There are metal materials commonly used by processing manufacturers to deal with. This time I will share 24 commonly used materials for machinery and mold processing. The materials are all understood, and it is easier to match the knife.

1, 45-high-quality carbon structural steel, is the most commonly used medium-tempered and tempered steel

Main features: The most commonly used medium carbon quenched and tempered steel has good comprehensive mechanical properties, low hardenability, and cracks easily during water quenching. Small parts should be quenched and tempered, and large parts should be normalized. Application examples: Mainly used for manufacturing high-strength moving parts, such as turbine impellers and compressor pistons. Shafts, gears, racks, worms, etc. Welding parts should be preheated before welding and stress relief annealing after welding.

2. Q235A (A3 steel)-the most commonly used carbon structural steel

Main features: High plasticity, toughness and welding performance, cold stamping performance, as well as certain strength and good cold bending performance. Application examples: Widely used for parts and welding structures with general requirements. Such as low tension rods, connecting rods, pins, shafts, screws, nuts, ferrules, brackets, bases, building structures, bridges, etc.

3. 40Cr-one of the most widely used steel types, which is an alloy structural steel

Main features: After quenching and tempering, it has good comprehensive mechanical properties, low temperature impact toughness and low notch sensitivity, good hardenability, high fatigue strength when oil-cooled, and parts with complex shapes when water-cooled. Generate cracks, moderate cold bend plasticity, good machinability after tempering or tempering, but poor weldability, easy to crack, preheat to 100 ～ 150 ℃ before welding. Generally, it can be used in the quenched and tempered state. Carburizing and high frequency surface hardening. Application example: After quenching and tempering, it is used to manufacture medium-speed and medium-load parts, such as machine tool gears, shafts, worms, spline shafts, thimble sleeves, etc., after quenching and tempering and high-frequency surface hardening, it is used to produce high-hardness and resistance to surface. Grinding parts, such as gears, shafts, main shafts, crankshafts, mandrels, sleeves, pins, connecting rods, screws and nuts, intake valves, etc., are used to produce heavy-duty, medium-speed impact after quenching and tempering at moderate temperatures Parts, such as oil pump rotors, sliders, gears, main shafts, collars, etc., are used to manufacture heavy-duty, low-impact, wear-resistant parts such as worms, spindles, shafts, collars, etc. after quenching and low temperature tempering. Carbon After the nitriding, the transmission parts, such as shafts and gears, with larger size and higher low temperature impact toughness are manufactured later.

4, HT150-gray cast iron

Application examples: gear box, machine bed, box, hydraulic cylinder, pump body, valve body, flywheel, cylinder head, pulley, bearing cover, etc.

5, 35-common materials for various standard parts and fasteners

Main features: Appropriate strength, good plasticity, high cold plasticity, and good weldability. It can be partially upset and brushed in cold state. Low hardenability, use after normalizing or quenching and tempering Application examples: Suitable for manufacturing small cross-section parts, parts that can withstand large loads: such as crankshafts, levers, connecting rods, shackles, etc., various standard parts, fasteners .

6, 65Mn-commonly used spring steel

Application examples: small flat and round springs, cushion springs, springs, spring rings, valve springs, clutch springs, brake springs, cold-rolled coil springs, snap springs, etc.

7, 0Cr18Ni9-the most commonly used stainless steel (US steel number 304, Japanese steel number SUS304)

Characteristics and applications: It is the most widely used as stainless heat-resistant steel, such as food equipment, general chemical equipment, and original industrial equipment.

8. Cr12——Commonly used cold work die steel (American steel grade D3, Japanese steel grade SKD1)

Features and applications: Cr12 steel is a widely used cold work die steel, which is a high carbon and high chromium type bainite steel. The steel has good hardenability and good wear resistance. Because the carbon content of Cr12 steel is as high as 2.3%, the impact toughness is poor, it is easy to brittle, and it is easy to form non-uniform eutectic carbide. It has good abrasion resistance, and is mostly used to manufacture cold punches, punches, blanking dies, cold heading dies, cold extrusion dies and cold dies, drill sleeves, and gauges that require high wear resistance with less impact load , Drawing die, embossing die, wire drawing board, drawing die and cold pressing die for powder metallurgy.

9, DC53-commonly used cold-work die steel imported from Japan

Features and applications: High-strength and toughness cold-working die steel, Japan Datong Special Steel Co., Ltd. steel grade. After high temperature tempering, it has high hardness, high toughness, and good wire cutting. Used for precision cold stamping die, drawing die, wire rolling die, cold punching die, punch, etc. 10, SM45-ordinary carbon plastic mold steel (Japanese steel number S45C)

10.DCCr12MoV-wear-resistant chrome steel

Made in China. Compared with Cr12 steel, the carbon content is lower, and Mo and V are added. The carbide unevenness is improved. MO can reduce carbide segregation and improve hardenability. V can refine grains and increase toughness. This steel has high Hardenability, cross-section below 400mm can be fully hardened, good hardness and wear resistance can be maintained at 300 ~ 400 ℃, higher toughness than Cr12, small volume change during quenching, and high wear resistance and Good comprehensive mechanical properties. So it can manufacture various molds with large cross-sections, complex shapes, and withstanding large impacts, such as ordinary drawing dies, punching concave dies, punching dies, blanking dies, cutting dies, piping dies, wire drawing dies , Cold extrusion die, cold cutting scissors, circular saw, standard tools, measuring tools, etc.

