Category Archives: Blog

Today, there is a 42crmo4 steel plates inquiry from UAE. During the communication with the customer, I talked about some characteristics of 42crmo4 steel. I was often asked if the DIN 42crmo4 is a material. I will explain it to you today.

42CrMO4 steel plates belong to European standard alloy structural steel, with high strength, high hardenability, good toughness, small deformation during quenching, and high creep and durable strength at high temperature. It is characterized by good machinability, easy polishing, easy to bite flowers. 42CrMo4 can be used for manufacturing locomotive traction gear, supercharger drive gear, rear axle, maximum load connecting rod and spring clip, 42CrMo4 can also be used for oil deep well pipe joints and fishing tool below 2000m.

Otai is the largest wholesaler of 42CrMO4 Steel plate in South China. We have sufficient stock of 800 tons and materials of different specifications for customers to transfer goods at any time. Our stock status of 42CrMO4 is hot rolled and Forging without machining. For 42CrMO4 Steel plates, the general customer does not need machining, we can guarantee the delivery within 7 days, just because we have enough different specifications of the superior conditions of inventory, Otai has now become a large wholesaler in many countries in China for free inventory, with the delivery, is our purpose to serve customers.4. Otai guarantees high quality. For 42CrMO4, customers who have cooperated with us can return orders up to 80%.

2 hours after-sale response, 2 days earlier than expected, hard for competitors to do this.

EN19 Steel | 4140 | 1.7225 | SCM440 | 42CrMo4

4340 Round bar Annealled  is a alloy structural steel . 4340 is used for engineering structural . Normally used as require good toughness , high strength , as well as the important conditioning of large size . Heavy machinery such as high load of axial , turbine shaft, larger than 250 mm in diameter of helicopter rotor shaft . Turbojet engine turbine shaft , blade , high load of transmission parts , fasteners of the crankshaft . Gear, etc.;

Can also be used for operating temperature over 400 ℃ of rotor shaft and blade, etc. .  And after nitriding processing can also be used to make special performance requirements of the important parts . After low temperature tempering or can be used for ultra-high strength steel after is othermal quenching .

OTAI SPECIAL STEEL is ASTM 4340 Round bar Annealled stockholders and suppliers from china . We have more than 16 years experience in 4340 round bar Annealled , plate , steel flat bar , square supply .

4340 is a high quality Quenched and Tempered Alloy Structural steel .  It belong to the high quality medium carbon .  Oil Quenched & Tempered Hardenss is 28-34 HRc . 4340 Annealing delivery hardenss less than 250HB .

4340 steel properties is very similar with GB 40CrNiMo steel . JIS SNCM439 and DIN 1.6511 36CrNiMo4 Alloy structural steel . At most work environment , 4340 is equivalent with 40CrNiMo, 1.6511 36CrNiMo4, SNCM439 steel .

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

8620 Alloy Steel Export to south American . Otai Special Steel have export experience for alloy steel more than 16 years . We have specialized in provide high speed steel , tool steel and …. . Any steel with plate and round bar , flat bar …… . Any size for original from Mill factory and special size for customized . Otai Special Steel could satisfied you .

AISI 8620 Alloy steel export is widely used for a variety of applications in the used in the automotive and engineering industries for toolholders and other such components. Typical applications such as valve bodies, pumps and fittings, Shaft, the high load of wheel, bolts, double-headed bolts, gears, etc

8620 Alloy steel export to all over the world . For this thing , Otai Special Steel have done for more than 16 years . And when last time a customer from Argentina have contacted with us . He only need 5Tons 8620 Alloy steel round bar . And for the delivery fees and so less quantities , it is difficult to import from us . So we suggest he to consult with our regular customer from this period .

Our regualr customer from south american was a big steel stockholder . He sells many kinds of steel . Alloy steel 4140 , tool steel 8620/4340 /D2, high speed steel M2 /T1 . The new inquiry customer found our agent . They have reached a agreement . Finally they have ordered one full container to us , and the new customer have got his quantities , and our agent make more stocklist .

In Otai Special Steel , we often meeting this situation , and solve the problems for our regular customer also for new potential customer . We not only sell steel . We could provide the steel end use best suggestion . Any problem with steel could found us , and we will give our best support to solve your problems .

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

18CrNiMo7-6 Round bar Supplier – Otai Special Steel . We have export 18CrNiMo7-6 Round bar steel experience more than 16 years . The regular size for this material store in our warehouse for more than 200Tons . The normal delivery condition was hot rolled , black surface , annealled . Other special request could be arrived by place order . Adequate inventory but competitive price , no other supplier could be compare with us .

18CrNiMo7-6 Round bar steel is widely used for a variety of applications in the automotive and engineering industries . For toolholders and other such components . Typical applications such as valve bodies , pumps and fittings , Shaft . The high load of wheel, bolts, double-headed bolts, gears, etc .

