4340 alloy steel plate
AISI 4340 (E4340) alloy steel is a medium carbon, low alloy steel known for its toughness and strength. Machining is done typically in the annealed condition. 4340 steel properties offer good ductility in the annealed condition, allowing it to be bent or formed. Fusion and resistance welding is also possible with our 4340 steel from stock.
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AISI 4340 (E4340) alloy steel is a medium carbon, low alloy steel known for its toughness and strength. Machining is done typically in the annealed condition. 4340 steel properties offer good ductility in the annealed condition, allowing it to be bent or formed. Fusion and resistance welding is also possible with our 4340 steel from stock.
4340 steel alloy is used primarily for structural applications such as aircraft landing gears. 4340 alloy steel is also used in the manufacturing of structural parts like gears, sprockets, chucks, molds, and more.
SAE 4340 Chromoly steel is ideal for parts requiring critical harden-ability and high strength metal. For example, gears and aircraft parts which operate under highly stressed, severe conditions perform exceptionally when made from 4340 AQ metal. The term Aircraft Quality (AQ) steel means it is suitable for the manufacturing of aircraft parts which are subject to magnetic particle inspection after machining.
| Carbon | 0.38/0.43 | Sulfur | 0.025 max. | Molybdenum | 0.20/0.30 |
| Manganese | 0.65/0.85 | Silicon | 0.15/0.35 | Nickel | 1.65/2.00 |
| Phosphorus | 0.025 max. | Chromium | 0.70/0.90 | Copper | 0.35 max. |
Shandong Kuaima Steel Co., Ltd. has advanced special smelting, investment casting, pipe making and other production equipment. The company has 15 advanced production lines, which can independently produce Alloy steel plate，hot/cold rolled steel, galvalume steel, galvanized steel, prepainted steel and stainless steel coils, strips, plates, plates, pipes, bars and other products. The standing inventory is more than 450,000 tons to meet the customer's demand for delivery time.
We have professional testing equipment. We have our own testing center laboratory to guarantee the quality of our products.
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