S235jr S275jr S355jr Ss400 Flat Tool Steel Flat Bar Flat Steel
S235JR Tool Steel Flat Bar

S235JR is a low-carbon structural steel that complies with EN 10025-2. Its carbon content is ≤0.17%, manganese content is ≤1.40%, and sulfur and phosphorus contents are both ≤0.030%. Its yield strength is ≥235 MPa (for thicknesses <16 mm).

International Standards: Equivalent to ASTM A36, JIS SS400, and GB Q235

Mechanical Properties: Tensile Strength 360–510 MPa, Elongation ≥26%

Dimension Range:
Thickness: 15–300 mm;
Width: 10–1010 mm;
Length: 5.5 m, 6.0 m Customizable

Surface Treatment: Black leather (untreated), hot-dip galvanizing (optional)
Applications
Tool Manufacturing: Low-strength molds and fixtures (requires subsequent heat treatment);
Building Structures: Welded brackets, steel gratings (galvanized for corrosion resistance)
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Product Description
Product NameCarbon Steel Structural Flat Bar
TypeRound bar,Angle bar,Channel bar,Square bar,Flat bar,I/H bar,Hexagonal bar and profiles
SurfaceBlack,bright,rough turned,grinding,centreless Ground etc
StandardGB,AISI,ASTM,DIN,EN,SUS,UNS etc
Diameter0.5-500mm
TechniqueHot Rolled,Cold Rolled,Cold Drawn,Forged
ToleranceH8,H9 or as required
GradeGB: 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

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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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Certificate

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  • 微信图片_2025-07-25_175510_390
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  • 微信图片_2025-07-25_175448_750

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