e470 Steel Tube and Hollow Bar
e470 steel tube known in its various forms as 19MnVS6, 280T, or X (to EN 10267), is a versatile and high-performing microalloyed steel that combines excellent tensile strength with good machinability and weldability. Engineered for cost efficiency and mechanical performance, this steel grade is well-suited to a wide range of applications across automotive, construction, and general engineering sectors.
The unique appeal of e470 lies in its adaptability. It features a generous chemical analysis that supports multiple grade variants, each offering a different balance of strength and toughness. All grades in the e470 family are microalloyed with vanadium, a key element that refines the grain structure of the steel. This results in a fine grain size and significantly enhanced impact resistance, providing an ideal foundation for structural integrity and durability.
Most commonly, e470 steel tube is supplied in the as-rolled condition, which offers excellent mechanical properties straight from the mill. However, the steel can also be heat treated to further enhance specific characteristics such as strength or hardness. These heat treatments naturally affect the steel’s mechanical performance, allowing users to tailor the material for their precise requirements. This flexibility makes e470 an ideal choice for manufacturers who need reliable material performance without excessive alloying or unnecessary cost.
DIRECT COST EFFICIENCY
In terms of strength, the steel offers outstanding yield performance. The range starts with a minimum yield strength of 400 MPa, increasing up to 520 MPa depending on the variant selected. Each grade is carefully balanced to meet these requirements without the excessive use of alloying elements, supporting more efficient production and reducing overall material cost. This makes e470 a smart choice for both high-volume production and performance-focused design.
e470 hollow bar further expands the value of this material. It provides the same excellent mechanical and metallurgical qualities as solid bar, while offering reduced weight and machining time for hollow components. For applications such as cylinders, bushings, pivot pins, and hydraulic systems, hollow bar can reduce costs and material waste significantly without compromising strength or reliability.
Machinability is another standout feature of e470. Thanks to its controlled composition and grain structure, it offers clean, predictable machining behaviour, making it well-suited to CNC operations, turning, drilling, and milling. Weldability also remains strong, with excellent results achievable across all variants. As the alloy content increases, weldability moves from excellent to good — a trade-off matched by gains in yield strength and mechanical robustness.
Advantages of e470 steel tube and hollow bar
• Suitable for case carburizing or nitriding
• Good dimensional stability
• Fine-grain treated
• Delivered in as-rolled, normalized or quenched and tempered condition
• Weldable if preheated
280T is our premium variant.
280X is used in the Ovako hollow bar program according to EN10294-1.
At Midland Special Steels, we supply both e470 solid bar and e470 hollow bar in a variety of sizes and lengths, with full certification and traceability. Whether you’re manufacturing structural components, fluid power systems, or high-load mechanical parts, we can supply the right grade, finish, and form to suit your production requirements. Our additional services include cutting to size, ultrasonic testing, and optional heat treatment, ensuring your material is ready for immediate use or further processing.
With its excellent strength-to-cost ratio, broad processing options, and proven reliability, e470 is a go-to material for forward-thinking engineers and manufacturers. If you’re looking for a high-performance steel that delivers on both performance and economy, e470 from Midland Special Steels offers the perfect balance.
Contact our team today to discuss availability, specifications, and how this adaptable steel can support your next project.
280T & 280X
| Variant | Cast | C% | Si% | Mn% | P% | S% | Cr% | Ni% | Mo% | V% | N% | Dl% | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 280T | IC | CEV 0.6max | Min | 0.17 | 0.30 | 1.45 | - | 0.020 | 0.20 | - | - | 0.080 | - | 1.60 |
| Pcm 0.35max | Max | 0.20 | 0.45 | 1.60 | 0.025 | 0.035 | 0.28 | 0.20 | 0.10 | 0.120 | - | 1.90 | ||
| 280X | CC | CEV 0.58max | Min | 0.16 | 0.20 | 1.40 | - | 0.020 | - | - | - | 0.080 | - | - |
| Pcm 0.32max | Max | 0.20 | 0.50 | 1.70 | 0.020 | 0.040 | 0.30 | 0.30 | 0.08 | 0.130 | - | - |
Heat treatment recommendations
| Treatment | Condition | Temerature Cycle | Cooling/Quenching |
|---|---|---|---|
| Normalizing | +N | 900-920°C | In still air |
| Stress relieve annealing | +SRA | 550-600°C | In furnace or in still air. |
| Carburizing | +C | 850-950°C Carbon potential see diagram | In still air or direct quench |
| Hardening | +QT | 900-950°C | In water |
| Hardening | +QT | 850-910°C As-carburized | In oil |
| Tempering | +QT | 500-650°C | |
| Tempering | +QT | 150-200°C As-carburized |
Similar designations
SB280 – 18Mn6, E470, SS2134, 1.5217, 19MnV6
