Category Archives: Blog

4140 plate uses -It’s widely used for general purpose industrial machining | OTAI

What is 4140 steel

4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components. For example, axles, shafts, bolts, gears, and other applications.

Similar to alloy grade AISI 4130 chrome moly alloy steel but with slightly higher carbon content.

The higher carbon content of 4140 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steel.

However, it does have inferior weldability characteristics.

Steel news

At present, nine counties and cities in Tangshan have lifted the management of regional blockade control.
The clustered epidemics in many places in China have dragged down the production and operation of the manufacturing and construction industries. In the short term, the demand for steel has been unstable, and the rise in steel prices is insufficient.
Once the social “dynamic clearing” is realized in various places, the demand for steel will be released retaliatory, the demand growth may be higher than the supply, the inventory will enter a stage of decline, and there may still be room for steel prices to rise.

Why Choose OTAI

1)All year round, Otai can guarantee our 4140 flat stocks are more than 1500 tons. Different thicknesses and lengths can be customized.

2)After placing an order, shipment can be arranged immediately.

3)Otai is a leading China supplier of 4140 steel, working with Uddeholm, Thyssenkrupp, with ISO9001 certified.

Customer’s story

We would like to share a real case of our customer with you. Jay from Brazil send us an inquiry about the 4140 sheets, which required a lot of specifications and a small quantity. James asked many suppliers who were unwilling to cooperate and finally found us. We are the source manufacturer so that we can meet the needs of customers to customize the specifications of goods. Then James placed the order successfully. After receiving the goods, he said that he would seek our cooperation for a long time. (4140 plate uses)

4140 plate distributors – It offers a strong balance of strength  | OTAI

What is 4140 steel

4140 steel is a cold drawn annealed steel of relatively high hardenability with its chromium content providing good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength.

4140 alloy steel well to heat-treatment and is relatively easy to machine in the annealed condition. 4140 steel has good strength and wear resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures. (4140 plate properties)

One of our customers Stacy from Indonesia sent us an inquiry for 4140 plate steel. As time is tight, she needs to receive these 18 tons of 4140 steel within 45 days. That’s no problem for us because we keep a daily inventory of 1500 tons.

After the customer placed her order, we prepared his 4140 steel ready this week. We also assisted the customer to find the fastest delivery, and the goods were delivered to the customer in 45 days. (4140 plate distributors)

Steel News

After the implementation of the closure and control, the operation of the Shanghai port terminal has not been affected much at present, and the main thing that will be affected is the truck operation.
Although the blockade does not close the port, the efficiency of port operations and terminal operations will be affected. It is not easy for port workers and truck drivers to enter and leave the port due to the epidemic. This leads to delays in timeliness, and it is expected that the freight will also be increased.

Why Choose OTAI

1)All year round, Otai can guarantee our 4140 steel is more than 1500 tons. Different thicknesses and lengths can be customized.

2)Otai is capable of supplying “small lot, various grades” which our competitors cannot do. 

3)10 consecutive years no quality event complaints, over 80% repeat order rate.

4140 annealed flat bar –It is softened from the mill structure | OTAI

What is 4140 steel

4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components. For example, axles, shafts, bolts, gears, and other applications.

Similar to alloy grade AISI 4130 chrome moly alloy steel but with slightly higher carbon content.

The higher carbon content of 4140 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steel.

However, it does have inferior weldability characteristics.

Steel news

At present, nine counties and cities in Tangshan have lifted the management of regional blockade control.
The clustered epidemics in many places in China have dragged down the production and operation of the manufacturing and construction industries. In the short term, the demand for steel has been unstable, and the rise in steel prices is insufficient.
Once the social “dynamic clearing” is realized in various places, the demand for steel will be released retaliatory, the demand growth may be higher than the supply, the inventory will enter a stage of decline, and there may still be room for steel prices to rise.