Last week , my customer from Turkey send me inquiry about this materials . And all the size have stock in our warehouse , but customer require cold drawn , bright surface , Q+T delivery conditions . This is different from our stocklist . And we have confirm with customer about the end use way . We discuss with each other to find the best delivery condition to save cost and suitable for their end use .

Finally , we decide to provide 18CrNiMo7-6 Round bar cold drawn , rough peeled , Q+T . All this match with customer’s request . And the tolerance also meeting customer’s end use . Customer also accept our suggestion , the production may process in our factory from black surface to bright surface .

In Otai Special Steel , you could found what is you want , and everything is possible . Alloy steel , high speed steel , cold tool steel , hot tool steel , mould steel …….

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

If you want to buy 4340 steel, it is very necessary to buy it from the supplier with good reputation. It can make you without any worry on the quality and service.Our OTAI steel quality is accredited by the Thyssenkrupp, we supply the steel material to them in a long term business.

From June, for supporting our customers friends, our company have the SPECIAL OFFER on some steel grade, it is including buy 4340 steel. In fact, recently, even if some customers are still in quarantined, but their steel business never stop. And from some country, we got the news from them. The Government will raise taxes significantly in a few months time. It is to start to recover the large amounts money they have given to the population and businesses during the pandemic. So the importing taxes in the coming months will be much higher for them. Some of customers for saving on the taxes, they made the purchasing plan in advance.

And as the government advise, recently, the additional tariff taxes will be increased. It is for reducing the negative impact of the new epidemic on the national economy. And it is for protecting the import pressure facing the domestic industry. But in fact the truth is for recovering the large amounts money the government gave to the people during the pandemic. Even it is true that the money is taken from people, and it is used on people. Nowadays, there will be a large amount of people made redundant over the coming months. Especially on this difficult time, may the most important thing the government need to do is how to overcome the difficulties together. Increased the taxes at this moment, it seems that make them more difficult.

And OTAI do wish that we could go through this special difficult time together, in June, our company make the SPECIAL OFFER on buy 4340 steel and other steel grades. Hope everything will be getting better and better for all the customer friends.

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

4140 Plate Q+T hot rolled ,  black surface original board , provided by Otai Special Steel . In South China , there are many suppliers of 4140 plate Q+T steel . But to ensure the safety of the supply , complete size, high-quality large-scale 4140 plate supplier-Otai special steel is the only one .  All of our steel comes from Baosteel . We are the first-level agency agreement supplier of Baosteel .

The 4140 plate Q+T inventory of our warehouse reaching more than 500 tons every month . Any size of 4140 plate produced by Baosteel, our warehouse has the size of the inventory . The inventory is replenished every month , and the goods are constantly being stocked . Although our goods are high-quality products from Baosteel . But the price are very competitive from the Chinese steel market .

In 2018 , a customer send us inquiry about 4140 plate Q+T , with a size ranging from 20-120MM . More of 10 different size . Our sales learned that customers also send the inquiry to  other two Dongguan foreign trade supplier and Hunan steel factory . However, according to our understanding of the market , other suppliers have some sheet thickness out of stock . And they cannot supply sheets of some not commonly used size . This customer was importing from China for the first time . Although we told the customer this fact after the quotation , the customer still insisted on taking the goods from another trader at a low price . Although the business was not completed this time , our person has not disconnected from customers . And she has always communicated market information and shared resources with customers .

A few months later, one day the customer took the initiative to find our sales and informed she that he was deceived . The size of the goods received does not match at all , resulting in no way to use the end product . In the end, this customer asked us to place an order for inquiry again and has been reversing the order until now. Customers also trust us. Knowing that we know the Chinese steel market of 4140 plate Q+T very well , we often share information and resources with us for win-win cooperation .

Otai special steel guarantees that the supply of 4140 plates will be constantly available , with the most complete size and the most affordable price . You could trust us very well . We never provide the unreliable information to our customer .

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

Regarding 4140 plate stock, OTAI maintains a daily inventory of 1,000 tons, and the inventory size is multiple. We are the largest stockist in South China. We can provide customers with large slabs, or cut them into strips according to the customer’s size requirements. And we can also do milled or turned bright surface from the 4140 plate stock. After 21 years of professional pre-sales and after-sales service, our company has received accredited quality recognition from the majority of overseas customers. And the customer placed the repeat order over 85% from our 4140 plate stock.

In fact, there are so many steel suppliers in China, and the different quality of each has led to different price levels. The quality produced by large steel mills and small steel mills is completely different. Because it is a raw material for steel, it is difficult to distinguish from the appearance alone. Only when it is really applied to the product will quality problems be discovered. Last year, many small steel mills stopped production due to production problems and the production of fake and inferior products. Some overseas customers don’t understand China’s situation is more likely to step in the pit if only focus on cheap prices.

