S275 Hot Rolled High Toughness Carbon Steel Plate/Sheet for Machinery

1. Grade Overview

Standard: Complies with EN 10025-2: 2004/2021 (European standard for hot-rolled structural steel).

Classification: A carbon structural steel with good mechanical properties, affordability, and versatility, widely used in general engineering and machinery applications.

2. Key Properties

Mechanical Properties

Property	Typical Values (for thickness ≤ 16 mm)
Yield Strength (ReH)	≥ 275 MPa
Tensile Strength (Rm)	410–560 MPa
Elongation (A5)	≥ 22%
Impact Toughness	Varies by quality grade (e.g., JR, J0, J2):

 

JR: Tested at +20°C, ≥27 J (longitudinal)

J2: Tested at -20°C, ≥27 J |

High Toughness: Refers to its ability to absorb energy under impact or dynamic loading, critical for machinery subjected to stress or vibration.

Chemical Composition (Typical, %)

Element	Max Content (for quality grade JR)
Carbon (C)	0.21%
Silicon (Si)	0.40%
Manganese (Mn)	1.50%
Phosphorus (P)	0.045%
Sulfur (S)	0.045%

 

 

 

 

 

 

 

 

Low Carbon Content: Ensures good weldability and formability.

3. Manufacturing Process

Hot Rolling: Performed at temperatures above the steel's recrystallization point, resulting in:

Improved grain structure and mechanical properties.

Uniform thickness and surface finish for plates/sheets.

Optional Heat Treatment:

Normalizing (N): Enhances consistency in mechanical properties.

Thermo-Mechanical Rolling (M/ML): Achieves fine-grain structure without additional heat treatment.

 

 

 

 

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 S275 Hot Rolled High Toughness Carbon Steel Plate / Sheet For Machinery, 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.

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