Safety Cage Tubing

The primary purposes for a safety cage are to protect the vehicle’s occupants in the event of a roll-over and provide structural rigidity in motor sport applications. The high-strength properties of Industrial Tube’s Safety Cage Tube ensures that the safety cage can withstand significant forces during a roll-over or crash, providing crucial protection.

UltraTubeRS™

UltraTubeRS™ is a New Zealand–manufactured dual-phase steel tube, engineered specifically for motorsport safety cages. It delivers over 650 MPa yield strength with excellent ductility, progressive strain hardening, and proven crash energy absorption.

ITM-MSNZ-Q29

Industrial Tube’s Mild Steel Roll Cage Tube is manufactured in New Zealand to MotorSport New Zealand’s ITM-MSNZ-Q29 standard.

Quality Assured

Mechanical Properties

UltraTube and Mild Steel Product Range

Roll Cage Tube Sizing

Quality Assured

With over 170,000 metres of safety cage tubing for Motorsport and Roll-over protection systems (ROPS), produced and supplied across New Zealand and Australia over the past 15 years, Industrial Tube has an unmatched track record in this critical application, backed by stringent testing and quality control.

View our Safety Cage Tubing range

Safety Cage Tubing

UltraTube RS™ Automotive Tube

UltraTube RS™ Automotive Tube

Precision tube manufactured from cold drawing coil.

Mild Steel Roll Cage Tube

Precision tube manufactured from cold drawing coil.

Automotive Exhaust Tubing

Automotive Exhaust Tubing

Products & Base Material

Products	Material Type	Typical Applications
UltraTubeRS™	Dual Phase Steel	Roll Cages, Space-frames, Structural Supports and Bracing, Nerf Bars, ROPS
ITM-MSNZ-Q29 Mild Steel	HRPO Tube 300	Roll Cages, Space-frames, Structural Supports and Bracing, Nerf Bars, ROPS

Typical Mechanical Properties

	Yield Strength	Tensile Strength	E % on Lo = 50mm	HRB (Hardness)
UltraTubeRS™	690 MPa	850 MPa	17	104
ITM-MSNZ-Q29	350 MPa	420 MPa	20	86

Typical Chemical Composition % (Ladle Analysis)

	C	Si	Mn	P	S	Ai	Cr
UltraTubeRS™	0.087	0.247	1.902	0.015	0.001	0.026	0.201
ITM-MSNZ-Q29	0.050	0.007	0.200	0.014	0.014

Roll Cage Tube Sizing

Roll Cage Round Tube (Gauge displayed for Stocked Lines)

Size (mm)	Product Type & Gauge (mm)		Finish	Nom Linear mass (kg/m)			Length per pack
Size (mm)	ITM-MSNZ-Q29	UltraTubeRS™	Finish	1.6	2.0	2.6	Length per pack
22.2mm \| 7/8"		1.6		0.81			5.5m
25.4mm \| 1"		1.6		0.93	1.16	1.41	5.5m
31.8mm \| 1 1/4"	2.6	1.6, 2.0		1.17	1.43	1.80	5.5m
34.9mm \| 1 1/4"		1.6		1.3	1.63	2.0	5.5m
38.1mm 1 1/2"	2.6	1.6, 2.0		1.36	1.78	2.13	5.5m
41.3 \| 1 5/8"		2.0		1.6	1.96	2.39	5.5m
44.5mm \| 1 3/4"	2.6	1.6, 2.0		1.65	2.03	2.52	3.6m
50.8mm \| 1"	2.6	1.6		1.98	2.44	3.02	5.5m

FAQ

What tube is required for automobile roll cage?

For automobile roll cages, a specialist grade of steel is used and manufactured to a unique standard. Industrial Tube’s carbon tube for Roll Cages is manufactured in compliance with the Motorsport MSNZ- Q29. 38.1mm available in 5.5m lengths. 44.5mm available in 4m lengths.

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