Seamless stainless steel tubes of martensitic steel 1H13 / 1.4006 / AISI410

Seamless stainless steel tubes of martensitic steel 1H13 / 1.4006 / AISI410 are precision-manufactured tubes made from a martensitic stainless steel grade commonly identified as AISI 410 (EN 1.4006, sometimes referenced as 1H13 in older or regional nomenclature). These tubes combine good strength and hardness with moderate corrosion resistance and are supplied as seamless (no longitudinal weld), which gives better mechanical integrity and pressure performance compared with welded tube in many applications.

What is AISI 410 / 1.4006 (martensitic stainless steel)?

AISI 410 (EN 1.4006) is a martensitic stainless steel whose chemistry typically includes around 11.5–13.5% chromium and a low-to-moderate carbon content (commonly around 0.08–0.15%). In plain words: it’s a magnetic, hardenable stainless steel that can be heat treated to increase strength and wear resistance. Because it is martensitic, it differs from austenitic grades (like 304/316) which are more corrosion resistant but not hardenable in the same way.

Key properties

• Hardenable: Can be quenched and tempered to achieve higher hardness and strength.
• Moderate corrosion resistance: Better than carbon steels in many environments but lower than austenitic stainless steels; suitable for atmospheres and processes that are not highly chloride‑rich or highly aggressive.
• Magnetic: Unlike most austenitic grades, martensitic tubes are magnetic.
• Good wear resistance: When heat treated, offers improved wear and abrasion resistance.
• Seamless construction: Provides uniform mechanical properties around the circumference and is preferred for pressure, mechanical or rotating applications.

Typical uses and applications

Seamless AISI 410 (1.4006) tubes are used where a combination of mechanical strength, hardness and some corrosion resistance is required. Common applications include:

• Mechanical components: shafts, piston rods, spindles and sleeves where wear resistance and strength are needed.
• Hydraulic and pneumatic systems: where pressure integrity and strength are important.
• Valves and fittings: parts that require good mechanical properties with moderate corrosion resistance.
• Industrial engineering and machine building: components and assemblies in general engineering workshops and fabrication shops.
• Automotive and transport: structural or wear-critical parts (note: corrosion exposure should be evaluated).
• Power generation and plant equipment: where heat treatment and strength are required but very aggressive corrosive environments are not present.
• Small-scale and garage projects: repairs, custom shafts and prototype work for hobbyists and small engineering shops.

Welding and fabrication (including welding applications)

Weldability of martensitic steels such as AISI 410 is more limited compared with austenitic stainless steels. They can be welded by common processes (TIG, MIG/MAG, MMA) but require care to avoid cracking and loss of mechanical properties. Typical recommendations include:

• Use compatible or matching filler materials and control heat input.
• Preheating may be advisable for thicker sections to reduce the risk of cold cracking.
• Post‑weld heat treatment or tempering can be necessary to restore toughness and relieve stresses.
• Forming should generally be done in the soft or annealed condition; after forming the tubes can be hardened by heat treatment if required.

Who buys these tubes?

Buyers range from industrial purchasers and fabricators to small engineering shops and OEMs. Typical customers include mechanical and plant engineers, maintenance teams, fabricators working on hydraulic or mechanical systems, and hobbyist machinists looking for durable, hardenable stainless tube stock.

Why choose seamless AISI 410 / 1.4006 tubes?

• Mechanical performance: Seamless construction and the martensitic microstructure give good strength and wear resistance.
• Heat-treatable: Ability to tailor hardness and toughness through quenching and tempering.
• Reliable under pressure: Seamless tubes are often preferred for pressure or rotating applications where uniform wall properties matter.

Material synonyms and standards

Common designations you may see for this material: AISI 410 (USA), EN 1.4006 (Europe), 1H13 (regional/older designation). You may also encounter UNS S41000 as an equivalent specification.

Selection tips

• Choose AISI 410 / 1.4006 when you need strength and hardenability with moderate corrosion resistance rather than the highest corrosion performance.
• For environments with chlorides, seawater or aggressive chemicals consider higher-alloy austenitic or duplex stainless grades instead.
• Discuss required heat treatment and welding procedure with your supplier or fabricator to ensure the tubes are supplied and processed to meet your application needs.

If you need help selecting sizes, wall thicknesses or advice on welding and heat treatment for your specific application, contact our sales team — we can recommend the right grade and supply format for your project.