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 (≤%) |
|
|
|
|
|
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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 |