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The 42CD4 Plate hot treatment, an important part of the mask factory. otai suppies the parts for the mask factory all over the world.

When I wake up every day,the first thing is to check the statistic about the coronavirus. whether it turns to be better now? life is precious for everyone. As reported, I notice that the epidemic could infect two-thirds of the globe. it has highly contagious, we can’t underestimate it.

The government in china encourage us to wear the mask in public and washes our hands frequently. The demand for a mask is over the supply, so it is busy for a mask factory in every country. So do our otai company, because we supply The 42CD4 Plate hot treatment for the mask factory.

My boss sends us a photo of the parts of the mask machine to us in the morning today. I am surprised to see the photo, it looks good .it is the busy season for our mill because many mask-producers are waiting for the product .the size of the part is 40*110*125, another size is 44*118.1*200 .the price is appreciated .

If you have the demand, please connect with me as soon as possible .we hope the shortage of the mask will be solved soon. we also hope the epidemic will be cured soon.

Introduction of otai company

“Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.” otai company is trying to provide a high-quality product and responsible for every order.

Otaisteel is a stable and reliable supplier for fortune 500 companies at home and abroad, such as ThyssenKrupp, china’s north industries group corporation limited. Otai exports various tool steel and alloy steel to more than 30 countries from Europe and American, the Middle East, and Asia. our steel materials meet DIN/ ASTM/EN/JIS etc different international standards.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

HS6-5-2 Annealled Round Bar Qualified Sales Promotion After Coronavirus in China in March . This time Chinese Spring Festival holiday was very special . We did not use this holiday to party with all our relatives and friends as usual . In the end there was no travel to relax . Instead , we were stayed at home with close relatives . Due to the effects of the new coronavirus . We respond to government calls to isolate ourselves and prevent the spread of the virus . Our efforts have paid off. Most of us are now back to work .

In this month , our HS6-5-2 Annealled Round Bar Qualified have sales promotion to our regular customer . Thanks for all your pay attention to us . All of us hope the world are peaceful .

Otai Special Steel have HS6-5-2 Annealled Round Bar Qualified Sales Promotion After Coronavirus in China in March .

HS6-5-2 Annealled Round Bar Qualified Tool Steel Chemical Composition Properties

HS6-5-2 Annealled Round Bar Qualified Mechanical Properties

• Physical Properties of HSS M2 (Corresponding materials )

• HS6-5-2 Annealled Round Bar Qualified  Tool Steels Properties Mechanical

• HS6-5-2 Annealled Round Bar Qualified Steels Thermal Properties

 Forging of AISI M2 High Speed Steel  (Corresponding materials )

Pre heat M2 HSS steel slowly and uniformly to 850-900°C. The heat should then be increased more quickly to the forging temperature of 1050-1150°C. If during the forging the temperature of the M2 high speed tool steel material drops below 880-900°C, re-heating will be necessary. Cool the M2 steel component very slowly after forging.

• Anneal

Heat to 1600° F, soak thoroughly at heat. Furnace cool 25° F per hour to 900° F, air cool to room temperature. Approximate annealed hardness 241 Maximum Brinell.

Stress Relief of Unhardened Material: Heat slowly to 1200 to 1250° F. Soak for two hours per inch of thickness at heat. Slow cool (furnace cool if possible) to room temperature.

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

42CD4 Round Bar Hot Rolled, otai have promotion about it.

Compared with last week, I find the people are more and more on the street. The company and factory are gradually resuming production. People back to the office, devoted to the work. everything turns to be normal. Everyone in china hopes the epidemic will be disappeared soon. we have 42CD4 Round Bar Hot Rolled in storage. If you have the demand, please let me know.

We can’t predict the future, everything is changeable. We prepared to pay a visit with our clients abroad last year. However, the outbreak of the coronavirus destroyed our plan, so we have to postpone our agenda. To improve the cooperation with our loyal clients, we will arrange the interview this year. Although it is a little hard at the beginning of 2020, we hope the last days will be better day by day. we have the promotion about 42CD4 Round Bar Hot Rolled this month, the quality is assured.

promotion about the 42CD4 round bar hot rolled

OTAI Steel focuses on alloy steel business for more than 20 years, becomes one of the leading special steel stockholders in the South of China step by step. 42CD4 round bar hot rolled become our key product. the black surface plate can support immediately shipment after order confirmed, and milled plate can proceed per customer’s requirement.

