Heat Treatment Mechanical Parts Structural Steel Bars Tolerance - China

Structural steel refers to steel that meets specific strength and formability grades.

Formability is expressed as elongation after break in tensile test.

Structural steel is generally used for load bearing and other applications where the strength of the steel is an important design criterion.

Structural steel can be subdivided into: carbon structural steel, high-quality carbon structural steel, low-alloy high-strength structural steel, alloy structural steel, spring steel, weathering structural steel, chip-free structural steel, non-quenched and tempered mechanical structural steel, etc.

Compared with ordinary carbon structural steel, high-quality carbon structural steel has lower content of sulfur, phosphorus and other non-metallic inclusions.

According to the different carbon content and use, this kind of steel is roughly divided into three categories:

1 - Less than 0.25% C is low-carbon steel, especially 08F, 08Al, etc.

with carbon content less than 0.10%, which are widely used as deep-drawing parts such as automobile, manufacturing, etc.

due to their good deep-drawing and weldability Tanks.

etc, 20G is the main material for making ordinary boilers.

In addition, low carbon steel is also widely used as carburizing steel for machinery manufacturing.

2 - 0.25~0.60%C is medium carbon steel, which is mostly used in the quenched and tempered state to make parts for the machinery manufacturing industry.

The amount of quenching and tempering is 22~34HRC, which can obtain comprehensive mechanical properties and is easy to cut.

3 - More than 0.6% C is high carbon steel, which is mostly used to manufacture springs, gears, rolls, etc.

According to the different manganese content, it can be divided into ordinary manganese content (0.25-0.8%) and higher manganese content (0.7 ~ 1.0% and 0.9 ~ 1.2%) two steel groups.

Manganese can improve the hardenability of steel, strengthen ferrite, and improve the yield strength, tensile strength and wear resistance of steel.

Usually, "Mn" is added after the grade of steel with high manganese content, such as 15Mn, 20Mn, to distinguish it from carbon steel with normal manganese content.

The carbon content of carbon tool steel is between 0.65% and 1.35%.

After heat treatment, high hardness and high wear resistance can be obtained.

It is mainly used to manufacture various tools, cutting tools, molds and measuring tools (see tool steel).

Dongguan Songshun Mould Steel Co., LTD

We are an Industrial and Trading Company with 3500, 0000 hydraulic forging machine, who has about years experience in this field.

We provide a great variety of steels, competitive price with good quality and keep the mass stock are over 20000 tons.

Our main products are round and flat bars for alloy steel, tool steel, stainless steel, spring steel, bearing steel and etc.

In those years we offer a wide range of high-quality steel for automobile manufacturing, engineering machinery, mold tooling, cutting tools manufacturing industry and also get high praise by at home and aboard clients.

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Company Contact:

• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

• Phone: 076985475596

• Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , Guangdong , China

• Email:

• Website: https://songshunsteel.com/

• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
  After more than 10 years development and growing, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter.
  
  Combined with experienced exporting team and professional technical knowledge, Songshun Steel offers both technical advice and support, as well as global professional steel solution and service.
  
  Due to satisfactory reliable quality and professional service, Songshun expands our market worldwide, such as Colombia, Chile, Spain, Turkey, Iran, Vietnam, Malaysia ,UAE, Canada, Brazil, Mexico and so on.
  
  Songshun specialized in Special Steel for almost 20 years.
  
  We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.
  
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