Name: Hot Rolled Carbon Steel Flat Bar Q235 Q195 Q355 S235 S275 ASTM Standard Steel Flat
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Hot Rolled Carbon Steel Flat Bar Q235 Q195 Q355 S235 S275 ASTM Standard Steel Flat

Q235 is a widely used low-carbon structural steel in China. It complies with the GB/T 700-2024 standard, with a yield strength of 235 MPa, a tensile strength of 370–500 MPa, and an elongation ≥26%.

Chemical Composition:
Carbon (C) ≤ 0.22%, Manganese (Mn) 0.30–0.65%, Silicon (Si) ≤ 0.30%, Sulfur (S) ≤ 0.045%, Phosphorus (P) ≤ 0.045%

International Standards: Equivalent to ASTM A36, JIS SS400, and DIN S235JR
Dimension Range:
Thickness: 1.5–60 mm (common sizes include 20×2 mm and 60×5 mm);
Width: 10–600 mm;
Length: 6 m and 9 m Customizable

Surface Treatment: Black (untreated), Hot-Dip Galvanized (HD60G60G, 60g/m² zinc coating on both sides)

Mechanical Properties: Yield Strength ≥ 235 MPa, Tensile Strength 375–460 MPa (Yield value may decrease with increasing thickness)

Product Description

Product Name	Carbon Steel Structural Flat Bar
Type	Round bar,Angle bar,Channel bar,Square bar,Flat bar,I/H bar,Hexagonal bar and profiles
Surface	Black,bright,rough turned,grinding,centreless Ground etc
Standard	GB,AISI,ASTM,DIN,EN,SUS,UNS etc
Diameter	0.5-500mm
Technique	Hot Rolled,Cold Rolled,Cold Drawn,Forged
Tolerance	H8,H9 or as required
Grade	GB: Q195, Q215, Q235A, Q235B, Q235C, Q235D, Q255A, 255B, Q275, Q295A, Q295B, Q345B, Q345C, Q345D, Q345E, Q390A, Q390B,Q390C,Q390D, Q390E, Q420, Q420B, Q420C, Q420D, Q420E, Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D, Q620E, Q690D, Q690E EN:S185,S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 80 JIS: SS330, SPHC, SS400, SPFC, SPHD, SPHE

Company Profile

Shandong Zhonglian Yongsheng Special Steel Co., Ltd. is a steel production enterprise that has been engaged in steel production, processing and sales for many years. Its main products include stainless steel series, carbon steel, galvanized steel and other profile products. It can also provide other metal products according to customer needs, with an annual export volume of about 1 million tons. It has five finishing production lines, three hot-dip galvanizing production lines, and two color coating production lines. It adopts advanced automatic width control system (AWC), automatic thickness control system (AGC), bending roll system, work roll guide roll system and other effective measures to ensure product quality. Its products are exported to more than 30 countries and regions including the United States, Canada, Spain, Russia, Iran, Saudi Arabia, Morocco, India, Pakistan, Malaysia, Singapore, Australia, New Zealand, etc. "Punctuality, integrity, and humanized service" have always been the development principles that the company and all employees have always adhered to.

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