Why Choose OTAI

1)All year round, Otai can guarantee our 4140 flat stocks are more than 1500 tons. Different thicknesses and lengths can be customized.

2)After placing an order, shipment can be arranged immediately.

3)Otai is a leading China supplier of 4140 steel, working with Uddeholm, Thyssenkrupp, with ISO9001 certified.

Customer’s story

We would like to share a real case of our customer with you. Jay from Brazil send us an inquiry about the 4140 sheets, which required a lot of specifications and a small quantity. James asked many suppliers who were unwilling to cooperate and finally found us. We are the source manufacturer so that we can meet the needs of customers to customize the specifications of goods. Then James placed the order successfully. After receiving the goods, he said that he would seek our cooperation for a long time. (4140 annealed flat bar)

grade 4140 plate -4140 steel plate possesses a full range of hardening | OTAI

What is 4140 steel

4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components. For example, axles, shafts, bolts, gears, and other applications.

Similar to alloy grade AISI 4130 chrome moly alloy steel but with slightly higher carbon content.

The higher carbon content of 4140 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steel.

However, it does have inferior weldability characteristics.

Steel news

At present, nine counties and cities in Tangshan have lifted the management of regional blockade control.
The clustered epidemics in many places in China have dragged down the production and operation of the manufacturing and construction industries. In the short term, the demand for steel has been unstable, and the rise in steel prices is insufficient.
Once the social “dynamic clearing” is realized in various places, the demand for steel will be released retaliatory, the demand growth may be higher than the supply, the inventory will enter a stage of decline, and there may still be room for steel prices to rise.

Why Choose OTAI

1)All year round, Otai can guarantee our 4140 flat stocks are more than 1500 tons. Different thicknesses and lengths can be customized.

2)After placing an order, shipment can be arranged immediately.

3)Otai is a leading China supplier of 4140 steel, working with Uddeholm, Thyssenkrupp, with ISO9001 certified.

Customer’s story

We would like to share a real case of our customer with you. Jay from Brazil send us an inquiry about the 4140 sheets, which required a lot of specifications and a small quantity. James asked many suppliers who were unwilling to cooperate and finally found us. We are the source manufacturer so that we can meet the needs of customers to customize the specifications of goods. Then James placed the order successfully. After receiving the goods, he said that he would seek our cooperation for a long time. (grade 4140 plate)

4140 htsr plate -The chromium content provides good hardness penetration  | OTAI

What is 4140 steel

4140 steel is a cold drawn annealed steel of relatively high hardenability with its chromium content providing good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength.

4140 alloy steel well to heat-treatment and is relatively easy to machine in the annealed condition. 4140 steel has good strength and wear resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures. (4140 plate properties)

One of our customers Stacy from Indonesia sent us an inquiry for 4140 plate steel. As time is tight, she needs to receive these 18 tons of 4140 steel within 45 days. That’s no problem for us because we keep a daily inventory of 1500 tons.

After the customer placed her order, we prepared his 4140 steel ready this week. We also assisted the customer to find the fastest delivery, and the goods were delivered to the customer in 45 days. (4140 htsr plate)

Steel News

After the implementation of the closure and control, the operation of the Shanghai port terminal has not been affected much at present, and the main thing that will be affected is the truck operation.
Although the blockade does not close the port, the efficiency of port operations and terminal operations will be affected. It is not easy for port workers and truck drivers to enter and leave the port due to the epidemic. This leads to delays in timeliness, and it is expected that the freight will also be increased.

Why Choose OTAI

1)All year round, Otai can guarantee our 4140 steel is more than 1500 tons. Different thicknesses and lengths can be customized.

2)Otai is capable of supplying “small lot, various grades” which our competitors cannot do. 

3)10 consecutive years no quality event complaints, over 80% repeat order rate.

4140 q+t plate –4140 has been heat treated to reduce brittleness | OTAI

What is 4140 steel

4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components. For example, axles, shafts, bolts, gears, and other applications.

