Wuxi Jin Ming Jian De Industry & Trade Co., Ltd. is one of the leading manufacturers and suppliers of q235b carbon steel pipe in China. If you're going to wholesale the newest q235b carbon steel pipe made in China, welcome to get pricelist from our factory. All customized products are with high quality and competitive price.
Q235B Carbon Steel Pipe is a widely used low-carbon structural steel pipe manufactured according to Chinese standards. The designation "Q" stands for Yield Strength, while "235" indicates a minimum yield strength of 235 MPa. The suffix "B" represents the steel quality grade.
Q235B offers excellent weldability, formability, machinability, and cost-effectiveness, making it one of the most commonly used carbon steel pipe materials in construction, fabrication, machinery manufacturing, and infrastructure projects.
With stable mechanical properties and reliable performance, Q235B Carbon Steel Pipe is suitable for structural applications, fluid transportation systems, steel fabrication, and general engineering purposes.
Chemical Composition:
|
Element |
Content (%) |
|
Carbon (C) |
≤ 0.20 |
|
Silicon (Si) |
≤ 0.35 |
|
Manganese (Mn) |
≤ 1.40 |
|
Phosphorus (P) |
≤ 0.045 |
|
Sulfur (S) |
≤ 0.045 |
Mechanical Properties:
|
Property |
Value |
|
Yield Strength |
≥235 MPa |
|
Tensile Strength |
370-500 MPa |
|
Elongation |
≥26% |
|
Impact Test |
20℃ |
|
Hardness |
≤ HRB 100 (Approx.) |
Equivalent Grades in Different Standards:
|
Standard |
Equivalent Grade |
|
China (GB) |
Q235B |
|
USA (ASTM) |
ASTM A36 |
|
Europe (EN) |
S235JR |
|
Japan (JIS) |
SS400 |
|
Korea (KS) |
SS400 |
|
ISO |
Fe360B |
|
India (IS) |
E250 |
|
Australia (AS/NZS) |
250 Grade |
Advantages:
-
Excellent Weldability:Low carbon content ensures easy welding and fabrication.
-
Good Mechanical Strength:Provides reliable strength for structural and industrial applications.
-
Cost-Effective Solution:Lower material cost compared with alloy steels and stainless steels.
-
Easy Processing:Suitable for cutting, bending, drilling, punching, and welding.
-
Wide Availability:Available in various dimensions and manufacturing methods.
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