Hot Rolled Electric Welded Tubing

Hot rolled electric welded (HREW) tube is produced per ASTM A513 Type 1A. HREW mechanical tubing is produced from hot rolled strip steel while A513 Type 1B tubing is produced from hot rolled strip steel that has been pickled to remove scale then oiled to provide a cleaner surface than hot rolled.  A513 Type 1 tubing provides more specific tolerances for OD, wall thickness, length and straightness tolerances than pipe and structural tubing specifications.  ASTM A513 covers carbon steel grades starting at 1008 and higher.  Physical testing (yield, tensile and elongation) is not required under A513.

Made from 1008 to 1026 steel
Meets ASTM A513 Type 1
A513 T2 HREW Tubing Tolerances

Cold Rolled Electric Welded Tubing

Cold rolled electric welded (CREW) tube is produced per ASTM A513 Type 2.  CREW is produced from hot rolled strip steel that has been cold reduced.  Due to the extra cold working at the steel mills, A513 Type 2 tubing will have tighter wall thickness tolerances, improved surface condition and a narrower range of mechanical properties than A513 Type 1.  A513 Type 2 tubing is used in a variety of applications where surface condition is critical and where further polishing or plating of the tubing is required.  The maximum wall thickness for cold rolled tubing is 0.120" nominal.

Made from 1008 to 1026 steel
Meets ASTM A513 Type 2
A513 T2 CREW Tubing Tolerances

Stocked Size Range:

  • 0.375” to 12.750” O.D. with 0.028” to 0.625” Wall Thickness
  • Typically Stocked in 20’, 20’2”, 24’ lengths (cut to length available)

Manufacturing Process:

ASTM A513 Type 1A mechanical tubing is produced from hot rolled strip steel while A513 Type 1B tubing is produced from hot rolled strip steel that has been pickled to remove scale then oiled to provide a cleaner surface than hot rolled.  Electrical resistance welded tubes are produced from a hot rolled scale-free strip which is formed by rolls at room temperature into a tubular shape. Welding takes place as an electric current heats the two edges of the strip as they are pressed together. Only a narrow band of metal is heated while the rest of the tube remains at room temperature.

Stocked Size Range:

  • 0.375” to 10.750” O.D. with 0.028” to 0.120” Wall Thickness
  • Typically Stocked in 20’, 20’2”, 24’ lengths (cut to length available)

Manufacturing Process:

ASTM A513 Type 2 mechanical tubing is produced from hot rolled strip steel that has been cold reduced.  Electrical resistance welded tubes are produced from a hot rolled scale-free strip which is formed by rolls at room temperature into a tubular shape. Welding takes place when an electric current heats the two edges of the strip as they are pressed together. Only a narrow band of metal is heated while the rest of the tube remains at room temperature.  The tube is then cold reduced to produce a cleaner surface and tighter dimensional properties. 

Benefits of HREW Tubing:

Formability

  • HREW tubing is great for applications where bending, flanging, flaring or flattening is required.

Cost-Effectiveness

  • HREW tubing is a low-cost alternative where close tolerances and concentricity are not critical.

Surface Quality

  • HREW tubing can be available in many surface treatments. You can get it in galvanized, hot rolled black, or pickled & oiled.

Wide Range of Sizes

  • HREW can be manufactured to a large range of OD and wall thickness dimensions based on available coil and roller capacity.

Ductility

  • Tubing produced to the A513 specification also provides improved ductility with its closely controlled carbon steel grades.

Benefits of CREW Tubing:

Cost-Effectiveness

  • CREW tubing is a low-cost alternative where close tolerances and concentricity are not critical.

Surface Quality

  • CREW is ideal for applications where surface condition is critical and where further polishing or plating of the tubing is required.

Wide Range of Sizes

  • CREW can be manufactured to a large range of OD and wall thickness dimensions based on available coil and roller capacity.

Ductility

  • Tubing produced to the A513 specification also provides improved ductility with its closely controlled carbon steel grades.

Applications By Industry:

Construction & Heavy Equipment

  • Sleeves, Spacers, Frames, Chassis, Safety Cages, Cranes, Handrails, Struts, Transmission Shafts

Agriculture

  • Machinery Frames, Augers, Booms, Chassis, Steering Components, Hand Rails, Spacers, Cabins, Cages, Plowing Apparatus Components, Watering Apparatus

Infrastructure

  • Columns, Pipe Bollards, Railings, Lift Components, Mezzanines, Signs, Canopies, Recreational Equipment, Conveyors, Material Handling Equipment

Fluid Handling 

  • Not recommended for Fluid Handling applications

Machinery

  • Numerous Internal Machine Component, Frames, Industrial Lift Components, Tool Extensions, Bases, Spacers

Oil & Gas

  • Cages, Racks, Not recommended for fluid transfer, Augers, Drilling Components

Energy

  • Solar Brackets, Waste Treatment, Wind Turbine Components, Nuclear, Wind, Solar, Gas and Coal Plant Applications

General Fabrication and Machining

  • Exercise Equipment, Medical Equipment, Supports, Stands, Racks, Brackets, Spacers, Display Cases

Automotive & Transportation

  • Auto & Truck Axles, Roll Cages, Chassis, Head Rests, Pillars, Seat Frames, Shock Absorbers, Steering, Struts, Frames

Applications By Industry:

Construction & Heavy Equipment

  • Sleeves, Spacers, Handrails, Struts, Shafts

Agriculture

  • Greenhouses, Steering Components, Hand Rails, Spacers, Cabin Components, Plowing Apparatus Components, Watering Apparatus

Infrastructure

  • Railings, Racking, Greenhouses, Awnings, Mezzanines, Signs

Fluid Handling

  • Not recommended for Fluid Handling applications

Machinery

  • Numerous Internal Machine Components, Frames, Tool Extensions, Shafts, Bases, Spacers

Oil & Gas

  • Cages, Racks, Not recommended for fluid transfer, Protective Barriers, Railings

Energy

  • Solar Brackets, Solar Bases, Waste Treatment, Wind Turbine Components, Nuclear, Wind, Solar, Gas and Coal Plant Applications

General Fabrication and Machining

  • Size Specific Needs, Supports, Stands, Racks, Brackets, Spacers, Display Cases, Furniture, Exercise Equipment

Automotive & Transportation

  • Auto & Truck Axles, Roll Cages, Chassis, Head Rests, Pillars, Seat Frames, Shock Absorbers, Steering, Struts, Frames
Customized Cut Lengths Available. Specialize Cut Length During Quote Process.