Similar to alloy grade AISI 4130 chrome moly alloy steel but with slightly higher carbon content.

The higher carbon content of 4140 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steel.

However, it does have inferior weldability characteristics.

Steel news

At present, nine counties and cities in Tangshan have lifted the management of regional blockade control.
The clustered epidemics in many places in China have dragged down the production and operation of the manufacturing and construction industries. In the short term, the demand for steel has been unstable, and the rise in steel prices is insufficient.
Once the social “dynamic clearing” is realized in various places, the demand for steel will be released retaliatory, the demand growth may be higher than the supply, the inventory will enter a stage of decline, and there may still be room for steel prices to rise.

Why Choose OTAI

1)All year round, Otai can guarantee our 4140 flat stocks are more than 1500 tons. Different thicknesses and lengths can be customized.

2)After placing an order, shipment can be arranged immediately.

3)Otai is a leading China supplier of 4140 steel, working with Uddeholm, Thyssenkrupp, with ISO9001 certified.

Customer’s story

We would like to share a real case of our customer with you. Jay from Brazil send us an inquiry about the 4140 sheets, which required a lot of specifications and a small quantity. James asked many suppliers who were unwilling to cooperate and finally found us. We are the source manufacturer so that we can meet the needs of customers to customize the specifications of goods. Then James placed the order successfully. After receiving the goods, he said that he would seek our cooperation for a long time. (4140 q+t plate)

4140 bar ground stock steel -4140 alloy steel has a high tensile | OTAI

What is 4140 steel

4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components. For example, axles, shafts, bolts, gears, and other applications.

Similar to alloy grade AISI 4130 chrome moly alloy steel but with slightly higher carbon content.

The higher carbon content of 4140 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steel.

However, it does have inferior weldability characteristics.

Steel news

At present, nine counties and cities in Tangshan have lifted the management of regional blockade control.
The clustered epidemics in many places in China have dragged down the production and operation of the manufacturing and construction industries. In the short term, the demand for steel has been unstable, and the rise in steel prices is insufficient.
Once the social “dynamic clearing” is realized in various places, the demand for steel will be released retaliatory, the demand growth may be higher than the supply, the inventory will enter a stage of decline, and there may still be room for steel prices to rise.

Why Choose OTAI

1)All year round, Otai can guarantee our 4140 flat stocks are more than 1500 tons. Different thicknesses and lengths can be customized.

2)After placing an order, shipment can be arranged immediately.

3)Otai is a leading China supplier of 4140 steel, working with Uddeholm, Thyssenkrupp, with ISO9001 certified.

Customer’s story

We would like to share a real case of our customer with you. Jay from Brazil send us an inquiry about the 4140 sheets, which required a lot of specifications and a small quantity. James asked many suppliers who were unwilling to cooperate and finally found us. We are the source manufacturer so that we can meet the needs of customers to customize the specifications of goods. Then James placed the order successfully. After receiving the goods, he said that he would seek our cooperation for a long time. (4140 bar ground stock steel)

plate 4140 heat treated -They have an excellent strength to weight ratio  | OTAI

What is 4140 steel

4140 steel is a cold drawn annealed steel of relatively high hardenability with its chromium content providing good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength.

4140 alloy steel well to heat-treatment and is relatively easy to machine in the annealed condition. 4140 steel has good strength and wear resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures. (4140 plate properties)

One of our customers Stacy from Indonesia sent us an inquiry for 4140 plate steel. As time is tight, she needs to receive these 18 tons of 4140 steel within 45 days. That’s no problem for us because we keep a daily inventory of 1500 tons.

After the customer placed her order, we prepared his 4140 steel ready this week. We also assisted the customer to find the fastest delivery, and the goods were delivered to the customer in 45 days. (plate 4140 heat treated)

Steel News

After the implementation of the closure and control, the operation of the Shanghai port terminal has not been affected much at present, and the main thing that will be affected is the truck operation.
Although the blockade does not close the port, the efficiency of port operations and terminal operations will be affected. It is not easy for port workers and truck drivers to enter and leave the port due to the epidemic. This leads to delays in timeliness, and it is expected that the freight will also be increased.