OTAI have 10 band saw and milling machine, cut to different size and milling precision requirement per different customer. 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.4140 | 42CD4 delivery hardness less than 250HB.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

AISI 4140 AISI 4140 Q+T Round Bar Sales Promotion after coronavirus . Thanks for all your attention to us for China . We are fine now . We are back to office with facemask . And everything like before , surely we may work very hard in this year . Most of Mill Steel factory have resumed production from last week . All productions are fully stocked . Just send your new inquiry to us to get the price  . And the AISI 4140 materials may have new discount now . Please contact with us directly .

AISI 4140 Q+T Round Bar Sales Promotion after Chinese Spring Festival holiday . Due to coronavirus , all company in China have delay to work after Chinese New Year . But the strictly situation only for Wuhan . All have controlled by government . We all back to office this week , and most of important company have resumed production last week .

In the beginning of this month , we have AISI 4140  Q+T Round Bar Sales Promotion . Thanks all our regular customer to care about our healthy and situation . The details please take the below information for confirm .

AISI 4140 Q+T Round Bar Sales Promotion Chemical Composition

 Mechanical Properties of AISI Alloy 4140 Steel Bar, Plates, Square

Forging

Preheat the steel carefully, heat to 1150 oC – 1200 oC maximum, hold until temperature is uniform throughout the section.
Do not forge below 850 oC.Following forging operation the work piece should be cooled as slowly as possible.

 AISI 4140 Steel Grade Heat Treatment

• Annealing
  Heat ASTM 4140 steels to 800 oC – 850 oC, hold until temperature is uniform throughout the section and cool in furnace.
• Normalizing
  Heat steel alloy 4140 to 870 oC – 900 oC, hold until temperature is uniform throughout the section, soak for 10 – 15 minutes and cool in still air.
• Tempering
  Re-heat 4140 grade steel to 550 oC – 700 oC as required, hold until temperature is uniform throughout the section, soak for 1 hour per 25 mm of section, and cool in still air.

Hardening of AISI Alloy Steel 4140

AISI alloy 4140 steel bar, plate and square can be hardened by cold working, or heating and quenching.

SAE 4140 alloy steel is usually supplied ready heat treated to hardness in 18-22 HRC. If further heat treatment is required, then heat to 840 oC – 875 oC, hold until temperature is uniform throughout the section, soak for 10 – 15 minutes per 25 mm section, and quench in oil, water, or polymer as required.

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

The coronavirus is the hottest issue all over the world .compared with the February, the epidemic is under-control now in china. our government takes a lot of measures to resume the development of economic.

Will the steel industry be affected by the epidemic? I don’t think so.

As reported, 90 key railway projects in China resume construction. with 199,000 people starting working at the construction sites in question, as announced by China Railway Corporation (CRC).

Meanwhile, CRC is actively promoting preliminary work at other major railway projects. including the Sichuan-Tibet railway, the Chengdu-Chongqing high-speed railway.  the Xi’an-Chengdu high-speed railway is also included. CRC is pushing to start construction on such projects as early as possible.

Meanwhile, CRC has run 115 special trains to transport workers.It transporting 123,000 people to go back to work. Railway passenger traffic in China has risen each day since February 20.thus providing solid support for the resumption of production in China. because the shortage of labor is the biggest problem facing the industry in China at the moment.

Previously, China’s Ministry of Finance announced that it will carry out a proactive fiscal policy to support the construction of key projects.It will boost demand for steel. So the steel industry will not be affected by the epidemic .the demand for steel will be increasing soon.

After analyzing the statistics of the crude steel production I mentioned before, we can find that steel production in China still keeps increasing.

Otai Steel supplies a wide range of carbon, alloy, and stainless steel products. including high-speed tool steel, cold works tool steel, hot works tools steel, plastic mold steel, engineering steel and machine structural steel, etc.

After almost 20 years of development and growth, Otai Steel becomes one comprehensive special steel factory, stockist and exporter. If you want to know more about us, please feel free to connect with me.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

H13 application –chapter 10

heat treatment of H13 steels are decarburization, superheating, And also make the mold surface gets residual tensile stress. H13 steel will make the mold get failure early. If the temperature of H13 steel some parts of grinding surface up to over 800℃, and not make it cool fully. Then the material of the surface layer will be re-austenize.

