Good Quality Q235B Carbon Steel Plate

Q235B is a widely used non-alloy carbon structural steel plate specified in the Chinese standard GB/T 700. Renowned for its balanced performance, affordability, and versatility, high-quality Q235B plates are essential in construction, machinery, and general fabrication. Below is a detailed overview of its key characteristics, quality indicators, and applications:

1. Core Characteristics of Q235B

Grade Definition: The "Q" stands for "yield strength" (Chinese: Qiangdu, meaning strength), "235" indicates a minimum yield strength of 235 MPa, and "B" denotes the quality grade (with impact toughness requirements at 20°C).

 

 

 

 

 

 

 

 

 

2. Mechanical Properties of High-Quality Q235B Plates

A premium Q235B plate must meet or exceed the following mechanical requirements:

 

Tensile Strength (σb): 375–500 MPa

Yield Strength (σs): ≥ 235 MPa (at room temperature).

Elongation (δ5): ≥ 26% (excellent ductility, allowing easy bending, rolling, and forming).

Impact Toughness: ≥ 27 J (tested at 20°C using V-notch samples; ensures resistance to brittle fracture in mild environments).

Hardness: ~130–160 HBW (soft enough for machining, drilling, and cold working without excessive tool wear).

 

 

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our Good Quality Q235B Carbon Steel Plate, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

Hot Tags: good quality q235b carbon steel plate, China good quality q235b carbon steel plate suppliers, factory, 2 4856, GH2132, N06600, N06601, N1 0665, N10001