Category Archives: Blog

How time flies, now it is the last month of this year. Sometimes I feel that we just started to work in this year, but suddenly the end of year is coming. But OTAI who mainly supply the 4140 steel flat bar hope that this unlucky year could be ended soon. So that we could have a new, lucky, happy and healthy year in 2021.

Our OTAI mainly supply the tool steel, alloy steel and high speed steel for more than 21years. We keep daily more than 1200Tons especially for the 4140 steel grade. There are some customers buy the 4140 steel plates directly, and the width is ranged in 2000-2300mm. But the original length from the mill is 6000-12000mm, for fitting the 20GP container, we will help to cut it less than 5800mm.And some customers may ask us to cut it as their request size flat bar.

Professionally, our company will cut it into 4140 steel flat bar by using the saw cutting.

Here we have the warm tips for those customers cut flat bar by themselves.The 4140 steel flat bar could not be cutting in fire cutting. That is because when make the fire cutting, the temperature is about 1000 degree. During proceed the cutting edge, this high temperature is meaning on making the quenching, it will make the hardness harder. What is more, it will affect the cutting part even make it crack.

By the way, we are sharing here for the difference between the saw cutting and fire cutting.Fire cutting:  The cutting price is much cheaper than the saw cutting, and the speed is fast, but the wastage is very big. Saw cutting: The price is higher than the fire cutting, the speed is slower, but the wastage is very small.

So we did not just focus our eyes on the price, the most important thing is the quality assurance. OTAI Special steel undertakes the quality as a crucial company strategy. Taking on an open, transparent and sincere attitude, OTAI is willing to work with all customers and partners to jointly supply top quality tool steel everywhere.

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

With over 20 years’ pre-sales and after-sales special steel, Otai helps distributors and end-users to avoid all possible swindle and cheat. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Otai’s 34CrNiMo6 steel plate for sale: we keep a daily inventory of 1000 tons which is hard for competitors.

34CrNiMo6 steel: As engineering steel, it commonly makes it to Quenching and Tempered, Annealing, Normalizing, and other heat treatment.

34CrNiMo6 / 1.6582 Steel used in the manufacture of tools for good plasticity and high strength. Usually choose a big size and important part, such as heavy machinery axle shaft, turbine blades and the high load of transmission parts. Including fasteners, crankshaft, gear, as well as loading parts of the motor construction, and so on.

34CrNiMo6 annealed plates’ inquiry from Brazil

We would like to share a real case of our customer with you. John from Brazil sent us an inquiry for the 34CrNiMo6 steel plate for sale. Due to the impact of COVID-19, ocean freight has skyrocketed. The customer did not want to place an order for a long time and hoped that the sea freight would be cheaper in the future. But in fact, ocean freight is getting more expensive day by day, and ocean freight has tripled within a month. Here we suggest that if there is a demand for steel, please contact us for purchase as soon as possible, so as not to affect your purchase budget due to excessive shipping costs.

8 consecutive years no quality event complain, over 80% repeat order rate. Otai undertakes every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.

With over 20 years’ pre-sales and after-sales special steel, Otai helps distributors and end-users to avoid all possible swindle and cheat. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Otai’s 34CrNiMo6 annealed plates: we keep a daily inventory of 1000 tons which is hard for competitors.

34CrNiMo6 annealed plates: As engineering steel, it commonly makes it to Quenching and Tempered, Annealing, Normalizing, and other heat treatment.

34CrNiMo6 / 1.6582 Steel used in the manufacture of tools for good plasticity and high strength. Usually choose a big size and important part, such as heavy machinery axle shaft, turbine blades and the high load of transmission parts. Including fasteners, crankshaft, gear, as well as loading parts of the motor construction, and so on.

34CrNiMo6 annealed plates’ inquiry from Brazil

We would like to share a real case of our customer with you. John from Brazil sent us an inquiry for 34CrNiMo6 steel plates. Due to the impact of COVID-19, ocean freight has skyrocketed. The customer did not want to place an order for a long time and hoped that the sea freight would be cheaper in the future. But in fact, ocean freight is getting more expensive day by day, and ocean freight has tripled within a month. Here we suggest that if there is a demand for steel, please contact us for purchase as soon as possible, so as not to affect your purchase budget due to excessive shipping costs.

8 consecutive years no quality event complain, over 80% repeat order rate. Otai undertakes every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.

With over 20 years’ pre-sales and after-sales special steel, Otai helps distributors and end-users to avoid all possible swindle and cheat. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Otai’s 34CrNiMo6 hot rolled bars: we keep a daily inventory of 1000 tons which is hard for competitors.

34CrNiMo6 hot rolled bars: As engineering steel, it commonly makes it to Quenching and Tempered, Annealing, Normalizing, and other heat treatment.

34CrNiMo6 / 1.6582 Steel used in the manufacture of tools for good plasticity and high strength. Usually choose a big size and important part, such as heavy machinery axle shaft, turbine blades and the high load of transmission parts. Including fasteners, crankshaft, gear, as well as loading parts of the motor construction, and so on.

