🟧 Product Overview

ASTM A36 Structural Carbon Steel Coil is a widely used hot‑rolled mild steel coil known for its excellent weldability, good strength, and reliable forming performance. It is commonly used in construction, steel structures, machinery fabrication, and general engineering applications.

A36 is the most recognized structural steel grade in the ASTM system. Equivalent international grades include:

• EN S235JR / S275JR
• JIS SS400
• GB Q235B

These equivalents are provided only for reference; ASTM A36 remains the primary standard for international buyers.

🟧 Standards

• ASTM A36 – Standard Specification for Carbon Structural Steel
• EN 10025‑2 S235JR / S275JR (Equivalent)
• JIS G3101 SS400 (Equivalent)
• GB/T700 Q235B (Equivalent)

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

• ASTM A36 (Primary international grade)
• Equivalent Chinese Grade: Q235B
• Equivalent Japanese Grade: SS400
• Equivalent European Grade: S235JR

🟧 Product Specifications & Available Sizes

Dimensions

• Thickness: 1.2 – 20 mm
• Width: 600 – 2000 mm
• Coil ID: 508 mm / 610 mm
• Coil OD: 900 – 2000 mm
• Coil Weight: 3 – 15 MT

Regular Sizes mm
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

Tolerances

• Thickness tolerance: ±0.02–0.10 mm
• Width tolerance: ±2 mm
• Flatness: As per ASTM A36 / HR tolerance standards

Surface Finish

• Hot rolled black
• Pickled & oiled

Coating

• Optional anti‑rust oil coating

Hardness

• Typical HRB: 60–80

🟧 Chemical Composition (ASTM A36)

Element	Max (%)
C	0.25
Mn	0.80–1.20
P	0.040
S	0.050
Si	0.40

🟧 Mechanical Properties (ASTM A36)

Property	Value
Yield Strength	≥ 250 MPa
Tensile Strength	400–550 MPa
Elongation	≥ 20%

🟧 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
• Steel frames and beams
• Machinery manufacturing
• Automotive components
• General fabrication
• Engineering structures

🟧 Why Use ASTM A36 Structural Carbon Steel Coil

• Excellent weldability and formability
• Stable mechanical strength for structural applications
• Cost‑effective and widely available
• Suitable for large‑scale fabrication and engineering projects

🟧 Why Choose Jaron Steel

• Full range of structural carbon steel coils
• Precise thickness and width control
• Custom coil cutting and slitting
• SGS / BV inspection available
• Export‑grade seaworthy packaging
• Fast delivery from stock and mill production