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Q345 Carbon Steel Plate ASTM A572

Q345 Carbon Steel Plate ASTM A572

Q345 Carbon Steel Plate refers to a type of steel plate made from the Q345 grade carbon steel, which adheres to the Chinese standard GB/T 1591. This steel grade is known for its moderate strength and good weldability.

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Q345 Carbon Steel Plate refers to a type of steel plate made from the Q345 grade carbon steel, which adheres to the Chinese standard GB/T 1591. This steel grade is known for its moderate strength and good weldability.

Ingredients:

Carbon Steel: The primary material in Q345 Carbon Steel Plate consists of iron with a controlled amount of carbon (typically around 0.16-0.26%), along with other alloying elements such as:

- Manganese: Enhances strength and toughness.

- Silicon: Increases strength and hardness, and acts as a deoxidizer during production.

- Phosphorus and Sulfur: Are present in limited amounts, as high levels can negatively affect ductility and weldability.

- Other trace elements may include chromium, nickel, and copper to provide specific mechanical properties.

Uses:

- Structural Applications: Q345 steel plates are widely used in construction and fabrication of structural components like bridges, buildings, shipbuilding, pressure vessels, and heavy machinery due to their strength and formability.

- Pressure Vessels: They are suitable for manufacturing shells, heads, and structures that need to withstand internal or external pressure.

- Welded Structures: Due to their excellent welding characteristics, Q345 plates are often employed in welded frames, supports, and large-scale fabricated structures.

- Offshore Platforms: In offshore oil and gas platforms where resistance to atmospheric corrosion is necessary, Q345 plates might be used after appropriate surface treatments.

- Railway Rolling Stock: For railway vehicle bodies and undercarriages, Q345 steel offers an ideal balance of strength and weight.

In summary, Q345 Carbon Steel Plates are versatile materials with balanced mechanical properties and ease of fabrication. They are commonly found in various structural applications and industrial settings that require medium to high strength and durability without necessitating more specialized steels.

Product Name Q345 Carbon Steel Plate
Standard ASTM,AISI,DIN,EN,BS,GB,JIS
Grade ASTM/ASME: A36, A283, A285, A514, A516, A572, A1011/A1011M
GB: Q195, Q235/Q235B, Q255, Q275, Q345/Q345B, Q420, Q550, Q690
JIS: SS400, G3131 SPHC, G3141 SPCC, G4051 S45C, G4051 S50C
AISI: 1018, 1020, 1045(SAE: 1010, SAE 1020, SAE 1045)
Technique Hot rolled / Cold rolled
Type Mild steel / Medium carbon steel / High carbon steel
Surface Coated
Processing Welding, Cutting, Bending, Decoiling
Delivery time 10-30 days subject to the clients' requirement and quantity
Package clients' requirement and Standard export sea-worthy packing
MOQ 1 ton

Available Size Range

Dimension Range
thickness 0.5-300mm
Width 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, etc. or customer's request
Length 1000mm~6000mm, or as customer's request

Chemical Composition



Chemical Composition  (≤%)






Steel Grade Quality Grade C Si Mn P S Cr Ni Mo Cu Ti N Nb V B Al, ≥
Q345 Q345A 0.20 0.50 1.70 0.035 0.035 0.30 0.50 0.10 0.30 0.20 0.012 0.07 0.15
Q345B 0.035 0.035
Q345C 0.030 0.030 0.015
Q345D 0.18 0.030 0.025
Q345E 0.025 0.020
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