Q195 Structural Carbon Steel Coil is a low‑carbon steel grade under the GB/T700 standard. It offers excellent weldability, good ductility, and reliable forming performance, making it suitable for construction, metal fabrication, machinery parts, and general engineering applications.
Q195 is widely used for light‑to‑medium structural components, welded parts, brackets, frames, and general fabrication. International equivalents include mild steel grades such as ASTM A36 (approx.), SS400, and S235JR (approximate reference only).
🟧 Standards
GB/T700 – Q195 Structural Carbon Steel
Approximate International References: ASTM A36 / SS400 / S235JR
Structural Carbon Steel Standard – International Comparison Table
Country
Standard
Common Grades
China
GB/T 700 / GB/T 1591
Q235B, Q275, Q355B/C/D/E
America
ASTM A36 / A572 / A633 / A656
A36, A572 Gr50, A633, A656
Germany
DIN 17100
ST37‑2, ST52‑3
Japan
JIS G3101
SS400, SS490, SS540
France
NF EN 10025
S235JR, S275JR, S355JR
Britain
BS EN 10025
S235JR, S275JR, S355JR
International (EN)
EN 10025‑2
S235 / S275 / S355
🟧 Available Grades
Q195
Approximate International References: A36 / SS400 / S235JR
🟧 Product Specifications & Available Sizes
Dimensions
(International standard display — not affected by Regular Sizes)
Thickness: 1.8 – 20 mm
Width: 1000 – 2000 mm
Coil ID: 508 mm / 610 mm
Coil OD: 900 – 2000 mm
Coil Weight: 3 – 15 MT
Regular Sizes (mm)
Size
Size
1.8 × 1250 × C
4.5 × 1500 × C
2.0 × 1250 × C
4.75 × 1500 × C
2.5 × 1250 × C
5.5 × 1500 × C
2.75 × 1250 × C
5.75 × 1500 × C
2.75 × 1500 × C
7.5–11.75 × 1500 × C
3.0 × 1500 × C
5.75 × 1800 × C
3.5 × 1500 × C
5.75 × 2000 × C
3.75 × 1500 × C
7.75 × 2000 × C
🟧 Chemical Composition (GB/T700 Q195 – typical)
Element
Max (%)
C
0.12
Mn
0.50
P
0.045
S
0.050
Si
0.30
🟧 Mechanical Properties (Q195 – typical)
Property
Value
Yield Strength
≥ 195 MPa
Tensile Strength
315–430 MPa
Elongation
≥ 33%
Hardness
≤ 100 HB
🟧 Physical Properties
Density: 7.85 g/cm³
Modulus of elasticity: 200 GPa
Thermal expansion: 12×10⁻⁶ /K
🟧 Manufacturing Processes
Hot rolling
Pickling
Leveling
Slitting / Cutting to length
Surface oiling
🟧 Primary Industry Usage
Construction and structural components
Hardware and metal fabrication
Machinery parts and brackets
Welded components
Furniture frames and metal supports
General engineering applications
🟧 Why Use Q195 Structural Carbon Steel Coil
Excellent weldability and ductility
Good forming performance for bending and stamping
Cost‑effective low‑carbon structural steel
Suitable for a wide range of industrial applications
