4140 alloy steel plate advantage

1. 

   1. High strength: 4140 steel is a high-strength alloy steel and can be used to manufacture parts that require high strength.

2. 

   2. Good hardenability: After quenching treatment, 4140 steel has very good hardenability and can meet the cooling rate requirements.

3. 

   3. Good toughness: 4140 steel has very good toughness, can withstand large impact loads, and is not prone to cracks.

4. 

   4. Small deformation during quenching: 4140 steel has very small deformation during quenching and can be used to manufacture parts that require high dimensional accuracy.

5. 

   5. High temperature creep strength and durable strength: 4140 steel has good strength and durable properties at high temperatures.

4140 alloy steel plate application

1. 1. In the field of machinery manufacturing, it is often used to manufacture high-strength gears, bearings, machine tools and other parts.
2. 2. In the automotive field, it is used to manufacture engine parts, transmissions, and suspension systems.
3. 3. In the aerospace field, it is used to manufacture aircraft structural parts, rocket engine parts, etc.

4140 alloy steel plate chemical composition

C	Si	Mn	P	S	Cr	Ni	Mo	Cu
0.38～0.45	0.17～0.37	0.50～0.80	≤0.035	≤0.035	0.9～1.20	≤0.30	0.15～0.25	≤0.30

4140 alloy steel plate mechanical property

Tensile strength σb (MPa)	≥1080(110)
Yield strength σs (MPa)	≥930(95)
Elongation δ5 (%)	≥12
Reduction rate of cross-section (%)	≥45
Impact power Akv (J)	≥63
Impact toughness value αkv (J/cm2)	≥78(8)
Hardness	≤217HB

4140 alloy steel plate specification

Product Name	4140 alloy steel plate
Material	alloy steel
Standard	ASTM, AISI, JIS, DIN, GB, EN
Grade	1022,1345,5120,5140,5145,4140,4130,A387 Cr.B, etc.
Size	Thickness: 0.3-200mm Width: 1000mm,1220mm,1500mm,or as required. Length: 2000mm,2400mm,4000mm,or as required.
Surface	Clean, Finishing, Blasting and Painting.....
Payment terms	T/T,L/C,western union.
Package	Standard export seaworthy package or as required.
Contact	If you have any question,please feel free to contact me.