Category Archives: Blog

4140 plate properties – 4140 steel is a chromium, molybdenum, manganese low alloy steel plate  | 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 have 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.

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 plate ASTM – -High quality 4140 Alloy Steel Plates Black Peeled Polishing | 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

Due to the closure and control, there may be temporary cancellation of flights, and the export of goods from other cities may be arranged in the next few days. Those who have booked Shanghai flight positions need to pay more attention to Shanghai flights and ports.

The direct impact of the domestic epidemic is to reduce transportation capacity, which leads to the continued increase in logistics prices.

The outbreak of current round of the epidemic is expected to drive up global shipping charter costs and prolong the transit time of goods. Finally, remind shippers and forwarders who have shipping plans to make stocking plans in advance!

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 ASTM)

4140 plate – 4140 steel sheet – Supplier of steel plate | 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 wears resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures.

One of our customers Daniel from 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 Bar Supplier)

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 plate steel – 4140 Plates Rolled, Annealed, and Pre-Hard  | 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. (42crmo4 alloy steel plate)

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 have 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.

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 – – Alloy Steel Flat Bar 4140 Cold Finished | 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.

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. James from Canada send us an inquiry about the 4140 sheet, 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 steel supplier)

4140 ht plate — 4140 Quenched & Tempered Steel Plate | 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 wears resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures.

One of our customers Daniel from UK sent us an inquiry for 4140 ht 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 Bar Supplier)

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 sheet — Buy Alloy Steel Sheet/Plate 4140 Annealed Online | 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. (42crmo4 alloy steel plate)

One of our customers Stacy from Indonesia sent us an inquiry for 4140 sheet. 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 have 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.

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.

42CrMo4 steel plate – 42CrMo4 alloy steel plate 1.7225 steel sheet | OTAI

What is 42CrMo4 steel

42CrMo4 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 42CrMo4 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steel.

However, it does have inferior weldability characteristics.

Why Choose OTAI

1)All year round, Otai can guarantee our 42CrMo4 steel plate 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 42CrMo4 steel, working with Uddeholm, Thyssenkrupp, with ISO9001 certified.

Customer’s story

We would like to share a real case of our customer with you. James from Canada send us an inquiry about the 42CrMo4 sheet, 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. (42CrMo4 steel supplier)

42crmo4 alloy bar — 42crmo4 alloy steel grade bar | OTAI

What is 42crmo4 steel

42crmo4 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.

42crmo4 alloy steel well to heat-treatment and is relatively easy to machine in the annealed condition. 42crmo4 steel has good strength and wear resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures. (42crmo4 flats steel)

One of our customers Daniel from UK sent us an inquiry for 42crmo4 alloy bar. 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 42crmo4. And suggested he compare whether the MTC of low-priced is the real 42crmo4 or not. (42crmo4 Steel Bar Supplier)

Why Choose OTAI

1)All year round, Otai can guarantee our 42crmo4 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.

42crmo4 alloy sheet — 42crmo4 steel sheet for Industrial Use | OTAI

What is 42crmo4 steel

42crmo4 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.

42crmo4 alloy steel well to heat-treatment and is relatively easy to machine in the annealed condition. 42crmo4 steel has good strength and wear resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures. (42crmo4 alloy steel plate)

One of our customers Stacy from Indonesia sent us an inquiry for 42crmo4 alloy sheet. As time is tight, she needs to receive these 18 tons of 42crmo4 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 have prepared his 42crmo4 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.

Why Choose OTAI

1)All year round, Otai can guarantee our 42crmo4 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.