6M or Custom Length Hot Rolled Flat Bar Q195 Q345 GB704 Mild Steel Products

1．Product Overview

Hot rolled flat bar is a mild steel product used for structural fabrication, machinery manufacturing, construction, shipbuilding, bridge projects, and general industrial processing.

The product is manufactured according to GB704 and can be supplied in Q195, Q215, Q235, Q345, SS400, ASTM A36, and S275JR grades. With 25–180mm width and 3.0–20.0mm thickness, it is suitable for cutting, welding, drilling, galvanizing, painting, and further fabrication.

2．Technical Solution

The hot rolling process provides stable section shape and consistent dimensional performance for downstream fabrication.

Low carbon grades such as Q195, Q215, and Q235 offer good forming and welding performance. Q345 is selected when higher load-bearing strength is required. Surface treatments such as oiling, sand blasting, galvanizing, and painting can be arranged according to corrosion protection and project installation needs.

3．Specifications

4．Application

Hot rolled flat bars are used in steel structure fabrication, machinery manufacturing, shipbuilding, bridge construction, automobile chassis, industrial brackets, support frames, equipment bases, construction reinforcement, and general metal fabrication.

5．Processing

The product supports cutting, drilling, punching, welding, galvanizing, painting, sand blasting, oiling, and customized length processing.

Flat bars can be supplied in 6M standard length or cut to required project length before shipment.

6．Advantages

• Stable hot rolled section dimensions
• Wide steel grade selection for different structural needs
• Good welding and fabrication performance
• Suitable for galvanizing, painting, and other surface treatments
• 25–180mm width range for multiple fabrication applications
• 6M standard length with customized length options

7．How to Choose

• Choose Q195 or Q215 for light fabrication and forming applications.
• Choose Q235 or ASTM A36 for general structural and construction use.
• Choose Q345 when higher strength and load-bearing performance are required.
• Select surface treatment according to the working environment, especially for outdoor or humid conditions.

8．FAQ

Q1．What grades are available
Q195, Q215, Q235, Q345, SS400, ASTM A36, and S275JR are available.

Q2．What is the available size range
Width is 25–180mm and thickness is 3.0–20.0mm.

Q3．Can customized length be supplied
Yes. Standard length is 6M, and customized length can be supplied according to project requirements.

Q4．What surface treatments are available
Oiled, sand blasted, galvanized, painted, and cut surfaces can be arranged.

Q5．What is the MOQ
Minimum order quantity is 50 MT per size.