% weight)Mn (% weight)Cr (% weight)Ni (% weight)Mo (% weight)P+S Max
0.17 - 0.250.10 - 0.351.30 - 1.700.25 max0.40 max0.100.040 max

Typical Mechanical Properties

TreatmentTensile Strength
Rm, N/mm2
Proof Strength
Rp 0.2, N/mm2
Hardness
HB
Ruling Section
Hardened and tempered700-900620201-262 max12.5mm min OD

Where to buy?

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Bilt Racing Service  located in Momence, IL is the exclusive US distributor of Aerocom Metals’ T45 tubing.

Most Popular MOtorsport sizes available for immediate delivery in the US

100x083

$5.33 /ft*

100x095

$5.78 /ft*

150x095

$7.95 /ft*

175x095

$9.90 /ft*

* Prices based on 1.00 GBP = 1.22 USD exchange rate. Subject to change without notice. 10ft minimum order qty.

Other available T45 Tubes (special order)

▼ OD | W/T►0.1280.1440.1160.1040.0800.0720.0650.0590.0580.0490.0400.0360.028
0.500

0.625

0.669

0.750

0.787

0.875

0.875x0.875

1.000

1.000x1.000

1.000x1.250

1.125

1.181

1.250

1.375

1.500

1.574

1.625

1.750

2.000

Contact us



EXCLUSIVE US DISTRIBUTOR

Bilt Racing Service

125 Gladiolus St. Momence, IL 60954

support@t45tubing.com | 815-582-7268

UNITED KINGDOM

Aerocom Metals

+44 (0)2476 645 551

aerocommetals.co.uk