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Acero M2

El acero para herramientas M2 es acero de alta velocidad de tungsteno-molibdeno con una composición de carbono bien equilibrada y alta tenacidad.

¿Qué es el Acero M2?

El acero para herramientas M2 es acero de alta velocidad de tungsteno-molibdeno con una composición de carbono bien equilibrada y alta tenacidad. También se llama acero JIS SKH51 y DIN 1.3343. Es fácil sobrecalentar, controlar la temperatura de calentamiento de enfriamiento es necesario y los requisitos de protección del tratamiento térmico son estrictos. Se usa ampliamente para hacer herramientas de corte debido a su gran dureza y resistencia al desgaste. Ha reemplazado el acero de alta velocidad T1 en la mayoría de las aplicaciones, se ha convertido en la primera opción del cliente debido a su gran rendimiento y relación de precio de rendimiento extremadamente alto. Las propiedades del acero y el tratamiento térmico son las siguientes.

1.3343 Características del acero

1. Dureza (estado original de fábrica): ≤255HB
2. Temperatura de endurecimiento: 1220 ℃ -1240 ℃
3. Dureza (después del tratamiento térmico): ≤63HRC
4. Es una gran opción en aplicaciones de corte debido a su gran resistencia al desgaste y tenacidad.
5. Carburo distribuido uniformemente y alta tenacidad.
6. Se puede utilizar para hacer fresas, escariadores, brochas, cortadoras de engranajes y otras herramientas de la industria.

Tratamiento térmico de acero M2 y producido

Maquinabilidad

La conformación de aceros para herramientas M2 puede ejecutarse utilizando estrategias de rectificado. Pero, que tiene mala capacidad de molienda. Por eso se les llama acero para herramientas de maquinabilidad «mediana» en condiciones de recocido. La maquinabilidad de estos aceros es solo el 50% de la de los aceros para herramientas de endurecimiento por agua o grupo W fácilmente mecanizables.

Recocido

Calentar a 1600 ° F, remojar completamente al calor. El horno se enfría 25 ° F por hora a 900 ° F, el aire se enfría a temperatura ambiente. Dureza recocida aproximada 241 Brinell máximo.

Alivio de la tensión del material sin endurecer: Caliéntelo lentamente de 1200 a 1250 ° F. Remoje durante dos horas por pulgada de espesor al calor. Enfriamiento lento (horno frío si es posible) a temperatura ambiente.

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OT718  mold steel

After forging and rolling, the structure is dense, 100% ultrasonic inspection, no pores, pinhole defects.

1. a) The template of the large mold, the high surface requires household appliances.
2. b) Suitable for large mirror plastic molds, such as automobiles, home appliances, audio and video products, etc.
3. c) Can be used for plastic molds with mirror polishing requirements, suitable for injection molds, blow molds for PA, POM, PS, PE, PP, ABS plastics.
4. d) High polishing and demanding mold cavity.                                                                                                                                Hardened

In order to improve the service life of the mold to more than 800,000 mold times, the pre-hardened steel can be implemented by hardening and low-temperature tempering. When quenching, first preheat at 500-600 ℃ for 2-4 hours, and then keep it at 850-880 ℃ for a certain period of time (at least 2 hours), put it in oil and cool it to 50-100 ℃, and leave it to air-cool. -52HRC, in order to prevent cracking, a low temperature tempering treatment at 200 ° C should be performed immediately. After tempering, the hardness can be maintained above 48HRC.

Collapse this section nitriding

Nitriding treatment can obtain high hardness surface layer structure, the hardness of the surface layer after nitriding reaches 650-700HV

(57-60HRC) The life of the mold can reach more than 1 million times. The nitrided layer has the characteristics of dense organization and smoothness. The mold release property and the resistance to humidity and alkali corrosion are improved.

Quenching and tempering

Quenching temperature 840 ~ 870 ° C, tempering temperature 200 ~ 500 ° C, hardness 50 ~ 55HRC

Edit the material properties of this paragraph

Folding physical properties

(Sample hardness 340HBW, at room temperature and high temperature)

1) Temperature 20 ° C / 200 ° C / 400 ° C, density 7.8g / cm / 7.75g / cm / 7. 7g / cm.

2) Temperature 20 ~ 200 ° C / 20 ~ 400 ° C, coefficient of linear expansion: 12.6 × 10K / 13.5 × 10K.

3) Temperature 20 ° C / 200 ° C / 400 ° C, thermal conductivity 29.0W · (m · K) /29.5W· (m · K) /31.0W· (m · K)

4) Temperature 20 ° C / 200 ° C / 400 ° C, elastic modulus: 205000MPa / 200000MPa / 185000MPa

Folding mechanical properties

(Sample hardness 340HBW)

1) Temperature 20 ° C / 200 ° C / 400 ° C, tensile strength 1100MPa / 1050MP8 / 850MPa.

