Category Archives: Blog

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.

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 plates on sale: we keep a daily inventory of 1000 tons which is hard for competitors.

4140 hot rolled 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.

SKS3 cold work tool steel -What are the SKS3 cold work tool steel’s mechanical properties

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. SKS3 cold work tool steel belongs to the carbon alloy tool steel.

SKS3 tool steel is a high-quality cold work tool steel. It belongs to the high-quality high carbon alloy tool steel.

Oil quenched & tempered hardenss is 28-34 HRC. SKS3 steel Annealing delivery hardenss less than 250HB.

SKS3 steels are mainly used for short-run tooling for cold forming dies, blanking dies, and cutting tools operating at ambient temper.

SKS3 tool steel typical applications include medium run dies and intricate press tools. Also include drawing punches, broaches, bushings, and lathe centers. Including chuck jaws, master cavity sinking hobs, and paper cutting machine knives. Including plug gauges, thread gauges, and precision measuring tools. Also commonly used in applications such as cams, cloth cutting knives, and cold taps. Including reamers, collets, cutting hobs, strip slitting cutters, trimmer dies. Including tube expander rolls, plastic molds, and woodworking knives.

Customer’s story

We would like to share a real case of our customer with you. Leo from Chile sent us an inquiry for SKS3 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 42CrMo4 tool steel plates on sale: we keep a daily inventory of 1000 tons which is hard for competitors.

42CrMo4 tool steel plates on sale, the steel has good workability, machining deformation of small, anti-fatigue performance is quite good.

On the hardenability of steel, 42CrMo4 heat treatment has good strength and good comprehensive mechanical properties, good manufacturability, high yield. The highest temperature is 427 degrees Celsius. 42CrMo4 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 Chile sent us an inquiry for 42CrMo4 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 tool steel plates on sale: we keep a daily inventory of 1000 tons which is hard for competitors.

4140 tool steel plates on sale, 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 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.