Best 2-Inch DOM Tubing With .120-Inch Wall for Durable Builds
DOM (drawn over mandrel) tubing combines strength, rigidity, and consistent wall thickness, making it a top choice for roll cages, chassis, and custom frames. This guide highlights select 2-inch DOM tubes with a .120-inch wall, along with related options that meet common fabrication needs. Each listing includes key dimensions, material notes, and practical considerations to help you choose the right tubing for structural robustness and predictable performance in American projects.
| Product | Brand | Diameter | Wall | Length | Notes |
|---|---|---|---|---|---|
| A513 Cold Roll Carbon Steel Round Tubing | Online Metals | 2″ | 0.12″ | 12″ | Drawn Over Mandrel; high carbon steel with good rigidity |
| 2″ OD x 1/4″ Wall DOM Seamless Round Tube | Generic | 2″ | 0.25″ | Variable | DOM steel tube; 1.50″ ID; versatile for various lengths |
| 2″ OD x 1/4″ Wall DOM Seamless Round Tube | Generic | 2″ | 0.25″ | Variable | Same spec as above; multiple length options |
| 2″ OD x 1/8″ Wall DOM Steel Tube | Generic | 2″ | 0.125″ | Variable | Lighter-wall DOM option for weight-sensitive builds |
| Rhodes Race Cars RRC Elite Series Swing Out Door Bar Kits | Rhodes Race Cars | 1 5/8″ | 0.120″ | — | DOM tubing used in elite door bar assemblies |
Note: DOM tubes listed vary in diameter and wall thickness, with several 2″ options and alternatives. When selecting tubing for high-stress applications, consider yield strength, weldability, and compatibility with your fabrication method. The following sections provide detailed product insights and practical considerations for each option.
A513 Cold Roll Carbon Steel Round Tubing
A513 steel is a high-carbon alloy offering strong rigidity with slightly lower machinability and weldability. The product features a 2″ outside diameter, 1.76″ inside diameter, and a 0.12″ wall, with a 12″ length. This tube is suitable for applications requiring robust structural members, pins, and spindles where precision and stiffness are prioritized. Consider post-weld heat treatment and compatibility with attachment methods when integrating into assemblies.
2″ OD x 1/4″ Wall DOM Seamless Round Tube
Dom steel tubing with a 2″ outside diameter and a 1/4″ wall offers increased rigidity for medium-to-heavy structural members. The tube is seamless, which helps reduce potential stress risers at joints. The internal diameter is approximately 1.50″, enabling ample wall-to-wall clearance for fasteners and inserts. This option is popular for frames and supports where higher stiffness is required without substantial weight penalties. Ensure proper welding technique and joint design for long-term reliability.
2″ OD x 1/4″ Wall DOM Seamless Round Tube
Another listing for a 2″ OD DOM seamless round tube with a 1/4″ wall. This option matches the prior DOM characteristics and suits builds requiring significant torsional stiffness. Being seamless, it typically features uniform wall thickness along the length, aiding predictable bending behavior. Validate the exact length needed and plan for cutting and deburring to maintain edge quality for welds and joints.
2″ OD x 1/8″ Wall DOM Steel Tube
This option provides a lighter DOM steel tube with a 2″ outside diameter and 0.125″ wall thickness. While lighter, it still offers good torsional stiffness for less demanding frames or non-load-bearing components. Consider the impact on strength-to-weight ratio when designing critical connections, and plan for adequate reinforcement where necessary.
Rhodes Race Cars Elite Series Swing Out Door Bar Kits
Elite door bar kits use DOM tubing with a 1 5/8″ diameter and a 0.120″ wall. While not a 2″ tube, this option demonstrates the versatility of DOM tubing in safety-related applications, providing high rigidity and predictable deformation characteristics for rollover protection and structural bars in performance builds. When integrating such components, ensure precise alignment and secure anchor points to maintain safety standards.
Allstar Round DOM Steel Tubing
Allstar’s round DOM steel tubing measures 1-3/4″ in diameter with a .120″ wall and a 4 ft length, suitable for lighter structural members and accessory mounting. It demonstrates the common use-case for many racing and hot-rodding projects where DOM is preferred for its consistent wall thickness and straightness. Ensure joint design accommodates fatigue and vibrational loads typical in high-performance builds.
2.00″ OD x 3/16″ Wall DOM Steel Tube
With a 0.188″ wall, this DOM steel tube offers a robust option for frames requiring higher rigidity without excessive weight. The 2.00″ outer diameter and robust wall translate to strong bending resistance and favorable torsional stiffness. As with heavier DOM, prioritize proper welding procedures, joint design, and potential surface treatments for longevity.
2″ OD x 1/8″ Wall DOM Steel Tube
This listing reiterates a 2″ OD with a 0.125″ wall for a balance of strength and weight. It is suitable for automotive frames, supports, or cabinetry where moderate rigidity is sufficient. Consider environmental exposure and coating options, as steel surfaces may require protection against corrosion to maintain structural integrity over time.
Buying Guide: Key Purchase Considerations
- Wall thickness vs. load requirements: Thicker walls (e.g., 1/4″) yield higher rigidity and load tolerance but add weight. Choose based on the expected stress and regulatory safety margins.
- Diameter and fit: 2″ DOM tubes suit many automotive and structural frames, but some kits use smaller diameters (1 5/8″ to 1-3/4″) with similar wall thickness. Ensure compatibility with end fittings, bolts, and joints.
- Material behavior: DOM tubes are typically steel (mild or high-carbon) with predictable bending and torsional properties. Consider heat treatment, weldability, and corrosion resistance in your selection.
- Seam vs. seamless: Seamless DOM tends to have uniform wall thickness and fewer imperfections, which benefits strength and weld quality. Assess your fabrication workflow to decide which is best.
- Length planning: Many listings are sold in fixed lengths. Plan cuts and consider the need for waste reduction, alignment fixtures, and post-cut deburring.
- Finish and coatings: For outdoor or vehicle-exposed applications, consider galvanizing, painting, or powder coating to reduce corrosion and extend service life.
- Availability and sourcing: While 2″ DOM options are common, some lists emphasize specific lengths, diameters, or wall thicknesses. Verify stock levels and lead times before committing to a project schedule.