Hot Rolled Steel Plate & Coil (Q235B/Q345B)
Hot Rolled Steel Plate & Coil (Q235B/Q345B)
Hot rolled steel plate and coil in Q235B, Q345B, SS400 and A36 grades from 1.5 to 60 mm, for structural engineering, machinery and heavy fabrication.
Overview
MESCO supplies hot rolled steel plate and coil for structural steelwork, machinery frames, pressure parts, shipbuilding, bridges and general industrial fabrication. Hot rolled steel is the workhorse material of construction and manufacturing, valued for its strength, weldability and cost-effectiveness.
We stock and schedule Q235B, Q345B, SS400 and A36 grades in thicknesses from 1.5 mm sheet to 60 mm plate, with width customization, plasma cutting, leveling and drilling services available before delivery.
What Is Hot Rolled Steel?
Hot rolled steel is produced by rolling steel at high temperature above its recrystallization point. The process allows large reductions in thickness, producing plates and coils with excellent weldability and formability at lower cost than cold rolled material. It is the standard choice where surface finish matters less than strength and economy.
Grade Comparison
| Grade | Standard | Yield Strength | Typical Use |
|---|---|---|---|
| Q235B | GB/T 700 | 235 MPa | Structures, frames, general fabrication |
| Q345B | GB/T 1591 | 345 MPa | Heavy structures, bridges, machinery |
| SS400 | JIS G3101 | 245 MPa | Structural parts, tanks, general use |
| A36 | ASTM A36 | 250 MPa | Buildings, bridges, industrial structures |
Key Features & Benefits
- High strength: reliable yield and tensile properties across all grades.
- Excellent weldability: suitable for arc, MIG and submerged arc welding.
- Wide size range: 1.5 - 60 mm thickness, widths up to 2500 mm.
- Cost effective: the most economical steel for structural applications.
- Processing ready: cutting, leveling, drilling and edge preparation in-house.
- Project support: batch supply with mill certificates for engineering projects.
Specifications & Customization
| Parameter | Range / Option |
|---|---|
| Grade | Q235B, Q345B, Q355B, SS400, A36, S235JR, S275JR |
| Thickness | 1.5 - 60 mm |
| Width | 600 - 2500 mm (customized) |
| Length | Fixed 6/12 m or cut-to-size |
| Form | Plate, coil, sheet, cut blank |
| Processing | Plasma/flame cutting, leveling, drilling, beveling |
For structural projects we support batch supply with consolidated delivery and full documentation, including mill certificates and test reports.
Applications
- Building and bridge structural steel
- Machinery frames, bases and housings
- Shipbuilding and offshore components
- Pressure vessels and storage tanks
- Mining and earthmoving equipment
- General fabrication and repair work
Quality Control
Material is verified against mill certificates and chemical/mechanical test reports. Plate thickness and flatness are inspected after processing, and each bundle is tagged with grade and heat number for full traceability.
Why Choose MESCO?
- 19 years of steel supply and processing experience
- Multi-grade inventory with stable mill scheduling
- Complete cutting and leveling workshop
- Project batch supply with full documentation
- Reliable export packaging for heavy plate
FAQ
What is the difference between Q235B and Q345B?
Q345B has a higher yield strength (345 MPa vs 235 MPa) and is used for heavier or longer-span structures; Q235B is more economical for general frames.
Can you cut plates to my drawing?
Yes, we provide plasma and flame cutting, drilling, beveling and edge preparation to your drawings.
Do you supply with mill certificates?
Yes, every shipment includes mill certificates and, on request, third-party test reports.
What thickness ranges are available from stock?
Common gauges from 1.5 mm to 60 mm are available; special thicknesses are scheduled from the mill.
Can you support large project orders?
Yes, we handle batch project supply with consolidated logistics and phased delivery plans.
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