2) Temperature 20 ° C / 200 ° C / 400 ° C, conditional yield strength 980MPa / 925MPa / 770MPa.

3) Temperature 20 ° C / 200 ° C / 400 ° C, reduction in area of ​​49% / 51% / 52%

4) Temperature 20 ° C / 200 ° C / 400 ° C, elongation 13% / 14% / 16%

5) Temperature 20 ° C / 200 ° C / 400 ° C, impact toughness (≥) 20J / cm / 32J / cm / 42J / cm

Critical temperature

critical point

Temperature (approximate) / ℃

Expand the expansion coefficient of this paragraph

Temperature / ℃

Linear (expansion) expansion coefficient / C

Edit the thermal conductivity of this paragraph

Temperature / ℃

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1.2738 mold steel

1.2738 is a very common German standard plastic mold steel, usually referred to as 738 for short.

Performance characteristics

① Excellent polishing and photoetching performance;

②Good machining performance;

③ High purity and uniformity;

④ Uniform hardness;

⑤ Follow-up nitriding treatment or local flame quenching can be used to improve surface strength and surface wear resistance and reduce surface failure.

Compared with the traditional plastic mold steel P20, 1% nickel is added to OT718, which has better toughness and hardenability, and performs better in molds with large cross-section sizes. This type of steel is suitable for large-scale, especially thicker than 400mm, plastic molds that require uniform hardness, high toughness, and good surface polishing performance, such as TV frames and back shells, copier cases, bumpers, shock absorbers, instrument panels, etc. Large molds, as well as trash can molds, die-casting mold holders, etc.

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34CrNiMo6 round steel, does this kind of steel suitable for your company? It is the hot sales of the Otai company. Last year, we sold a lot of steel abroad .why clients repeat the order from our company? I want to share some information about the 34CrNiMo6 with you.

34CrNiMo6 round steel, does this kind of steel suitable for your company? It is the hot sales of the Otai company. Last year, we sold a lot of steel abroad .why clients repeat the order from our company? I want to share some information about the 34CrNiMo6 with you.

One of our clients from Singapore bought the 34CrNiMo6 round steel from our company .this is a company served the marine and offshore industry .specialising in marine pipes and fittings and engineering services. 34CrNiMo6 steel is the perfect material applies to the requirement of their company. Our customer is satisfied with our product.

34CrNiMo6 Alloy Steel is a quenching and tempering steel with high strength, high toughness, and good hardenability. A heat treatable, low alloy steel containing nickel, chromium, and molybdenum as per DIN Germany standard.

34CrNimo6 steel has high strength, high toughness, and good hardenability. EN / DIN 34CrNiMo6 alloy steel has the stability of resistance to overheating, but the white sensitivity of 34CrNiM06 is high. It also has the temper brittleness, so the weldability of 34CrNiMo6 material is poor. The steel 34CrNiMo6 needs high temperature preheating before welding to eliminate the stress after welding processing.

Application of 34CrNiMo6 round steel

34CrNiMo6 alloy structural steel is used in ships, vehicles, aircraft, missiles, weapons, railways, bridges, pressure vessels, machine tools, etc. 34CrNiMo6 European standard alloy structural steel grade, corresponding to China’s grade 34Cr2Ni2Mo, is a typical difficult-to-machine material, widely used in the manufacture of engine camshafts and connecting rods and other important parts.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

1.2312 Sheet plate suitable for make plastic mould , use for production high-end Auto Parts and phone parts . OTAI SPECIAL STEEL is Din W-Nr 1.2312 Tool Steel stockholders and suppliers from china. we have more 16 years experience in 1.2312 special tool steel plate, round,  bar, flat bar, square supply.

1.2312 Steel is a high quality plastic tool mold steel . 1.2312 is 1.2311 add about 0.08% Sulphur improve free cutting ability of 1.2311 tool steel . It belong to the high quality medium carbon, Pre-hardness(28~34HRc) plastic mould steel . It needn’t further Make heat treatment for make plasitc injection moulding.
1.2312 tool steel properties is very simliar with ASTM AISI P20S steel . At most work environment,40CrMnMoS8-6/1.2312 steel is equivalent with P20S tool steel .

