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Q235B ASTM A36 Carbon Steel Pipe For Structure Material

ASTM A36, EN 10025 S235JR, SS400 Low Alloy Structure Steel Pipe

Material Q235B
Standard AISI ASTM JIS BS DIN GB
Technique Hot Rolled
Type Steel Pipe
Thickness 0.5-40 mm
OD 15-300mm
Length 5.8-12M
Sample Sample Freely
Packaging Standard seaworthy packaging or as required
Payment T/T ; L/C ;

Product Introduction

Q235B is a common carbon structural steel in China and a specific model of Q235 steel.
Its mechanical properties are regulated by the Chinese national standard GB/T 700-2006.

Q235B steel has high tensile strength and good plasticity, and is suitable for the manufacture of various structural parts, such as building structures, bridges, ships, etc. It is widely used in the steel market and is one of the commonly used structural steel materials in China’s construction and manufacturing industries.

Q235B Steel has the following general characteristics:

1)Chemical Composition: Q235 steel pipe contains elements such as carbon, silicon, manganese, phosphorus, and sulfur. It typically has a carbon content ranging from 0.12% to 0.20%, providing it with moderate strength and toughness.

2)Mechanical Properties: Q235 steel pipe exhibits good mechanical properties, with a yield strength of 235 MPa, tensile strength ranging from 370 to 500 MPa, and elongation of over 24%. These properties make Q235 steel pipe suitable for general structural engineering applications.

3)Welding Performance: Q235 steel pipe has good welding performance and can be welded using common welding methods, producing strong and reliable welded joints.

4)Corrosion Resistance: Q235 steel pipe has moderate corrosion resistance in typical environmental conditions. However, it may corrode more rapidly in harsh environments such as high humidity or exposure to acidic or alkaline substances, requiring corrosion protection measures.

5)Wide Applications: Due to its good overall performance, Q235 steel pipe is widely used in construction, mechanical manufacturing, bridge construction, and other fields as a common structural steel pipe material.

Q235B Steel Plate Chemical Property

C(%)

Si(%)

Mn(%)

P(%)

S(%)

Cr(%)

Ni(%)

Cu(%)

0.12~0.20

≤0.30

0.30~0.70

≤0.045

≤0.045

≤0.30

≤0.30

≤0.30

Q235B Steel Equivalent

Q235B steel equivalent to US ASTM, European EN (Germany DIN, Britain BS EN, France NF EN), Japan JIS, and ISO Standards.

China

Japan

USA

ISO

EN

GB

ISC

JIS

ASTM/AISI

ISO

EN

Number

Q235B

U12355

SS400

A36
Gr.65[240]

E235B

S235JR

1.0038

(GB/T 700-2006)

U12355

(JIS G3101:2004)
(JIS G3106:2004)

(ASTM A573/A573M:2000)

(ISO 630:1995)

(EN 10025-2:2004)

1.0038

Applications

1)Construction: Q235 steel pipe is widely used in construction for structural components such as columns, beams, and supports due to its good mechanical properties and weldability.

2)Mechanical Manufacturing: It finds applications in mechanical manufacturing where its moderate strength and weldability are advantageous for producing various machinery and equipment components. Q235 steel pipes are used in the manufacture of automotive components due to their strength and formability.

3)General Engineering : Due to its versatile properties, Q235 steel pipe is used in a wide range of general engineering applications where a reliable and cost-effective structural material is required.

4)Shipbuilding: Q235B steel is used in the shipbuilding industry for constructing ship hulls and other structural components due to its high strength, good corrosion resistance, and suitability for welding.

5)Fluid Transportation: In some cases, Q235 steel pipe is utilized for transporting fluids in industries such as oil and gas, where its structural integrity and corrosion resistance are sufficient for the intended purpose.

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