DIN 1.2714 (NLMK) / DB6

DIN 1.2714 / DB6 (NLMK Verona, Italy) Tool Steel Product Overview

DIN 1.2714, also known as DB6, AISI L6, or 55NiCrMoV7, is a premium hot work tool steel produced by NLMK Verona, Italy, under the DIN EN ISO 4957 standard. This Cr-Ni-Mo-V alloyed steel is engineered for high wear resistance, exceptional toughness, and elevated hardness, making it an enhanced version of DIN 2713. Typically supplied in a pre-hardened condition (360–430 BHN), it excels in demanding applications like close die forgings due to its superior impact resistance, attributed to its nickel content. NLMK Verona’s production process ensures high purity and consistency through advanced steelmaking techniques, including electric arc furnace (EAF), ladle furnace (LF), vacuum degassing (VD), and optional electroslag remelting (ESR).

Applications

DIN 1.2714 / DB6 from NLMK Verona is widely utilised in hot and cold work applications, particularly in automotive, aerospace, metalworking, and tool and die industries:

Hot Work

• Drop forging dies for hammers and mechanical presses.
• Hot forging dies, press dies, and extrusion tooling.
• Hot shear knives, hot gripper dies, and hot embossing tools.

Cold Work

• Bending and forming dies, punches, and cold forging die holders.
• Shearing blades and tool holders for cold work applications.

Other Uses

• Die moulds, shoe blocks, die holders, cassettes, piston rods, cranks, and bolsters.
• Plastic moulds, high-pressure shafts, and piercers.
• Large press dies for aluminium forming and tool cassettes.

Chemical Composition

The chemical composition of DIN 1.2714 / DB6 ensures its toughness, hardness, and wear resistance, with NLMK Verona maintaining tight tolerances for quality:

• Chromium (Cr): Enhances hardenability and wear resistance.
• Nickel (Ni): Improves toughness and impact resistance, critical for heavy-duty dies.
• Molybdenum (Mo): Boosts high-temperature strength and temper resistance.
• Vanadium (V): Refines grain structure, enhancing wear resistance and toughness.

Supply Size

NLMK Verona supplies DIN 1.2714 / DB6 in various forms and sizes to meet industrial demands:

• Round Bars