Related Specifications of Din WN-r 1.2312 tool steel material

Din W-Nr 1.2312 Tool Steel is a nice Plastic Mould steel . we can supply the 1.2312 round bar, steel flat bar, plate, hexagonal steel bar and steel square block . 1.2312 steel Round bar can be sawn to your required lengths as one offs or multiple cut pieces .  Rectangular pieces can be sawn from flat bar or plate to your specific sizes . Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances…

1.2312 Sheet Plate  Tool steel is a plastic injection mould steel material . the steel by “super clean” produce process, pre-hardened .  showing the height of micro pure and excellent homogeneous structure . excellent polishing and light etching engraving . After heat treatment, processing and polishing performance is very good . can be carried out, and can be processed, suitable for the surface treatment of chrome, material hardness .  good toughness, good mechanical processing performance . Gold microstructure is martensite and bainite structure . Main be applied to in plastic steel mold. like car injection moulding, PVC, PP plastic injection molding etc.

1.2312 tool steel round bar and flat sections can be cut to your required sizes. 1.2312 tool steel ground bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. 1.2312 steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.

Tel: 0086-769-23190193

Fax: 0086-769-88705839

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Recently a client from Europe sends a quote to us about the Seamless steel tube. So, today I will share some information about the seamless steel tube with you.

Otai company export steel arrange from the alloy steel to tool steel. The seamless steel tube is also included. ASTM A53/ASTM A106/s355/s752/st37 ,etc. If you have a need, you can choose us as your steel provider.

A steel pipe made of a single piece of metal without seams on the surface is called a seamless steel pipe. According to the production method, seamless tubes are divided into hot-rolled tubes, cold-rolled tubes, cold drawn tubes, extruded tubes, and jacked tubes.

Depending on the application, there are thick-walled pipes and thin-walled pipes. Seamless steel pipes are mainly used for petroleum geological drilling pipes, cracking pipes for the petrochemical industry, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors, and aviation.

Classification of Seamless steel tube

Jointless steel pipe along the perimeter of its cross-section. According to different production methods, it is divided into hot-rolled pipe, cold-rolled pipe, cold-drawn pipe, extruded pipe, pipe jack, etc., all have their own process regulations. Materials are ordinary and high-quality carbon structural steel, low alloy steel, alloy steel, stainless acid-resistant steel, etc. According to the purpose, it is divided into two types: general-purpose (for water transmission, gas pipelines and structural parts, mechanical parts) and special purpose (for boilers, geological exploration, bearings, acid resistance, etc.).

Use of Seamless steel tube

• 1 Seamless steel tubes are widely used. General-purpose seamless steel tubes are rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel with the largest output, and are mainly used as pipelines or structural parts for conveying fluids.
• 2 It is divided into three categories according to different uses:
• Supply according to chemical composition and mechanical properties;
• Supply according to mechanical properties;
• Supply according to the hydrostatic test.

3 For steel pipes supplied according to categories a and b, if they are used to withstand liquid pressure, hydraulic tests are also required.

Special-purpose seamless pipes include boiler seamless pipes, chemical and electric power, geological seamless steel pipes and petroleum seamless pipes.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

ASTM 1020 Seamless Tube any size have Adequate stock for sales promotion in April .

OTAI SPECIAL STEEL is 1020 Mild Steel stockholders and suppliers from china. we have more our 16 years experience in special steel supply.

AISI 1020 Steel is a mild carbon steel , 1020 steel belong to the high quality low carbon steel, cold extrusion, carburizing and hardening steel . The low steel strength, toughness, plasticity and weldability are good . Tensile strength of 253-500 mpa, the elongation is 24% or higher .

ASTM 1020 mild steel , we can supply the round bar, flat bar, plate, hexagonal and square block . Diameters can be sawn to your required lengths as one offs or multiple cut pieces . Rectangular pieces can be sawn from flat bar or plate to your specific sizes . Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances .

ASTM 1020 mild steel is suitable for making cars, tractors and general machinery  . small and medium-sized carburizing and carbonitriding and other parts, such as car hand brake shoe .  fork lever shaft, transmission speed, transmission driven gear and the tractor on the camshaft .  hanging equalizer axle, equalizer, inner and outer bushing, etc. .  In the condition of hot rolling or normalizing used in the manufacture of force is not big . but all kinds of high toughness requirement of mechanical parts ;

ASTM 1020 Seamless Tube In medium and heavy machinery industry . such as forging or suppression of rod, shackle, leverage, sleeve, fixture, etc.  . In steam turbine and boiler manufacturing for more pressure or less 6N/㎡ .  the temperature of 450 ℃ or less corrupt media work of pipes, flanges, header, and various kinds of fasteners . On the railway and locomotive vehicles used in the manufacture of the crosshead and piston castings .

1020 mild steel round bar and flat sections can be cut to your required sizes . 1020 steel ground bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances . 1020 steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes .

Tel: 0086-769-23190193

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OTAI Special steel supply the Seamless carbon steel pipe and the Alloy steel pipe. It is including the steel grade 1020, 1045, 4140,8620, Q345 and so on. Usually, the random length is ranged in 6-12meters.

