What is the domestic material corresponding to DIN 1 2714?

The die steel is improved on the basis. Reserved.

and got better resistance to heat cracks.

Steel has good toughness, ductility and crack resistance. Chromium is added to improve the fatigue resistance and toughness of the mold.

It is the steel that contains CR

The amount is high, with high hardenability, and the martensitic structure can be obtained by cooling during quenching, which is suitable for large-scale, complex structure, precision, and long-life die-casting molds, high-performance die-casting molds, extrusion molds, etc. Features: very good sharpening, easy processing, shortening of mold time, no need for hardening after processing, especially quenching deformation cracking, expansion and contraction, etc.

At present, there is no correspondence with Chinese materials.

Standard: din

Grade: 56nicrmov7

Numerical Code: Chemical Composition: C:, Si:, Mn:, P: ,S: ,Cr:, Mo:, Ni:, V:

German DIN standard die steel is a kind of steel used in mold manufacturing.

Chemical composition. Carbon C:

Silicon si:manganese mn:

Phosphorus p: sulfur s:

Chromium Cr:Molybdenum Mo:

Nickel Ni:Vanadium V:

Factory condition: soft annealed, hardness up to 248HB

Features:1Oil-quenched and gas-quenched plastic mold steel has good hardening properties.

2.Good toughness.

3.It has good heat resistance and is also suitable for cold work tool steels.

4.Suitable for surface treatment.

5.Good polishing properties.

The domestic material corresponding to DIN is 56CrNi2MOV<>

Tool steel. Grade: 56nicrmov7

Numeric number: Executive standard: DIN 17350

Chemical Composition: Carbon C:

Silicon si:manganese mn:

Chromium Cr: Nickel molybdenum.

Vanadium phos p :

Sulfur s:

Grade 55NICROV 7

German w-nr

Corresponding to DIN EN ISO 4957-2018 Tool Steels

Classified as alloy steel.

Tags: Hot Work Alloy Tool Steel.

Note It is used when the surface temperature is generally more than 200 °C.

Density g cm3

One of the more common free-cutting steels, which can replace 15 steel.

I also copied it online :

g-x2crnimnmonb21 16 5 3c≤

si≤mn：

p≤s≤crni 15～17

nnb for your reference.

Product Introduction: High alloy content, non-magnetic. This high alloy content also results in high tensile strength and yield strength, while having very good corrosion resistance, especially in seawater and coastal environments.

x2crnimnmonnb21-16-5-3

Physical Properties: Density (kg dm3):

Resistivity at 20 °C (mm2 m):

Magnetizing Capacity: No.

Thermal conductivity at 20°C (wm k): 14

Specific heat capacity at 20°C (J kg K): 460

Thermal expansion (k-1).

20–100°c： x 10-6

20–200° x 10-6

20–300° x 10-6

20–400°c： x 10-6

Corrosion resistance: Excellent corrosion resistance in rural, industrial and coastal environments, and can be used in the food and beverage industry when the acid concentration is not too high. It is suitable for low-temperature xiaoan acid and organic acid solutions, as well as chlorine-containing environments. Since this grade of stainless steel resists intergranular corrosion after welding, i.e. under sensitive conditions, corrosion tests according to the following corrosion test specifications are sufficient to determine its corrosion resistance:

afnor nf 05-159 – astm a262-75. practice e – din 50914

Note that the presence of large amounts of manganese may adversely affect pitting resistance. This means that although this steel is corrosion resistant in seawater, it is less resistant to pitting than equally alloyed low-manganese steel.

Mechanical properties: Solution annealing in the temperature range of 1020 -1050 and then rapid cooling in air or water can obtain the best physical and manufacturing properties. Under solution annealing conditions, the following mechanical properties can be obtained when tested in the longitudinal direction:

Yield strength (n mm2): 365

Tensile strength (n mm2) rm: 700 950

Tensile elongation (%)a5: 35

Impact energy (J) 25°C ISO-V: 85

Chemical Composition: Carbon: Phosphorus:

Chromium: Sulfur:

Nickel: Nitrogen: Manganese: Niobium:

Molybdenum: Vanadium:

Silicon: When forging, the workpiece is usually preheated to 950°C-1150°C, and the forging temperature is between 900°C-1100°C. After forging, the forged parts must be quickly cooled in air or water to avoid the formation of any undesirable phases that could adversely affect corrosion and/or mechanical properties.

DIN17223 corresponds to GB 4357 "Carbon Spring Steel Wire".

DIN17223 is a German standard.

DIN17223 1-1984 Round Steel Wire For Springs Quenched Cold-Drawn Carbon Steel Wire for SpringDelivery Terms Suitable for lead quenching cold-drawn carbon round steel wire, steel wire is commonly used in the manufacture of coil springs (tension, compression and twist springs), spring washers and other wire springs.

Note: Ordering non-circular cross-section, straightened wire and cut to length by spring wire quenched water-cooled spring wire, as well as ordering surface treated (galvanized and tinned) spring wire can refer to this standard, in the above case, it should be noted that the mechanical properties, dimensional accuracy and surface finishing specified in this standard are not applicable to these products, and should be separately agreed.

In addition to the technical conditions specified in this standard, unless otherwise agreed, DIN 17010 "General Technical Conditions of Delivery for Steel and Steel Products" shall apply. DIN17014 1 "Heat Treatment of Iron and Steel Materials, Technical Principles" stipulates that lead quenching is to obtain a structure that is conducive to subsequent cold processing, including austenitization and rapid cooling to the thermal place above the temperature of the martensitic point and the division of grade D steel wire with its mechanical properties, and there are special requirements for the surface state of grade D.

Carbon spring steel wire is mostly made of 65, 65mn, 82b, 72a, 72b steel wire, which is characterized by low plasticity, strong elasticity and strong stress resistance.

DIN belongs to German standard ferritic stainless steel, according to EN 10088-1-2005

DIN alloy is a new type of heat-resistant steel developed for boiler plants, etc. It is mainly used in the manufacture of power station pots, economizers, pipe clamps and pipe hooks and other components. It is characterized by good oxidation resistance at temperatures below 700; Good cold plasticity; Excellent weldability.

The chemical composition of DIN is shown below

It is alloy steel for heat-resistant boilersAlias x10crwmovnb9-2Chemical composition.

Carbon C: Silicon Si:

Manganese mn:phosphorus p:

Sulfur S: Chromium Cr:

Molybdenum mo:nickel ni:

Vanadium V: Niobium Nb:

Titanium ti:

Al-al:

Nitrogen n: