Carbon Steel Angle ASTM A572
Carbon Steel Angle ASTM A572‌
ASTM A572 is a high-strength, low-alloy structural steel standard developed by the American Society for Testing and Materials (ASTM). It is applicable to angles, H-beams, steel plates, and other profiles. Grades are classified as Gr.42, Gr.50, Gr.55, Gr.60, and Gr.65. The number represents the minimum yield strength (unit: ksi, 1 ksi ≈ 6.895 MPa).

Gr.50: Yield strength ≥ 345 MPa, tensile strength 450–630 MPa, suitable for welded structures such as buildings and bridges.
Gr.65: Yield strength ≥ 450 MPa, tensile strength ≥ 550 MPa, suitable for high-load bridges and heavy machinery.

Chemical Composition (Gr.50 as an example)
C ≤ 0.23%
Mn ≤ 1.35%
P/S ≤ 0.035%
Si ≤ 0.40%
Nb/V Optional addition (grain refinement)

Common sizes:
Equal angles: 50 × 50 × 5 mm, 100 × 100 × 10 mm;
Unequal angles: Customizable (e.g., 75 × 50 × 6 mm)
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Product Details


Product NameSteel Angle Bar
Thickness3mm-24mm
Length6-12m or according to customer's special request
Dimensions(mm)25 - 140mm
ToleranceThickness: +/-0.02mm, Dimensions:+/-2mm
Material gradeQ195, Q215, Q235B, Q345B, Q420Series,S235JR/S235/S355JR/S355/SS440/SM400A/SM400BSS400-SS540 Series, ST Series, A36-A992 Series, Gr50 Series
StandardAISI, ASTM, DIN, JIS, BS, GB/T
Payment terms30% T/T as deposit,70% T/T balance payment before delivery
Delivery timesDelivered within 30 days after the receipt of deposit
Packagetied up with steel strips and wrapped with water proof paper
Advantages1. Reasonable price with excellent quality
2. Abundant stock and prompt delivery
3. Rich supply and export experience, sincere service


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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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