AISI 4340 Steel Plate Wear-Resistant and Impact Resistant Alloy Steel
Product Description
AISI 4340 Steel Plate Wear-Resistant and Impact Resistant Alloy Steel
AISI 4340 steel plate is a high-strength alloy steel with excellent wear resistance and impact resistance. It is widely used for gears, shafts, machinery parts, automotive components, and armor applications. After heat treatment, it provides both a hard surface and a tough core, ensuring durability and long service life.
Similar Grades
| ZEICIN Grade | GB | AISI/UNS | JIS | DIN/EN |
| 4340/G43400 |
40CrNiMoA
|
4340/G43400
|
SNCM439
|
36CrNiMo4/1.6511
|
Main Chemical Composition%
| C | Si | Mn | S | P | Cr | Mo | Ni | Cu |
| 0.36-0.43 | 0.15-0.35 | 0.60-0.90 | ≤0.03 | ≤0.03 | 0.60-1.00 | 0.15-0.30 | 1.60-2.00 | ≤0.30 |
Heat Treatment
| Process | Temperature (°C) | Cooling Method |
|---|---|---|
| Annealing | 670 - 820 | Furnace cooling |
| Normalizing | 820 - 870 | Air cooling |
| Quenching | 820 - 870 | Oil cooling |
| Tempering | 580 - 680 | Water cooling |
Production process
Major Equipment
2. ESR
3. 5T Forging Machine
4. Vacuum Annealing Furnace
6. Rolling Mill
7. Drawing Mill
8. Spray Forming
Surface Condition
AISI 4340 Steel Plate is widely used for:
-
Gears, shafts, and transmission components
-
Automotive parts such as crankshafts, axles, and connecting rods
-
Industrial machinery parts requiring high wear and impact resistance
-
Heavy-duty fasteners and bolts under high stress
-
Armor and defense applications
Q1: Do you accept trial orders?
A1: Yes, we accept trial orders if the exact size is in stock.
Q2: What is your delivery time?
A2: If the goods are in stock, delivery time is generally 5-15 days. If the goods are not in stock, it may take 15-20 days, depending on the order quantity.
Q3: Do you offer discounts for bulk orders?
A3: Yes, we offer discounts for bulk orders. The specific discount will depend on the order quantity and cooperation terms. Please feel free to contact us for more information.
Q4: What is your product packaging like?
A4: Our products are packaged accordingly in standard industrial packaging to ensure safety during transport. If you have special packaging requirements, please specify them when placing your order, and we will package your items accordingly.
Q5: What payment methods do you support?
A5: We accept a variety of payment methods, including T/T, L/C, Alipay, PayPal, etc. The specific payment method can be arranged flexibly based on the order amount and customer needs.
Alloy Steel
-
High Quality 304 Mirror Stainless Steel Plate
ASTM/AISI 1026/Uns G10260/25mn/Swrch25K/ Low Carbon Steel Square Solid Bar Ms Hexagonal Flat Steel Bar
Constructional Steel 1.0601 C60 Alloy Steel Rod Roubd Bar
Good Quality Price 1.7225 42CrMo4 Qt Rolled/Forged Alloy Steel Round Bar
Nai-Lok Nickel Alloy 825 U-Bend Seamless Tube 3/8''od ASTM B704 Corrosion-Resistant Pipe for Heat Exchangers
Structural Alloy Steel SCR440 40cr Metal Sheet/Steel Plate/Steel Tube
Factory Direct Sales Carbon Seamless Steel Pipe Honed Tube for Hydraulic Cylinder
Food Grade 304 Stainless Steel Pipes From China
SAE1045 Seamless Honed Hydraulic Cylinder Tube
DIN 1.5752 15nicr13 655m13 Hot Rolled Black Alloy Steel Round Bar
AISI H13 SKD61 1.2344/X40crmov5-1 Forged Rolled Mould Steel Flat Bar
Galvanized Corrugated Steel Roofing Sheet Building Material Steel Roofing Iron Sheet
Galvanized Scaffolding Pipe/Carbon Steel Iron Pipes
Alloy Steel 34cr4 41cr4 JIS SCR440 SCR445 SCR430 AISI 4130 4140 51310 Cold Drawn Bars
DIN2391 St52 H8 Honed Tube Cylinder Seamless Steel Pipes and Tubes
DIN2391 E355 St52 H8 H9 Tolerance Hydraulic Cylinder Honed Pipe and Tube