ASTM 4340 Alloy Steel Flat Bar

1,ASTM 4340 Alloy Steel Flat Bar
2,Thickness:10~90mm
3,Width:60~610mm
4,Length:4m~6m
5,ISO9001 2000

Sichuan Liaofu Special Steel Trading Co., Ltd.

alloy structural steel

 

AISI 4340/GB 40CrNi2Mo

 

Dimensions:

Flat steel: thickness:10mm~90mm; width: 60mm~610mm;

               length: 4~6m, or at the customers' requirements

 

Sichuan Liaofu Special Steel Trading Co., Ltd.

Alloy strctural  steel

1, Grade: AISI 4340/GB 40CrNi2Mo2, Chemical composition

C	Si	Mn	Cr	Mo	Ni	Cu
0.37~0.45	0.15~0.35	0.50~0.80	0.60~0.90	0.15~0.25	1.25~1.65	≤0.025

 3.Payment term: .L/C or T/T with 30% deposit

4.Trade term: FOB

5, Delivery time : within a month

6, Port: Dalian 
7,MOQ:1 MT

 

Mechanical Properties:

Tensile Strength: σb (MPa): ≥980(100)

Yield Strength: σs (MPa): ≥835(85)

Elongation: δ5 (%): ≥12  

Reduction of area: ψ (%): ≥55

Akv (J): ≥78

Impact Toughness αkv (J/cm2): ≥98(10)

Hardness: ≤269HB

Characters:

1, tensile steel round bar
2, high strength
3, high toughness
 

Application: used for making structural components of high strength such as aircraft engine ,cross beam,undercarrige,pressure vessel,rocket hull,heavy-load torsion shaft,etc.