34CrNiMo6 hot rolled bars’ inquiry from Chile

We would like to share a real case of our customer with you. Davey from Chile sent us an inquiry for 34CrNiMo6 steel plates. Due to the impact of COVID-19, ocean freight has skyrocketed. The customer did not want to place an order for a long time and hoped that the sea freight would be cheaper in the future. But in fact, ocean freight is getting more expensive day by day, and ocean freight has tripled within a month. Here we suggest that if there is a demand for steel, please contact us for purchase as soon as possible, so as not to affect your purchase budget due to excessive shipping costs.

8 consecutive years no quality event complain, over 80% repeat order rate. Otai undertakes every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.

With over 20 years’ pre-sales and after-sales special steel, Otai helps distributors and end-users to avoid all possible swindle and cheat. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Otai’s 34CrNiMo6 pre hard bars: we keep a daily inventory of 1000 tons which is hard for competitors.

34CrNiMo6 pre hard bars: As engineering steel, it commonly makes it to Quenching and Tempered, Annealing, Normalizing, and other heat treatment.

34CrNiMo6 / 1.6582 Steel used in the manufacture of tools for good plasticity and high strength. Usually choose a big size and important part, such as heavy machinery axle shaft, turbine blades and the high load of transmission parts. Including fasteners, crankshaft, gear, as well as loading parts of the motor construction, and so on.

34CrNiMo6 pre hard bars’ inquiry from Chile

We would like to share a real case of our customer with you. Davey from Chile sent us an inquiry for 34CrNiMo6 steel plates. Due to the impact of COVID-19, ocean freight has skyrocketed. The customer did not want to place an order for a long time and hoped that the sea freight would be cheaper in the future. But in fact, ocean freight is getting more expensive day by day, and ocean freight has tripled within a month. Here we suggest that if there is a demand for steel, please contact us for purchase as soon as possible, so as not to affect your purchase budget due to excessive shipping costs.

8 consecutive years no quality event complain, over 80% repeat order rate. Otai undertakes every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.

With over 20 years’ pre-sales and after-sales special steel, Otai helps distributors and end-users to avoid all possible swindle and cheat. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Otai’s 4140 pre hard bars: we keep a daily inventory of 1000 tons which is hard for competitors.

4140 pre hard bars: the steel has good workability, machining deformation of small, anti-fatigue performance is quite good.

On the hardenability of steel, 4140 heat treatment has good strength and good comprehensive mechanical properties, good manufacturability, high yield. The highest temperature is 427 degrees Celsius. 4140 strength, high hardenability, and good toughness, quenching deformation of small, high temperature creep rupture strength, and high. It is used for manufacturing forgings with higher strength and larger tempering cross-section than 35CrMo steel, such as big gear for locomotive traction, supercharger drive gear, rear axle, connecting rod and spring clamp with great load, also can be used for drilling pipe joint and fishing tool of oil deep well below 2000m, and can be used for bending machine mold, etc.

4140 pre hard bars’ inquiry from Ecuador

We would like to share a real case of our customer with you. Leo from Ecuador sent us an inquiry for 4140 steel plates. Due to the impact of COVID-19, ocean freight has skyrocketed. The customer did not want to place an order for a long time and hoped that the sea freight would be cheaper in the future. But in fact, ocean freight is getting more expensive day by day, and ocean freight has tripled within a month. Here we suggest that if there is a demand for steel, please contact us for purchase as soon as possible, so as not to affect your purchase budget due to excessive shipping costs.

8 consecutive years no quality event complain, over 80% repeat order rate. Otai undertakes every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.

With over 20 years’ pre-sales and after-sales special steel, Otai helps distributors and end-users to avoid all possible swindle and cheat. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Otai’s 4140 hot rolled round bars: we keep a daily inventory of 1000 tons which is hard for competitors.

4140 hot rolled round bars: the steel has good workability, machining deformation of small, anti-fatigue performance is quite good.

On the hardenability of steel, 4140 heat treatment has good strength and good comprehensive mechanical properties, good manufacturability, high yield. The highest temperature is 427 degrees Celsius. 4140 strength, high hardenability, and good toughness, quenching deformation of small, high temperature creep rupture strength, and high. It is used for manufacturing forgings with higher strength and larger tempering cross-section than 35CrMo steel, such as big gear for locomotive traction, supercharger drive gear, rear axle, connecting rod and spring clamp with great load, also can be used for drilling pipe joint and fishing tool of oil deep well below 2000m, and can be used for bending machine mold, etc.

4140 hot rolled round bars’ inquiry from Chile

We would like to share a real case of our customer with you. Leo from Chile sent us an inquiry for 4140 steel plates. Due to the impact of COVID-19, ocean freight has skyrocketed. The customer did not want to place an order for a long time and hoped that the sea freight would be cheaper in the future. But in fact, ocean freight is getting more expensive day by day, and ocean freight has tripled within a month. Here we suggest that if there is a demand for steel, please contact us for purchase as soon as possible, so as not to affect your purchase budget due to excessive shipping costs.

