GB/T 700 Q195 / Q235 / Q345 Hot Rolled Steel Coils / Strip With 145 - 630 MM Width

GB/T 700 Q195 / Q235 / Q345 Hot Rolled Steel Coils / Strip With 145 - 630 MM Width

1．Product Overview

Hot rolled steel strip is suitable for narrow-width processing where stable strip dimensions and medium-gauge thickness are required for downstream fabrication. Compared with wide hot rolled coil, strip material in the 30–630mm width range is more suitable for slitting, bending, profiling, welded strip blanks, and general fabricated strip components.

2．Technical Solution

The product is supplied as hot rolled steel strip with mill edge or slit edge according to downstream processing requirement. Edge condition affects trimming allowance, recoiling route, and narrow-width fabrication efficiency. The strip is produced in thickness from 1.0mm to 5.0mm, with coil ID of 508mm and coil weight around 0.7–5MT, which matches common strip handling and secondary processing routes.

3．Specifications

4．Application

• This material is suitable for strip processing routes that require hot rolled substrate in narrow widths.
• It can be used for recoiling, slitting, bending, profiling, welded strip blanks, structural strip components, and general fabricated strip parts.
• For applications where medium-gauge strip is more practical than wide hot rolled coil, this size range supports easier downstream handling and conversion.

5．Processing

• The strip can be supplied with mill edge or slit edge according to downstream requirement.
• It is suitable for recoiling, slitting, cut-to-length conversion, bending, and general forming.
• For narrower strip production, slit width should be controlled above 30mm.

6．Advantages

• The 1.0–5.0mm thickness range is suitable for medium-gauge hot rolled strip applications.
• The 30–630mm width range supports narrow strip processing rather than wide-coil routing.
• Mill edge and slit edge options allow the strip to match different processing routes.
• Around 0.7–5MT coil weight is practical for strip handling and secondary processing.
• The available grade system covers JIS, GB, SAE, and DIN equivalents for broader application matching.

7．How to Choose

• Choose SPHC when the application follows general JIS hot rolled strip logic.
• Choose Q195 or Q235 when the route follows GB-based general commercial strip use.
• Choose Q345 when higher strength level is required within the listed grade system.
• Choose SAE1006 or SAE1008 when the downstream process is aligned with SAE-based material routing.
• Choose slit edge when final narrow-width processing and edge control are important, and choose mill edge when original edge condition is acceptable in the downstream route.

8．FAQ

Q1．What is the thickness range of this hot rolled steel strip
The thickness range is 1.0–5.0mm.

Q2．What is the width range
The width range is 30–630mm.

Q3．What is the coil ID
The coil ID is 508mm.

Q4．What is the coil weight range
The coil weight is around 0.7–5MT.

Q5．What is the minimum slit width
The minimum slit width is 30mm.