Why Choose OTAI

1)All year round, Otai can guarantee our 4140 steel is more than 1500 tons. Different thicknesses and lengths can be customized.

2)Otai is capable of supplying “small lot, various grades” which our competitors cannot do. 

3)10 consecutive years no quality event complaints, over 80% repeat order rate.

4140 flat bar mill -It is softened from the mill structure | OTAI

What is 4140 steel

4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components. For example, axles, shafts, bolts, gears, and other applications.

Similar to alloy grade AISI 4130 chrome moly alloy steel but with slightly higher carbon content.

The higher carbon content of 4140 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steel.

However, it does have inferior weldability characteristics.

Steel news

At present, nine counties and cities in Tangshan have lifted the management of regional blockade control.
The clustered epidemics in many places in China have dragged down the production and operation of the manufacturing and construction industries. In the short term, the demand for steel has been unstable, and the rise in steel prices is insufficient.
Once the social “dynamic clearing” is realized in various places, the demand for steel will be released retaliatory, the demand growth may be higher than the supply, the inventory will enter a stage of decline, and there may still be room for steel prices to rise.

Why Choose OTAI

1)All year round, Otai can guarantee our 4140 flat stocks are more than 1500 tons. Different thicknesses and lengths can be customized.

2)After placing an order, shipment can be arranged immediately.

3)Otai is a leading China supplier of 4140 steel, working with Uddeholm, Thyssenkrupp, with ISO9001 certified.

Customer’s story

We would like to share a real case of our customer with you. Jay from Brazil send us an inquiry about the 4140 sheets, which required a lot of specifications and a small quantity. James asked many suppliers who were unwilling to cooperate and finally found us. We are the source manufacturer so that we can meet the needs of customers to customize the specifications of goods. Then James placed the order successfully. After receiving the goods, he said that he would seek our cooperation for a long time. (4140 flat bar mill)

4140 steel vs 5140 -Both 4140 steel and 5140 steel are iron alloys | OTAI

What is 4140 steel

4140 steel is a cold drawn annealed steel of relatively high hardenability with its chromium content providing good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength.

In terms of use, 4140 steel can be used for engineering structural parts, like high tensile shafts and gears. 5140 steel is often used for low and moderately stressed parts for vehicles, engines, and machines where a hard, wear-resisting surface is needed.

One of our customers Daniel from the UK sent us an inquiry for 4140 plate. After giving him a quote, he gave us feedback that our price is more expensive than others. We sent him the MTC to prove it was the real 4140. And suggested he compare whether the MTC of low-priced is the real 4140 or not. (4140 steel vs 5140)

Steel News

Recently, the epidemic situation across the country has shown a trend of high local concentration and multi-point distribution, which has affected the supply side, demand side, logistics, and warehousing of the domestic bulk commodity market to varying degrees.
As of April 8, according to incomplete statistics from Mysteel, a total of 21 provinces have released the latest information on the resumption of work. Among them, 19 counties (cities, districts) and development zones (management zones) in Tangshan have been lifted in an orderly manner. Vehicle transportation in the Handan area is hindered, and it is difficult for foreign resources to enter the Handan market, resulting in poor arrival of goods at the base. Xuzhou has strict traffic control, and the circulation of scrap steel resources is seriously hindered; Gulou District and Quanshan District are the most controlled areas, and scrap steel sites are basically closed.

Why Choose OTAI

1)All year round, Otai can guarantee our 4140 steel is more than 1500 tons. Different thicknesses and lengths can be customized.

2)Otai is capable of supplying “small lot, various grades” which our competitors cannot do. 

3)10 consecutive years of no quality event complaints, over 80% repeat order rate.