8 consecutive years no quality event complain, over 80% repeat order rate. Otai undertakes every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.

With over 20 years’ pre-sales and after-sales special steel, Otai helps distributors and end-users to avoid all possible swindle and cheat. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Otai’s 4140 alloy steel supplier: we keep a daily inventory of 1000 tons which is hard for competitors.

4140 alloy steel supplier: the steel has good workability, machining deformation of small, anti-fatigue performance is quite good.

On the hardenability of steel, 4140 heat treatment has good strength and good comprehensive mechanical properties, good manufacturability, high yield. The highest temperature is 427 degrees Celsius. 4140 strength, high hardenability, and good toughness, quenching deformation of small, high temperature creep rupture strength, and high. It is used for manufacturing forgings with higher strength and larger tempering cross-section than 35CrMo steel, such as big gear for locomotive traction, supercharger drive gear, rear axle, connecting rod and spring clamp with great load, also can be used for drilling pipe joint and fishing tool of oil deep well below 2000m, and can be used for bending machine mold, etc.

4140 steel plate’s inquiry from Colombia

We would like to share a real case of our customer with you. Leo from Colombia sent us an inquiry for 4140 steel plates. Due to the impact of COVID-19, ocean freight has skyrocketed. The customer did not want to place an order for a long time and hoped that the sea freight would be cheaper in the future. But in fact, ocean freight is getting more expensive day by day, and ocean freight has tripled within a month. Here we suggest that if there is a demand for steel, please contact us for purchase as soon as possible, so as not to affect your purchase budget due to excessive shipping costs.

8 consecutive years no quality event complain, over 80% repeat order rate. Otai undertakes every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.

With over 20 years’ pre-sales and after-sales special steel, Otai helps distributors and end-users to avoid all possible swindle and cheat. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Otai’s 4140 plates steel supplier: we keep a daily inventory of 1000 tons which is hard for competitors.

4140 plates steel supplier: the steel has good workability, machining deformation of small, anti-fatigue performance is quite good.

On the hardenability of steel, 4140 heat treatment has good strength and good comprehensive mechanical properties, good manufacturability, high yield. The highest temperature is 427 degrees Celsius. 4140 strength, high hardenability, and good toughness, quenching deformation of small, high temperature creep rupture strength, and high. It is used for manufacturing forgings with higher strength and larger tempering cross-section than 35CrMo steel, such as big gear for locomotive traction, supercharger drive gear, rear axle, connecting rod and spring clamp with great load, also can be used for drilling pipe joint and fishing tool of oil deep well below 2000m, and can be used for bending machine mold, etc.

Customer’s story

We would like to share a real case of our customer with you. Leo from Colombia sent us an inquiry for 4140 steel plates. Due to the impact of COVID-19, ocean freight has skyrocketed. The customer did not want to place an order for a long time and hoped that the sea freight would be cheaper in the future. But in fact, ocean freight is getting more expensive day by day, and ocean freight has tripled within a month. Here we suggest that if there is a demand for steel, please contact us for purchase as soon as possible, so as not to affect your purchase budget due to excessive shipping costs.

8 consecutive years no quality event complain, over 80% repeat order rate. Otai undertakes every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.

With over 20 years’ pre-sales and after-sales special steel, Otai helps distributors and end-users to avoid all possible swindle and cheat. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Otai’s 4140 pre hard plates on sale: we keep a daily inventory of 1000 tons which is hard for competitors.

4140 pre hard plates: the steel has good workability, machining deformation of small, anti-fatigue performance is quite good.

On the hardenability of steel, 4140 heat treatment has good strength and good comprehensive mechanical properties, good manufacturability, high yield. The highest temperature is 427 degrees Celsius. 4140 strength, high hardenability, and good toughness, quenching deformation of small, high temperature creep rupture strength, and high. It is used for manufacturing forgings with higher strength and larger tempering cross-section than 35CrMo steel, such as big gear for locomotive traction, supercharger drive gear, rear axle, connecting rod and spring clamp with great load, also can be used for drilling pipe joint and fishing tool of oil deep well below 2000m, and can be used for bending machine mold, etc.

Customer’s story

We would like to share a real case of our customer with you. Leo from Colombia sent us an inquiry for 4140 steel plates. Due to the impact of COVID-19, ocean freight has skyrocketed. The customer did not want to place an order for a long time and hoped that the sea freight would be cheaper in the future. But in fact, ocean freight is getting more expensive day by day, and ocean freight has tripled within a month. Here we suggest that if there is a demand for steel, please contact us for purchase as soon as possible, so as not to affect your purchase budget due to excessive shipping costs.

8 consecutive years no quality event complain, over 80% repeat order rate. Otai undertakes every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.