Aisi Astm 4340 Steel For Sale Factory Supply - China

GB steel grade in my country: 40CrNi2MoA, German DIN steel grade 36CrNiMo4, German DIN material number 1.6511, French NF standard 40NCD3, Japanese JIS standard SNCM439, British BS standard 816M40, American AISI/ASTM4340, American UNS standard G43400 It has high strength, toughness and outstanding hardenability and stability against overheating, but it has high sensitivity to white spots and temper brittleness.

The weldability is poor, it needs to be preheated at high temperature before welding, and the stress needs to be relieved after welding, and it can be used after quenching and tempering.

1 - Mechanical properties:

Elongation δ5 (%): ≥12

Reduction of area ψ (%): ≥55

Impact energy Akv (J): ≥78

Impact toughness value αkv (J/cm2): ≥98(10)

Sample size: sample blank size is 25mm heat treatment:

(quenching 850 degrees; coolant: oil; tempering temperature 600 degrees; coolant: water, oil);

Steel annealed or high temperature tempered supply state Brinell hardness HBW is less than or equal to 269; Delivered in the state of heat treatment (normalizing, annealing or high temperature tempering) or without heat treatment, the delivery state should be specified in the contract.

Songshun specialized in Special Steel for almost 20 years.

We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.

Welcome your contact 24 hours a day!!!

jacklu---songshunsteel .

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+86-18269260283

Songshun Tiktok: songshunsteelfacto ry

Songshun Facebook: Songshun Steel

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Songshun Company Website: steelpurchase.

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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.
  
  Welcome your contact 24 hours a day!!!
  
  Skype/Whatsapp/We chat: +86-18269260283
  
  Songshun Tiktok: mikizhuo
  
  Songshun Facebook: Songshun Steel
  
  Songshun YouTube: MiKi Zhuo
  
  songshunmoldsteel414 04340