1. And quenching into martensite. So the surface layer of the die for H13 steel  will get high stress. At the same time, that H13 STEEL  will make the possibility of getting grinding crack be higher. The technology of heat treatment Taking the heat treatment in the right way will make the mold get what it needs about the properties and raise the time of working. But if do h13 steel  in the wrong way, it will cause the defects of heat treatment. H13 steel will harm hugely to its load capacity. The defects of hdehiscence, strength is not enough and etc. After a period of time of use, the internal stress accumulates to a damage level. It must do a work of strain relief tempering. If not, it will dehiscence during work time.

The use and care of H13 steel die

1. The preheat of steel mold H13 steel has high content alloy elements and its thermal conductivity is bad. So it must fully preheat before the use. The temperature of preheating too high, then the temperature of the mold will be higher during the work. And its strength will get down, it will easy to get plastic deformation then make the surface subsides. However, if the temperature of the preheating is too low, the temperature of the surface has a big change. With high heat stress, get the crackle is more easily. The temperature of preheating for H13 steel mold is at the range of 250-300℃.
3. H13 steel that can reduce the temperature difference between the mold and the forgeable piece to avoid excessive thermal stress on the surface of the mold, and effectively avoid the plastic deformation of the mold surface.

WhatsApp: +86-769-23190193

Tel: +86-769-23190193

Fax: +86-769-88705839

Email: Jack@otaisteel.com

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42CrMo4 material for FaceMask Machine . In the the beginning of  this year 2020 , China have affected by a novel coronavirus , and for now we still stay in the office and wearing with facemask . Hundreds of millions of masks are consumed every day . The most busy factory was Mask manufacturers . And our factory provide 42CrMo4 Hot Rolled Steel for FaceMask Machine . We are the First batch of manufacturers allowed to resume work in China .

And What makes us sad is that the novel coronavirus  have been outbreaks in South Korea and Japan recently . This means more demand for masks . More demand of mask machine , and most demand of 42CrMo4 Hot Rolled Steel raw materials .

OTAI Special Steel provide 42CrMo4 material for FaceMask Machine . And we have more than 16 years provide special steel raw materials export experience to abroad .  42CrMo4 material is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components . Like axles, shafts, bolts, gears and other applications .

Similar to alloy grade AISI 4130 chrome moly alloy steel but with a slightly higher carbon content . The higher carbon content of 42CrMo4 material gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steels . However it does have inferior weldability characteristics.

42CrMo4 material steel bar, flat or plate material can be used for as wide variety of applications where greater toughness and wear resistance is needed over lower carbon grades . Typical applications for 42CrMo4 tool Steel uses include Components, Adapters, Arbors,strippers, holder blocks, mold bases, ejectors . Back up and support tooling, fixtures, jigs, molds, cams, drill collars, Axle Shafts, Bolts, Crankshafts,stubs . Couplings, reamer bodies, axles, shafting, piston rods, rams, hydraulic machinery shafts, gears.

Sprockets, gear racks, chain links, spindles, tool bodies, tool holders, tie rods, Connection Rods, Chuck Bodies . Collets, Conveyor Pins & Rolls, Ejector Pins, Forks, Gears, Guide Rods, Hydraulic Shafts & Parts,Lathe Spindles, Logging Parts . Milling Spindles, Motor Shafts, Nuts, Pinch Bars, Pinions, Pump Shafts,boring bars,tracks, slides . Wear strips or parts, forming dies, brake dies, trim dies, bolsters, machinery parts and components, etc.

Any inquiry with 42CrMo4 material for FaceMask Machine , please feel free to contact with us directly , thanks !

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

Have you found that 1.2344 Round Bar for aluminum extrusion in different price?Of course I have.

Have you found that 1.2344 Round Bar for aluminum extrusion in different price?

Of course,even though same company,they also have different level suppliers,such as the ordinary level,ordinary level with ESR,Quality factory level,Quality factory level, with ESR,supreme level with ESR& low harmful impurity，especial the last one-supreme level with ESR& low harmful impurity,the quality could be the double the aluminum extrusion production.that is why their price also double,someone might think,that means their nothing competitive,we could but the cheapest one,that means the aluminum extrusion production is same.Please don’t forget a very important point,the aluminum extrusion work 24 hours 7 days,as they will lost cost once their stop,and once they need to change a mould for aluminum extrusion,which is made of 1.2344 Round Bar,they have to stop,that they will pay more fee for the power.but if they use the supreme level with ESR& low harmful impurity,they could save more cost.

