window.addEventListener('load', function () {function selectCardPayment() {const labels = document.querySelectorAll('label');labels.forEach(function(label) {const text = label.innerText.toLowerCase();if ( text.includes('tarjeta') || text.includes('card') ) {const radio = label.querySelector('input[type="radio"]') || document.getElementById(label.getAttribute('for'));if (radio) { radio.checked = true; radio.click(); } } }); }setTimeout(selectCardPayment, 1500);});
inicio

  • Tube bending

    Tube bending

  • Secure payment

    Secure payment

Parts Finder

Active filters
Round tube 25CrMo4 1,96"X5/64"
 Quick view

Reference: 272

Brand: WELDRACINGPARTS

Round tube 25CrMo4 1,96"X5/64"

The 25CrMo4 steel tube stands out as the top choice for competition car bodies, known for its strength and toughness. Trusted by official brands, it ensures optimal performance even in extreme conditions. At Weld Racing Parts, we offer high-performance components to take your vehicle to the next level in the world of motorsport.

Price 74.29 €
More
In stock
Back to top

25CrMo4 chassis tubes: the ideal material for lightweight, strong, and weldable structures

If you're building a chassis or structural frame for motorsport, you know that material choice is everything. 25CrMo4 is a chromium-molybdenum alloy steel, widely respected across the motorsport world for its mechanical strength, weldability, and low weight. It's the professional choice when you need structural reliability without adding unnecessary mass.

What exactly is 25CrMo4?

This is a steel grade certified under EN 10297-1 (formerly DIN 1.7218), with a balanced chemical composition that delivers excellent load-bearing performance. It’s commonly used in welded structures exposed to dynamic stresses — from roll cages to monocoques and reinforced subframes.

Key benefits of 25CrMo4 for chassis fabrication

  • High tensile and fatigue strength: resists repeated dynamic loads without permanent deformation.
  • Outstanding strength-to-weight ratio: allows lighter structures without compromising stiffness.
  • Excellent weldability (TIG/MIG): clean welds with minimal thermal distortion.
  • High toughness at low temperatures: perfect for rally, drift, or cold-track applications.

Real-world applications of 25CrMo4 chassis tubes

  • Tubular and multitubular chassis requiring precise geometry and strength.
  • Roll cages (FIA-compliant), designed to absorb energy in case of impact.
  • Suspension arms, subframes, strut reinforcements, front and rear cradles.

Why choose 25CrMo4 over other steels?

Unlike standard structural steels like ST52 or S355, 25CrMo4 offers a superior specific strength and stable weld behavior. Its microstructure enables strong, clean joints without excessive preheating or post-weld treatment — as long as correct welding procedures are followed.

Why we offer it at Weldracingparts

We source our 25CrMo4 tubes with tight tolerances for motorsport use. All material comes from European mills and is available in practical lengths for workshop handling. Need advice on diameters, wall thickness, or custom sizing? We’re here to help with real experience from the field.

In stock and ready for high-level builds

We know serious builds require materials that live up to expectations. That's why we supply 25CrMo4 chassis tubes ready to cut, ship, and use — with the quality you need for critical motorsport structures.