High Strength Low Alloy 4340 Steels Refining Production Supply - China

4340 steel is a high-strength, low-alloy steel belonging to **nickel-chromium-molybde num alloy steel**.

it is widely used in various high-strength and high-load occasions due to its good mechanical properties and high strength.

1 - chemical composition (typical value, %)

| element | content |

| carbon (c) | 0.38–0.43 |

| silicon (si) | 0.15–0.30 |

| manganese (mn) | 0.60–0.80 |

| sulfur (s) | ≤0.04 |

| phosphorus (p) | ≤0.035 |

| chromium (cr) | 0.70–0.90 |

| nickel (ni) | 1.65–2.00 |

| molybdenum (mo) | 0.20–0.30 | 2 - performance characteristics

- **high strength and toughness**: 4340 steels have excellent tensile strength and impact toughness, especially after heat treatment.

- **good hardenability**: suitable for manufacturing parts that require high strength and balanced surface and core properties.

- **wear resistance**: after proper heat treatment, 4340 steels shows good wear resistance.

- **weldability and machinability**: weldability is average, but welding defects can be reduced by preheating and post-heating; machinability is good.

songshun steel

at songshun, as a high-quality high nickel alloy steel supplier, we possess advanced manufacturing processes that ensure the performance of the materials provided.

additionally, we can meet various performance requirements based on customer needs.

songshun company website:

https: //songshunsteel.

com/

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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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