• DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price System 1
  • DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price System 2
  • DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price System 3
  • DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price System 4
  • DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price System 5
  • DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price System 6
DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price

DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
3 m.t.
Supply Capability:
10000 m.t./month

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Specification

Type:
Alloy Steel
Shape:
Steel Round Bar

DIN1.7225/SAE4140 Alloy Steel Round Bar Price

Name

DIN1.7225/SAE4140 Steel Round Bar

Shape

Round Bar/Square Bar/Flat Bar/Plate/Wire

Standard

GB/ASTM/SAE/AISI/DIN/JIS/EN/BS

Surface Treatment:

Black/Peeling/Polished/Machined  

Delivery Condition:

Hot Rolled or Forged/Peeled or Black Surface

Test

SGS/UT 100% Elements Testing

Certificate:

ISO/Mill Certificate

Service:

24 hours online service /

more than 20 years trading and manufacture 

Quality Assurance:

the third party inspection, such as SGS, BV, TUV…etc. is acceptable

Packaging Details:

seaworthy packaging or as per customer's packing instruction

 

Chemical Composition

C

Si

Mn

Cr

 Mo

P

S

0.38-0.43

0.40max

0.60-0.90

0.90-1.20

0.15-0.30

≤0.035

≤0.035

 

Application

4140 Alloy Steel is engineering steel supplied in quenched and tempered conditions.

Very good machinability.

High toughness.

High creep strength.

Repeated impact resistant capability.

 

Packaging & Delivery

Packaging Detail

Sea worthy packing /as per customer's packing instruction

Delivery Detail

15 ~ 40 days after receiving the deposit

DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price

 

Product Show

DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price

 

Workshop

DIN1.7225/SAE4140 CNBM Alloy Steel Round Bar with Low Price

FAQ

Are you a trading company or manufacturer?

Manufacturer

What’s the MOQ?

3 metric ton

What’s your delivery time? 

15-35 days after downpayment received

Do you Accept OEM service?

Yes

what’s your delivery terms?

FOB/CFR/CIF

What's the Payment Terms?

30% as deposit,70% before shipment by T/T

Western Union acceptable for small amount.

L/C acceptable for large amount.

Scrow ,Paybal,Alipay are also ok 

Why  choose  us?

Chose happens because of quality, then price, We can give you both. 

Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals.

What's your available port of Shipment?

Main Port, China

What’s your featured  services?

Our service formula: good quality+ good price+ good service=customer's trust

Where are your Market?

Covering more than 160 countries in the world

 

