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

Why the 4140 plate for mask machine ultrasonic is necessary?

Why the 4140 plate for mask machine ultrasonic is necessary?

Since the coronavirus is under control,we start business,like I said before,the 4140 plate is sold a lot and very quickly,as the 4140 plate for mask machine ultrasonic,to produce medical ear-loop face masks with nonwoven materials.

I discussed an 4140 plate order of 175 tons,it just discuss 1 days ago,and my customer sign the contract and make a payment,however,when the payment is reach,I intend to arrange shipment,the warehouse told me that all thickness of thickness 35-40-45mm are sold out,a factory who produce mask machine ultrasonic need it urgently,we know the market demand a lot of mask,but now,the situation is demand exceed supply,every one are waiting more mask in market.it need more factory to manufacture face mask,but the factory need more machine increase the productivity,so now,most of the factory ask for the 4140 plate 35-40-45mm,and some of them had pay already,but these specification is scarcity.

Now,let’s check the most popular steel in 2020 as below.

Applications

DIN 4140 Tool steel is a alloy structural steel, 4140 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

Forming

AISI 4140 alloy steel has high ductility. It can be formed using conventional techniques in the annealed condition. It requires more pressure or force for forming because it is tougher than plain carbon steels.

Welding
AISI 4140 alloy steel can be welded using all conventional techniques. However, the mechanical properties of this steel will be affected if it is welded in the heat treated condition, and post weld heat treatment should be performed.

AISI 4140 equivalent material

• ♦JAPAN♦ : JIS SCM440 alloy steel
• ♦GERMANY♦ : DIN WN-r 1.7255 / 42CrMo4 steel alloy
• ♦CHINA♦ :  GB 42CrMo steel
• ♦BRITISH♦ : BS 708M40

Ms Sharon Wan

Mobile/WhatsApp: 0086-13580960968

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Sharon@otaisteel.com

H13 application –Chapter 9

• The design of the die-H13 steel 

The design of mold for H13 steel  depends on the shapes and specification of products to make sure the size of the die. That was good for the strength of dieto H13 steel .

Furthermore, too small radius of rounded corner, ill-suited groove position and etc will make the die gets big pressure during the heat treatment. That is easy to cause crackle. So must make the taper angle, hole and etc at the right position in the mold H13 steel .

• Production technique

1. Forging ProcessThere are so many alloy elements in H13 steel. The resistance of deformation is big at the time of forging. And the thermal conductivity of the material is bad. So the eutectic temperature is low. That is easy to burn. So preheated temperature range must be at 800-900℃. Then heated to the initial forging temperature of 1065-1175℃. In order to crush large non-metallic inclusions and make the carbide get small, the forging ratio needs to be bigger than four. At the cooling process after forging, it is possible to get quenching crack. And the core is easy to get transverse cracks. So H13 steel must be slowly cooled after the forging.  The machining of cutting The roughness of the surface after the machining of cutting, which has a large impact on the thermal fatigue property of steel mold. The roughness of the steel mold surface must be lower. The knife mark and cullet cut are not supposed at here. Those shortages will cause pressure over control to make the thermal fatigue crack. So, must pay attention to handle these things in the mold at the time of processing. 3. The machining of grinding  for H13 steel  will be better .
2. At the process of grinding, the generation of heat by friction at the parts which is easy to cause the problems of crack, empyrosis and etc.

WhatsApp: +86-769-23190193

Tel: +86-769-23190193

Fax: +86-769-88705839

Email: Jack@otaisteel.com

Which kind of steel would be the best sold in 2020?I guess should be 4140 plate,

4140 plate for mask machine,

Which kind of steel would be the best sold in 2020?I guess should be 4140 plate,Cause the coronavirus is very heavy in China at the beginning of 2020,and it seems it had spread to other countries,such as Japan and South Korea,Italy etc.

Each countries are demand for face mask badly,and now,more and more factory demand for the mask machine,as the Chinese steel market had been shut down, for almost a month,there is no raw material for producing the machine,once the market resume,For making face mask machinea,lot of factory are ordering the 4140 plate steel,when the mask machine is done,there will be enough face mask for defending the desease.

Let’s check the information of 4140 plate for mask machine.

AISI 4140 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 AISI 4140 alloy steel.

4140 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.4140 Annealing delivery hardenss less than 250HB.

Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077

 4140 alloy steel Chemical composition

 Applications

DIN 4140 Tool steel is a alloy structural steel, 4140 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

Ms Sharon Wan

Mobile/WhatsApp: 0086-13580960968

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Sharon@otaisteel.com

Did the steel market effect by the coronavirus?of course it’s,Imagine there 14 billion people are stuck at home

Did the steel market effect by the coronavirus?

Of course it’s.The economic effect alot by coronavirus,especial cause by the industrial.Imagining there 14 billion people are stuck at home to fight for the coronavirus,all the business was stop,actually it’s not only effect the Chinese steel market,the coronavirus also effect the market all over the world.Let’s check some news from The economic news

Near-panic over a spreading coronavirus, sheared more than 1,000 points off the Dow Jones Industrial Average DJIA,-3.15% on Monday, with more and more companies having followed in Apple’s AAPL, -3.39% footsteps ,by warning of lower sales and supply disruptions that could cause even more damage in the next few months.

Just a few weeks ago, from the viral outbreak in China,most economic forecasters were predicting a small impact . Since then the virus has made its way to South Korea, Italy and other countries, raising the prospect that it will spread worldwide.

The U.S. economy has been shielded from direct impacts of the virus, but the side effects are becoming more evident each day. Declining travel. Fewer foreign tourists. Supply bottlenecks for automobile makers and tech companies. The closure in China of popular American retail chain stores such as Starbucks SBUX, -2.76% and McDonald’s MCD, -0.67% . And so on.

