FAQs

MY MILD STEEL CARBON TUBE IS STARTING TO SHOW LIGHT SURFACE RUST?

Light surface rust does occur with time, this is perfectly normal but won’t affect the quality of the tube itself. The rust can be easily removed by using a scouring pad and applying a light oil coating afterwards.
WHAT GRADE IS CARBON TUBE?

Standard carbon tube is made from G250 coil material. For automobile roll cages, a specialist grade of steel is used and manufactured to a unique standard. Ask for MSNZ compliance Rollcage Tube if this is what you are sourcing carbon tube for.
WHAT GALVANISED THICKNESS IS ON GALVANISED TUBE?

Standard galvanised tube is manufactured with Z275 coil, which has a minimum of 275gm2 of zinc. Heavier galvanised coated tube can be manufactured ex mill rolling. Please contact our sales team for more information on order quantity and lead time. They’re always happy to help.
MY GALVANISED TUBE HAS WHITE POWDER ON THE SURFACE?

In damp or moist conditions, a white powder can form on a galvanised surface. This must be cleaned down prior to painting or powdercoating. To help prevent the white powder from appearing, galvanised tube should be stored with spacer between steel surfaces.
WHAT IS THE STANDARD LENGTH OF MILD STEEL CARBON AND GALVANISED TUBE?

Industrial Tube's standard tube length is invoiced at 6.1 metre lengths but, each tube is approximately 50mm longer so customers can trim the cropped ends if required. Special lengths are available ex-rolling. Non-standard cut to length tube is also available with our value-added precision cutting service. Our team can provide this service for you should you require.
WHAT IS THE STANDARD LENGTH OF STAINLESS TUBE?

Industrial Tube's stainless tube comes in 6 metre lengths. Special lengths are available ex-rolling or within shorter time frames. Our team can also cut-to-length with our value-added precision cutting service. Just let them know if that is what you need.
WHEN CAN I GET SPECIALIST LENGTHS RUN?

Industrial Tube's standard products are rolled every four to eight weeks. Where possible, we will add specialist lengths to these rolling cycles. If you require a particular length produced, please contact our sales and production team for more information.
WHAT IS THE FINISH OF OUR STAINLESS HYGIENIC TUBE?

The AS 1528.1 standard allows for as-produced or buff polished external finishes as specified by the customer. Our standard external finish is buff polished to a minimum 320G finish. The internal finish of our tube (excluding the weld zone) is typically 0.2-0.6μm Ra. The internal weld zone roughness allows for a maximum Rt value of 14.0µm as per the standard. Our results typically range from 2.0 – 6.5Rt.
WHERE IS YOUR TUBE MANUFACTURED?

All Precision Steel Tube sold by Industrial Tube Australia is manufactured at our New Zealand mill from Australian or New Zealand made steel coil. Our Stainless Steel Tube is also manufactured at our New Zealand mill from imported 2B coil. Additional tube processing is completed in Australia to the requirements of our local customers.
WHAT IS ERW STEEL TUBING?

ERW Tube is a reference to Electric Resistance Welded tube, often called EWS, Precision Tube or furniture tube. Our Precision Steel Tube is longitudinally welded using a High Frequency Induction (HFI) manufacturing process and is available in various profiles, finishes and wall thicknesses. These include Round, Square, Rectangle, Oval and Flat-sided oval.