4340 alloy steel plate advantage
The 4340 alloy steel (also known as AISI 4340) is a low alloy steel with high toughness in the annealed state. The 4340 alloy steel is characterized by its excellent ductility, formability, and weldability, making it an excellent metal for a variety of structural applications and components, including power transmission gears and shafts, aircraft parts, and machinery.
4340 alloy steel plate application
- AISI 4340 steel is used in most industrial fields for applications requiring higher tensile/yield strength than 4140 steel.
1、Aircraft landing gear 2、The car 3、Oil and gas drilling 4、Forging 5、Cold and hot forming 6、Mechanical manufacturing 7、Transmission systems, such as power transmission gears and shafts 8、General engineering industry and structural applications, such as: heavy shaft, gear, axle, spindle, coupling, pin, chuck, die, etc.
4340 alloy steel plate chemical composition
4340 alloy steel plate Chemical Composition
| Standard | Grade | C | Mn | P | S | Si | Ni | Cr | Mo |
| ASTM A29 | 4340 | 0.38-0.43 | 0.60-0.80 | 0.035 | 0.040 | 0.15-0.35 | 1.65-2.00 | 0.70-0.90 | 0.20-0.30 |
| EN 10250 | 36CrNiMo4/1.6511 | 0.32-0.40 | 0.50-0.80 | 0.035 | 0.035 | ≦0.40 | 0.90-1.20 | 0.90-1.2 | 0.15-0.30 |
| BS 970 | EN24/817M40 | 0.36-0.44 | 0.45-0.70 | 0.035 | 0.040 | 0.1-0.40 | 1.3-1.7 | 1.00-1.40 | 0.20-0.35 |
| JIS G4103 | SNCM 439/SNCM8 | 0.36-0.43 | 0.60-0.90 | 0.030 | 0.030 | 0.15-0.35 | 1.60-2.00 | 0.60-1.00 | 0.15-0.30 |
4340 alloy steel plate Mechanical Properties
| Properties | Metric | Imperial |
| Thermal expansion co-efficient (20°C/68°F, specimen oil hardened, 600°C (1110°F) temper | 12.3 µm/m°C | 6.83 µin/in°F |
| Thermal conductivity (typical steel) | 44.5 W/mK | 309 BTU in/hr.ft².°F |
4340 alloy steel plate specification
Product Name | 4340 Alloy steel plate |
Thickness | 8mm-150mm |
Length | 1m-14m or according to customer's special request |
width | 1000mm-4000mm |
Material grade | AISI 4140, 4130, 5140, 5120，4340 |
surface | Blackface |
Standard | ASTM, GB, AISI |
Certificate | MTC |
Delivery times | Delivered within 30 days after the receipt of deposit |
Package | tied up with steel strips and wrapped with water proof paper |
Application Range | Widely used in transportation, construction, decoration, equipment around the base plate, machinery, shipbuilding and other fields |
Advantages | 1. Reasonable price with excellent quality |
production workshop
production workshop
production workshop
production workshop
View More
| 310s stainless steel coil price | 304l stainless steel coil wholesale |
| 310s stainless steel coil suppliers | 304l stainless steel coils factory |
| 314 stainless steel coil | 304l stainless steel coils manufacturer |
| 316 2b stainless steel coil | 305 stainless steel coil |
| 316 antique stainless steel coil | 309 stainless steel coil |
| 316 ba stainless steel coil | 310 stainless steel coil |
| 316 hot rolled stainless steel coil | 310s stainless steel coil |
| 316 stainless steel coil factories | 310s stainless steel coil factory |
Application
Our steel products are mainly used in chemical industry, petrochemical industry, offshore, seawater pipeline, desalination plant, nuclear engineering, paper and pulp industry.
Alloy steel plate Outlet
We are a well known worldwide supply and export Alloy Steel Plate in following countries：,Italy, Philippines, France，Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.
津ICP备14003658号-55