Q: Can special steel be used in the appliance manufacturing industry?
Yes, special steel can be used in the appliance manufacturing industry. Special steels, such as stainless steel or high-strength steel, offer various advantages such as corrosion resistance, durability, and enhanced mechanical properties. These qualities make them suitable for manufacturing appliances that require high performance, such as refrigerators, ovens, or washing machines. Additionally, special steels can be customized to meet specific design requirements and can contribute to the overall aesthetic appeal of the appliances.
Q: What are the international standards for special steel?
The international standards for special steel vary depending on the specific type and application of the steel. However, some widely recognized international standards organizations, such as the International Organization for Standardization (ISO) and the American Society for Testing and Materials (ASTM), provide guidelines and specifications for special steel in terms of composition, mechanical properties, and performance. These standards ensure uniformity and quality control in the production and usage of special steel across different countries and industries.
Q: What are the different heat treatment techniques used for special steel?
Some of the different heat treatment techniques used for special steel include annealing, tempering, quenching, and case hardening. Annealing is a process that involves heating the steel to a specific temperature and then slowly cooling it to relieve stress and improve its ductility. Tempering is done by reheating the steel to a lower temperature after quenching to reduce brittleness and increase toughness. Quenching is a rapid cooling process that involves immersing the steel in a quenching medium like oil or water to achieve high hardness. Case hardening is a technique that involves adding a hard outer layer to the steel by introducing carbon or nitrogen into its surface and then heat treating it to achieve desired properties. These techniques are used to modify the structure and properties of special steel to meet specific application requirements.
Q: What are the different methods for improving the creep resistance of special steel?
Several methods exist to enhance the creep resistance of special steel. One commonly employed technique involves alloying. By incorporating specific alloying elements like chromium, molybdenum, and vanadium, the steel's creep resistance can be significantly improved. These alloying elements create stable carbides or nitrides that serve as obstacles to dislocation movement, thereby reducing the rate of creep deformation. Heat treatment represents another effective approach. By subjecting the steel to carefully controlled heating and cooling processes, the microstructure can be refined to enhance its creep resistance. Techniques such as quenching and tempering aid in the formation of a fine-grained structure, which in turn increases the steel's strength and resistance to creep. Surface modification offers an alternative means of improving creep resistance. Nitriding and carburizing techniques can be utilized to introduce nitrogen or carbon into the steel's surface layer, creating a hardened layer that enhances creep resistance. Moreover, grain size control can be achieved through methods like grain boundary engineering or severe plastic deformation. By refining the grain structure, the movement of dislocations within the material is impeded, resulting in improved creep resistance. Lastly, the application of coatings can also bolster the creep resistance of special steel. Coatings such as ceramic or metallic coatings provide a protective layer that hampers the diffusion of impurities and slows down the creep rate. To summarize, the improvement of creep resistance in special steel can be accomplished through various techniques, including alloying, heat treatment, surface modification, grain size control, and the use of coatings. These methods aim to fortify the steel's microstructure, hinder dislocation movement, and establish protective barriers against creep deformation.
Q: How does special steel perform in high-temperature fatigue?
Special steel performs well in high-temperature fatigue due to its enhanced mechanical properties and resistance to thermal degradation. It exhibits excellent strength, toughness, and creep resistance, allowing it to withstand prolonged exposure to elevated temperatures without significant loss in performance. Additionally, special steel is designed to maintain its structural integrity and resist fatigue failure even under repeated cyclic loading, making it a reliable choice for high-temperature applications.
Q: How does special steel contribute to the industrial machinery aftermarket industry?
Special steel plays a crucial role in the industrial machinery aftermarket industry by providing high-quality and durable components that enhance the performance and longevity of machinery. One of the main contributions of special steel to this industry is its exceptional strength and resistance to wear and tear. Industrial machinery is subjected to heavy loads, extreme temperatures, and corrosive environments, which can cause regular steel components to deteriorate quickly. However, special steel alloys are specifically designed to withstand these harsh conditions, ensuring that the machinery operates efficiently for an extended period. Moreover, special steel offers excellent machinability, making it easier to manufacture intricate and precise components. This enables aftermarket manufacturers to produce replacement parts that perfectly fit into existing machinery, minimizing downtime during repairs and maintenance. Additionally, special steel's machinability allows for customization, as it can be easily shaped and modified to meet the specific requirements of different machinery models. Furthermore, special steel's exceptional heat resistance makes it ideal for the production of high-temperature components used in industrial machinery. These components, such as turbine blades or furnace parts, need to withstand intense heat without losing their structural integrity. Special steel alloys possess excellent heat resistance properties, ensuring that the machinery can operate at high temperatures without compromising performance or safety. Additionally, special steel contributes to the industrial machinery aftermarket industry by providing corrosion-resistant components. Many industries, such as oil and gas or marine, expose machinery to corrosive substances or environments. Regular steel components are susceptible to corrosion, leading to premature failure and costly repairs. However, special steel alloys are highly resistant to corrosion, enhancing the durability and reliability of machinery in these demanding conditions. Overall, special steel's unique properties, including strength, machinability, heat resistance, and corrosion resistance, significantly contribute to the industrial machinery aftermarket industry. By utilizing special steel components, manufacturers can enhance the performance, durability, and longevity of machinery, reducing downtime, and improving overall operational efficiency.
Q: How does special steel contribute to the defense equipment industry?
Special steel contributes to the defense equipment industry by providing crucial materials with superior strength, durability, and resistance to extreme conditions. It is used in the manufacturing of various defense equipment, including armored vehicles, submarines, aircraft carriers, and missiles. The unique properties of special steel enable the production of advanced weaponry and protective gear, enhancing the overall performance and effectiveness of defense systems.
Q: How does special steel perform in marine environments?
Special steel performs exceptionally well in marine environments due to its high corrosion resistance. It is specifically designed to withstand the harsh conditions of saltwater, preventing corrosion and ensuring long-term durability. Additionally, special steel has excellent strength and toughness properties, making it suitable for various marine applications, such as shipbuilding, offshore structures, and underwater equipment.
Q: Can special steel be used in the musical instrument manufacturing industry?
Yes, special steel can be used in the musical instrument manufacturing industry. Special steel, such as stainless steel or carbon steel, can offer durability, corrosion resistance, and unique tonal characteristics when used in the construction of musical instruments. It is commonly used for producing guitar strings, wind instrument components, and percussion instruments.
Q: Can special steel be used in the packaging industry?
Yes, special steel can be used in the packaging industry. Special steel, such as stainless steel, offers excellent durability, corrosion resistance, and strength, making it suitable for various packaging applications. It can be used to manufacture packaging containers, machinery, and equipment, providing a reliable and long-lasting solution for packaging needs.

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