11.SKD11-acier chromé ductile

Japon Hitachi production. Améliorer techniquement la structure coulée en acier et affiner les grains. Par rapport au Cr12mov, la ténacité et la résistance à l'usure ont été améliorées. La durée de vie du moule a été prolongée.

12, acier de travail à froid à haute teneur en carbone à haute teneur en carbone D2

Fabriqué aux États-Unis. Il présente une trempabilité, une trempabilité, une résistance à l'usure élevées, une résistance à l'oxydation à haute température, une bonne résistance à la rouille après trempe et polissage et une petite déformation par traitement thermique. Il convient à la fabrication de divers moules de travail à froid qui nécessitent une haute précision et une longue durée de vie. Outils et outils de mesure, tels que matrice de traction, matrice d'extrusion à froid, couteau de cisaillement à froid, etc.

13.SKD11 (SLD) - acier à haute teneur en chrome non déformable et résistant

Japon Hitachi production. Au fur et à mesure que la teneur en MO et V dans l'acier augmente, la structure coulée en acier est améliorée, les grains sont affinés et la morphologie des carbures est améliorée, de sorte que la forte ténacité de l'acier (résistance à la flexion, flexion, résistance aux chocs) Etc.) Plus élevée que SKD1, D2, la résistance à l'usure a également augmenté et a une résistance au revenu plus élevée. La pratique a prouvé que la durée de vie de ce moule en acier a été améliorée par rapport à Cr12mov. Souvent, la fabrication de moules avec des exigences élevées, telles que des moules de traction, des moules à chocs pour meules.

14, dureté élevée DC53 et acier à haute teneur en chrome

Production japonaise de Datong. La dureté du traitement thermique est supérieure à SKD11. Après un revenu à haute température (520-530), il peut atteindre une dureté élevée de 62-63HRC, DC53 dépasse SKD11 en force et résistance à l'usure. La ténacité est deux fois plus élevée que SKD11. Il y a peu de fissures et de fissures dans la fabrication de moules de travail à froid. Cela améliore considérablement la durée de vie. La contrainte résiduelle est faible. La contrainte résiduelle est réduite en retournant à haute température. Parce que les fissures et les déformations après la coupe du fil sont supprimées. L'usinabilité et l'abrasivité dépassent SKD11. Pour les matrices d'estampage de précision, le forgeage à froid, les matrices d'emboutissage profond, etc.

Acier rapide 15.SKH-9-général avec résistance à l'usure et ténacité élevées

Production Hitachi au Japon. Utilisé pour la matrice de forgeage à froid, la machine à refendre, la perceuse, l'alésoir, le poinçon, etc.

16.ASP-23 —— Acier rapide pour métallurgie des poudres

Made in Sweden. Extremely uniform carbide distribution, wear resistance, high toughness, easy processing, stable heat treatment size. Used for various long-life cutting tools such as punches, deep drawing dies, drilling dies, milling cutters and shear blades .

17.P20——Generally required size plastic mold

Produced in the United States. Corrosive operation. Pre-hardened HB270-300. Hardened hardness HRC52.

18, 718-high-demand size plastic mold

Made in Sweden. Especially for electro-erosion operation. Pre-hardened HB290-330 in factory state. Hardened hardness HRC52

19.Nak80-high mirror, high precision plastic mold

Produced by Datong in Japan. Pre-hardened HB370-400. Hardened hardness HRC52

20, S136-anti-corrosion and mirror-polished plastic mold

Made in Sweden. Pre-hardened HB <215. Hardened hardness HRC52.

21, H13-common commonly used die casting mold

For aluminum, zinc, magnesium and alloy die casting. Hot stamping die, aluminum extrusion die,

22.SKD61-advanced die casting mold

Produced by Hitachi, Japan, the electro-hydraulic remelting technology has a significant improvement in service life over H13. Hot stamping die, aluminum extrusion die,

23, 8407-advanced die casting mold

Made in Sweden. Hot stamping die, aluminum extrusion die.

24.FDAC-Added sulfur to enhance its machinability

The factory pre-hardened hardness is 338-42HRC, which can be directly engraved without quenching and tempering. It is used for small batch molds, simple molds, various resin products, sliding parts, mold parts with short lead times. Zipper molds, Glasses frame mould