BD3 cold work alloy tool steel is a steel with excellent mechanical properties and wear resistance, which is widely used in the manufacture of various high-strength and high-hardness tools and mechanical parts.
The chemical composition of BD3 steel is composed of a variety of alloying elements, such as chromium, tungsten, molybdenum, etc., which are mixed and distributed in different proportions and ways in the steel, giving it excellent hardness and wear resistance. The hardness of this steel can easily reach HRC60 or more, making it extremely resistant to wear and fatigue and able to withstand high-intensity impact and friction.
The machinability of BD3 steel is also very good, and it can be processed in a variety of cold and hot works, such as cutting, bending, drilling, turning, etc. Its excellent mechanical properties and processing properties make it an ideal material for manufacturing a variety of high-precision, high-strength mechanical parts and high-quality tools.
In addition, BD3 steel also has good corrosion resistance and can be used in a variety of harsh environments. Its high hardness and high wear resistance make it the material of choice for various wear-resistant tools and parts, such as cutting tools, wear-resistant plates, wear-resistant bars, etc.
In a word, BD3 cold work alloy tool steel is a steel with high performance, high strength, high hardness and high wear resistance, which is widely used in the manufacture of various high-precision and high-strength tools and mechanical parts. Its outstanding properties make it an ideal material for the manufacture of a wide range of high-quality tools and parts, providing strong support for industrial production and manufacturing.
Grade: BD3 steel for cold work molds
Chinese ISC T21200
Other names: T21200
Corresponds to standard tool steel
tool and mould steels
Categorization of tool steels
Tags: Steel for cold work molds, Alloy steel
Description Features and Uses: Equivalent to D3 steel in ASTM A681 with good wear resistance. Widely used cold work die steel, with high strength, hardenability and wear resistance, quenching deformation is small; However, the impact toughness is poor, it is easy to be brittle, it is easy to form uneven eutectic carbides, and the thermal conductivity and high-temperature plasticity are also poor. It is suitable for the production of cold stamping dies and punches, cold shear knives, drill sleeves, wire drawing dies, etc., as well as gauges, templates, cam pins, eccentric wheels, etc., which require less impact load and higher wear-resistance.
This standard is applicable to hot rolled, forged, cold-drawn, silver bright bar steel and machined delivery steel of tool and die steel, and its chemical composition is also applicable to ingots, billets and their products
BD3 chemical element composition content (%)
Composition C Si Mn P s Cr
Minimum values 2 - 115
Maximum value 23 0.4 0.4 0.03 0.02 13
Smelting method: electric arc furnace + vacuum degassing.
BD3 mechanical properties
Condition: Heat treatment or state hardness
HBW Delivery Status: Annealed 217 269
Specimen quenched HRC
Specimen heat treatment system: quenching temperature 950 1000 °C, oil cooling
1 Approximate Comparison Table Alloy cold work tool steel
China, Japan, International Organization for Standardization, Germany, France, European Standard, Russia, United Kingdom
GB JIS ISO din en din nf en nf en numeric grade GOST BS en BS
cr12 skd1 x210cr12 x210cr12 z200c12 x210cr12 1.208 kh12 bd3