Customer Story

There was a customer in Latin America last week. We took the initiative to contact them through the website. We learned from the conversation that the customer had bought 4140 plate stock in China before. But since he was deceived by that supplier once, he never wanted to buy it from China. He was really bitten by a snake, and he was afraid of the rope for ten years. Seeing that the guests are deceived, I really feel so sad. If he bought from us who is reliable and with a good reputation, he will avoid this happened.

Although we have no way to ask some of our other suppliers, everyone must abide by the rules of business ethics. And everyone must compete benignly, not to disrupt the situation that disrupts the market. But the only thing we OTAI can do is to do ourselves well. We need to insist on the attitude of being responsible to customers and maintain the company’s good reputation. And continue to develop with quality as the primary task for long-term development. So during these 21 years, thanks to all the customer’s friends who have accompanied us along the way. Thank you for your trust and support. OTAI will return to everyone with quality and the best service!

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

Otai  4140 steel plates stocks and keeps an annual inventory of 800 tons which is hard for competitors.

All year round, Otai can guarantee our 4140 steel plates stocks is more than 800 tons. Different thickness and length can be customized. After placing an order, shipment can be arranged immediately. Otai has a large stock of round bars and original plates at competitive prices throughout the year. Otai ’s 4140 steel keeps various and complete specifications and speedy delivery.

For the purchase of 4140 steel plates, foreign buyers often complain that the actual delivery time of suppliers is very long. In order to get orders, most domestic suppliers will give customers a very short delivery time. But in fact, they do not prepare so much inventory, so they need to transfer goods from other suppliers. This process makes the delivery time longer and longer. But for us, Otai, we can achieve our 4140 steel plates stocks more than 800 tons and deliver the goods as soon as possible.

Customer’s story

We would like to share a real case of our customer with you. David from Brazil asked us about 4140 steel plates with a thickness requirement of 100mm. After he received our quotation, he was satisfied with the price. But he doubted our delivery time was 7 days so he didn’t place the order at first. After talking with David, he said that the previous supplier would only deliver the goods in about 30 days, so he didn’t believe that we could deliver the goods in 7 days. In order to eliminate his concerns, we went to our warehouse to take videos and photos for him, as the real proof of speedy delivery. After that, David place the order no hesitation. Finally, he is also very satisfied with our goods.

Otai exports various tool steel and alloy to more than 30 countries from Europe and America, Middle East and Asia. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards.

Otai 4140 steel plates, 2 hours after-sale response, 2 days earlier than expected.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

OTAI is the largest stockist for the 42CrMo4 flat bar in south of China. We keep daily 800-1000Tons daily stock in our warehouse.

During in April and May, the mask molds made by using the 42CrMo4 flat bar were largely demand. Some steel suppliers increased the cost for this steel price heavily because of the shorted material. We kept the most complete size material stock for this item. But for our all customers, no matter domestic and abroad, we still keep our reasonable price for supporting our customer. During this period, our company was for supporting the anti-virus work, we made the SPECIAL OFFER for the 42CrMo4 flat bar.

It is extremely sad that the virus still is spreading all over the world. And especially for some countries, the infected cases number is heavily increasing. Some overseas customers may ask us the question. They got the news from internet, this virus was origin in China Wuhan market? And someone even called it “ China virus”. Someone questioned that is the virus made by the Wuhan Lab and released accidentally?

As a Chinese, I think I have to share some info to those overseas friends who are with the Pride and Prejudice to our China. To those whom to spread rumors on the internet.First, the spread of the new coronavirus could not have originated from the Wuhan laboratory, because the laboratory samples did not match the new coronavirus completely.

The place where the earliest case was reported in Wuhan is not mean that the source of the virus. The before so-called “Spanish flu”, which was a global pandemic. It was first reported in Spain, but it actually spread throughout the United States, Europe and other places.Large-scale influenza began in the United States in September 2019. At that time, many people died, but some ‘influenza’ deceased may actually be infected by new coronavirus.The 95% probability of the first case of the virus being infected occurred between in September and December early, 2019. The outbreak occurred in Wuhan, China, in January 2020. And in October 2019, the Global Military Games were held in Wuhan. And all military athletes from all over the world all gathered in Wuhan for the games.

So in the end, which country does this virus come from originally? I think time and scientists will make the most accurate judgment after research and detail analysis. Some info may not completed from the internet, especially the people from internet may spread the wrong and misunderstood info. Sometimes it might be happened not only among the different countries but also ourselves domestic. Consequently, when we are facing this difficult time, all of us have to fight with against fear, uncertainty, doubts and rumors. OTAI is always with you together at this dark time, the dawn of victory will be coming soon.

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com