ASTM 4340 Structural Steel Plates
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Gnee Steel (Tianjin) Co., Ltd. is one of the most professional astm 4340 structural steel plates manufacturers and suppliers in China. Welcome to wholesale customized astm 4340 structural steel plates at competitive price from our factory. Good service and quality products are available.
Products Description
4340 is a versatile nickel, chromium, and molybdenum alloy. The 4340 Steel Plate possesses good strength and shows outstanding resistance against corrosion and oxidation in stress-induced systems. 4340 steel sheet possesses superior fatigue and creep resistance over other grades. These sheets can be readily welded using fusion or resistance welding techniques. A 4340 aq steel plate has a melting point up to 1427 degrees C and is a common feature in structural parts, gears, landing gear, and so on.
Chemical Composition of 4340 Steel Plate
| Silicon | 0.15/0.35 |
| Chromium | 0.70/0.90 |
| Molybdenum | 0.20/0.30 |
| Carbon | 0.38/0.43 |
| Manganese | 0.65/0.85 |
| Phosphorus | 0.025 max. |
| Sulfur | 0.025 max. |
| Nickel | 1.65/2.00 |
| Copper | 0.35 max. |
Mechanical Properties of 4340 Steel Sheet
| Alloy | Thickness Range |
Condition/ Temper |
Tensile Strength Ksi |
Yield Strength Ksi |
4340 |
3/8 Inch - 8-1/8 Inch |
STRESS RELIEVED | - | - |
| ANNEALED |
Thermal Properties of 4340 Alloy Steel Sheet
| Properties | Imperial | Metric |
| Thermal conductivity | 309 BTU in/hr.ft².°F | 44.5 W/mK |
| Thermal expansion co-efficient (20°C/68°F, specimen oil hardened, 600°C (1110°F) temper | 6.83 µin/in°F | 12.3 µm/m°C |
FAQ:
Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.
Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
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