I prepare base information of 1.2344 Round Bar for aluminum extrusion as below ,or you are welcome to contact me to discuss more about it.

Chemical composition

Applications

1.2344 Tool Steel is used in die casting dies for aluminium, magnesium and zinc, extrusion dies for aluminium and brass, liners, mandrels, pressure pads, followers, bolsters, die cases, die holders and adaptor rings for copper and brass extrusion. It is also for plastic moulds, shear blades for hot work and hot swaging dies. 1.2344 is also used in the production of hot stamping and press forge dies, split hot heading dies, gripper dies, hot punching, piercing and trimming tools.

Processing

1.2344 tool steel round bar and flat sections can be cut to your required sizes. 1.2344 ground steel bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. 1.2344 Tool Steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.

Ms Sharon Wan

Mobile/WhatsApp: 0086-13580960968

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Sharon@otaisteel.com

What does the epidemic mean for the 42crmo4 steel plate trade? Challenge or chance?

The popular issue people talk about is whether the epidemic will affect the development of economic .the report about this question is covered in the news .without doubt, it indeed causes a lot of trouble for everyone’s life. the festival should be a chance for tourism, traveling, cousin and so on. However, with the outbreak of coronavirus, everything changed, people have to stay at home. The company delays the working date, the school delay the study date. What does the epidemic mean for42crmo steel plate trade? Challenge or chance?    maybe it is a chance more than the obstacle.

At first, I  think the epidemic will affect the 42crmo steel plate trade. I am a little worry about it .however, it stimulates the development of  42CRMO4 steel plate trade. Our colleagues in the factory are busily delivering the 414o steel .because the steel is related to our life even during the time of the epidemic, such as making the mask.

The epidemic affects the steel industry, let’s share the statistics together.

china’s crude steel production

China’s crude steel production for January 2020 was 84.3 Mt, an increase of 7.2% compared to January 2019*. India produced 9.3 Mt of crude steel in January 2020, down 3.2% on January 2019. Japan produced 8.2 Mt of crude steel in January 2020, down 1.3% on January 2019. South Korea’s crude steel production was 5.8 Mt in January 2020, a decrease of 8.0% on January 2019.

In the EU, Italy produced 1.9 Mt of crude steel in January 2020, down by 4.9% on January 2019. France produced 1.3 Mt of crude steel in January 2020, a 4.5% increase compared to January 2019.The US produced 7.7 Mt of crude steel in January 2020, an increase of 2.5% compared to January 2019.Brazil’s crude steel production for January 2020 was 2.7 Mt, down by 11.1% on January 2019.Turkey’s crude steel production for January 2020 was 3.0 Mt, up by 17.3% on January 2019.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

Although the disease obstacle our daily life ,but it can affect the relationship of people with people. Thank you for the reliability to aotai company.p20 steel round bar is  still one of the best-seller product in our company in 2020.

To eliminate the coronavirus, my company delayed the date of working time, finally, we can work from Monday this week. The long time stuck at home was a really hard time for us, we can’t walk out freely to keep healthy. During the vocation, I open the company email and received many emails from our clients .p20 steel round bar is one of the best-seller products in our company. I received a lot of inquiries about the p20 steel round bar.

We have a client in Bangladesh who wants to buy the p20 steel round bar from our company to make a mold machine. he bought the steel from our company in 2019. Although the disease obstacle our daily life, but it can’t affect the relationship of people with people. Thank you for your reliability to aotai company.

Why does our client repeat the order to our company? What’s the P20 steel round bar? It is commonly used for plastic injection mold cavities and tooling and die casting dies for zinc. P20 is typically sold in the pre-hardened condition at a hardness of approximately 300 HBW.

Application

1 It applies to plastic molds and mold holders for TV front cases, telephones, water dispensers, vacuum cleaners, etc.

2 Thermoplastic injection mold, extrusion mold. 

3 Thermoplastic blow mold.

4 Heavy load mold main parts.

5 Grate cold structural parts. Commonly used in the manufacture of TV casings, washing machines, refrigerator inner casings, buckets, etc.

There are three kinds of thickness you can choose as you want about the P20 Steel round bar, we show the details as follows,20-120mm, 130-150mm, and 155-180mm. I have good news to share with you, we have cooperation with the famous steel mill in china, so the quality is assured. Also, MOQ is not limited at a suitable price. We have a large of material steel in storage, so it’s convenient for you to place an order.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com