The seamless carbon steel pipe has a hollow cross section, and is widely used as a pipeline for transporting fluids. For example used on the pipeline for transporting oil, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, this steel pipe has the same bending and torsional strength and light weight. It is an economical cross-section steel. It is widely used in manufacturing structural parts and mechanical parts. Like using on petroleum drill rods, automotive transmission shafts, Bicycle frames and steel scaffolding used in building construction.

Seamless carbon steel pipe is also an indispensable material for various conventional weapons. Gun barrels, barrels, and the like must be made of steel pipes. It can be divided into round tubes and special-shaped tubes according to the different cross-sectional area shapes. Since the circular area is the largest under the condition of equal perimeter, more fluid can be transported by the circular tube. In addition, when the cross section of the ring is subjected to internal or external radial pressure, the force is more uniform.
The use of steel pipes to manufacture annular parts can improve the utilization rate of materials. It can simplify the manufacturing process. It saves materials and processing hours, such as rolling bearing rings, jack sleeves, etc. And seamless carbon steel pipe have been widely used at present.

Otai exports various tool steel, alloy steel and carbon steel to more than 35countries from Europe and America, Middle East and Asia. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. We undertake every order to the end and solve customer’s problem without any hesitate on responsibility.

Tel: 0086-769-23190193

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Time flies, today is the first day of April, 42CD4 Plate mold steel is loaded today, Otai keeps the daily storage to serve better our customers. The 42CD4 Plate  will be our main product in 2020.

Time flies, today is the first day of April, 42CD4 Plate mold steel is loaded today, Otai keeps the daily storage to serve better our customers. The 42CD4 Plate mold steel will be our main product in 2020.

After reading the reports about the globe news, I deeply feel the world is just like a small village as the development of the internet. Every country is tortured by the relentless pandemic, especially in Italy and America .when I witness the fatal disaster, I can’t help thinking about the meaning of life.

In the past time, we may complain a lot, blame someone .however, the disaster teaches us we should cherish life and the people around us. I think we should learn to be thankful, live a meaningful life. AS a member of the Otai special steel company, I am glad to be one of them. we will keep a sincere attitude to serve our customers. We will keep providing better 42CD4 Plate mold steel for the clients.

42CD4 steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. The following datasheet gives an overview of AISI 4140 alloy steel.

42CD4 steel material is a high-quality Quenched and Tempered Alloy Structural steel. It belongs to the high-quality medium carbon alloy steel, Oil Quenched & Tempered Hardness is 28-34 HRC. 42CD4 Annealing delivery hardness less than 250HB.

42CD4 Plate mold steel equivalent material

♦JAPAN♦ : JIS SCM440 alloy steel

♦GERMANY♦ : DIN WN-r 1.7255 / 42CrMo4 steel alloy

♦CHINA♦ : GB 42CrMo steel

♦BRITISH♦ : BS 708M40

Otai company is the biggest 42crmo4 stockist in the south of China. 4140 with a thickness of 45mm/41mm is super suitable for the mask machine. we have storage in our factory. The storage is limited, please feel free to connect with me.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

40Cr Round Bar hot rolled sales promotion in the coming month of April . Hope in the April , all the bad situation could overcome  .  The coronavirus could dispear all over the world .

40Cr Round Bar Alloy steel material stockholders and suppliers from China . -OTAI SPECIAL STEEL . we have more 16 years experience in 40Cr steel plate, round bar, flat bar, square supply . 40Cr alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. The following datasheet gives an overview of 40Cr alloy steel.

40Cr alloy steel material is a high quality Quenched and Tempered Alloy Structural steel . It belong to the high quality medium carbon alloy steel, Oil Quenched & Tempered Hardenss is 28-34 HRC . 40Cr Annealing delivery hardenss less than 250HB .

40Cr Hot rolled round bar size diameter 20-130MM . Many inventory for sales promotion to regular customer .

We can supply the round bar, steel flat bar, plate, hexagonal steel bar and square, block . 40Cr alloy steel Round bar can be cut to your required lengths as one offs or multiple cut pieces . Rectangular pieces can be cut from flat bar or plate to your specific sizes . Ground tool steel bar can be supply, providing a quality precision finished bar to tight tolerances .

40Cr Tool steel is a alloy structural steel ,  40Cr steel is used for engineering structural, like high tensile shafts . bolts and nuts, gears, pinions and spindles . Locomotive traction with the big gear, supercharger drive gear, pressure vessel . rear axle, gear load of connecting rod and a spring clip,4140 can also be used to under 2000 m deep well of oil drill pipe joint and the fishing tool .  and can be used for bending machine mould, etc .

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com