Goldman Sachs on Monday raised its estimate,the economic damage to the U.S. for the third time in as many weeks. The bank now predicts the virus will shave eight-tenths,that a percentage point from U.S. growth in the first quarter — double its original estimate. That’s a fairly big chunk of growth.

But I don’t think we need to too anxious,as the Chinese steel factory is going to resume,that meas the mould & engineering business is going to start working,once the industrail is resume,The economy will recover soon.

Ms Sharon Wan

Mobile/WhatsApp: 0086-13580960968

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Sharon@otaisteel.com

In 2020 , we prepare 42CrMo4 Round Bar Hot Rolled Export to abroad almost with 3000Tons . With any shape in sheet plate and round bar and flat bar and square bar and other request by customer . After long time holiday Chinese Spring Festival , this is our first week to come back to work in the office . Thanks for all the regular customer’s concern . We are safe and healthy very well . All the people here are fine , Wuhan is OK now , and China also very well now .

As all the client know that China have outbreak New coronavirus pneumonia , this is truth . But the main epidemic situation is only in Wuhan , which is under control . The government is actively taking many measures to deal with it . Other cities have little impact . And now are have come back to working with facemasks , please believe that it have to be restored already .

From here , we will work like before .  We have more 16 years experience in 42CrMo4 Round Bar Hot Rolled , steel plate, flat bar, square supply. 42CrMo4 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 42CrMo4  alloy steel.

42CrMo4  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. 42CrMo4  Annealing delivery hardenss less than 250HB.

42CrMo4 Round Bar Hot Rolled Export and flat sections can be cut to your required sizes. 42CrMo4 tool steel ground bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. SAE 4140 steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.

With all the conditions , we believe that 42CrMo4 Round Bar Hot Rolled Export to other country in 3000Tons was a piece of cake .

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

I heard the 42crmo4(thicknesss40-50mm) were sold out by the mask factory,it’s really shock me.

I heard the 42crmo4(thicknesss40-50mm) were sold out by the mask factory,it’s really shock me!

As the chinese epidemic situation,our company had shut down for a month,that could make sure all workers are safe and clean. Today is our first working day after the coronavirus epidemic,I ask the 42crmo4 stock list from warehouse,and they told me that thicknesss40-50mm is out,as 42crmo4 was sold out by the mask factory,I was so curious why mask factory,I don’t think it need steel to make mask.and then they told me is not for making mask,it’s for machine which produce mask.and it’s push by government everyday. And our cutting factory is very busy with it.as our factory is the biggest 42crmo4 stoickist in south of China. I think it’s so meaningful,it not only prove our qulity is good for government project,but also we can do some good thing for our country. Now,we prefer to send all 42crmo4 to mask factory,we hope the it’s very helpful for our country.

If you want to know more about 42CrMo4，please check as below or contact me directly.

Equivalent Of 42CrMo4 alloy Structure Steel

Heat Treatment

42CrMo4 alloy steel is heated at 845°C (1550°F) followed by quenching in oil. Before hardening, it can be normalized by heating at 913°C (1675°F) for a long period of time followed by air cooling.

Forging

Forging of this steel should be carried out between 2200 and 1650 º F (1200 and 900 º C). The lower the finishing temperature from forging, the finer will be the grain size. This alloy should ideally not be forged below 1650 º F (900 º C) and should be slow cooled after forging.

Hot Working

42CrMo4 alloy steel can be hot worked at 816 to 1038°C (1500 to 1900°F)

Annealing

42CrMo4 alloy steel is annealed at 872°C (1600°F) followed by slowly cooling in the furnace.

Tempering

42CrMo4 alloy steel can be tempered at 205 to 649°C (400 to 1200°F) depending upon the desired hardness level. The hardness of the steel can be increased if it has a lower tempering temperature. For example, the tensile strength of 225 ksi cab be achieved by tempering at 316°C (600°F), and tensile strength of 130 ksi can be achieved by tempering at 538°C (1000°F).

Hardening

42CrMo4 alloy steel can be hardened by cold working, or heating and quenching.

Ms Sharon Wan

Mobile/WhatsApp: 0086-13580960968

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Sharon@otaisteel.com

Aisi 4140 plate pre-hardened, otai provides the material for  the mask factory.

Ending  the long spring festival vocation, finally comes the working day. It is a really good news for Chinese people ,because everthing turns to be smooth. Maybe everyone knows the outbreak of New coronavirus pneumonia in china. However ,under the cooperation of Chinese ,the disease is under-control now . all members of our Otai  steel devote to have a deep cooperation with all of  our clients at 2020. Aisi 4140 plate pre-hard ,otai has rich storage. Welcome to call us .

Although the New coronavirus pneumonia makes troubles to our daily life ,it also spreads  to the other country. However , with the unity of every Chinese, I believe the disease will  be disappered like the mist. nowadays ,we keep the office clean, and wear the mask everyday. I believe when the spring comes ,everything will be better.

To  cooperate with the policy of the government, many clients who are making the mask, send us the order of Aisi 4140 plate pre-hard, we are proud of our job because it makes us contribute to the country.

American standard 4140 pre-hardened sheet 12-120mm; can open as your specifications;42CrMo hot-rolled plate 12-185mm can be cut into your specifications, smooth plate finishing.42CrMo / 4140 forging bar 300-500.We guarantee the uniform in hardness. Aotai promises to be responsible for every single shipment to the end, without tangling responsibilities, and solving customer problems as soon as possible.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com