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ST37 Universal equal/unequal angle profiles

Angle steel is a long, L-shaped steel bar consisting of two perpendicular wings. It is available in equal-leg angles (wings of equal length) and unequal-leg angles (wings of unequal length).

    Product Introduction

    Angle steel is a long, L-shaped steel bar consisting of two perpendicular wings. It is available in equal-leg angles (wings of equal length) and unequal-leg angles (wings of unequal length). Its core features include:
        High strength and rigidity: They can withstand heavy loads and are suitable for load-bearing structures.
        Corrosion resistance: Some products are hot-dip galvanized, with a zinc coating of 30-50μm, extending their service life.
        Ease of fabrication: They support cutting, welding, cold bending, and other processes, making them suitable for complex components.
       Material diversity: Available in low-carbon steel, low-alloy steel, and stainless steel.

    Production technology

    Hot Rolling: High-quality carbon steel coils are heated and shaped by rolling mills to achieve precise dimensions and mechanical properties.

    Surface Treatment: Pickling removes oxides, followed by galvanizing or painting for enhanced corrosion resistance.

    Cold Bending & Welding (Optional): Custom shapes via cold bending or extended lengths through welding.

    Standards and Grade

    Type

    Standards

    Grades

    Chinese Standard

    GB/T 706-2016

    Q235B、Q345B

    Japanese Standard

    JIS G 3192

    SS400、SM490

    EU standards

    EN 10056-1

    S235JR、S355JR

    US standards

    ASTM A36

    A36、A572

    Note: All national standards cover dimensional deviation, weight tolerance and mechanical properties testing requirements.

    Regular size range:

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    Manufacturing process and quality control

    Process flow: raw materials (low carbon steel billet) → hot rolling → welding reinforcement → heat treatment → surface treatment (galvanizing/painting).
       Key test items: Bending test: Verify ductility (GB/T 232, JIS Z2204).
       Mechanical tests: tensile strength, yield point, elongation.

    Packaging and Shipping

    Standard export packing. Support customized packaging. 

    The modes of transportation: sea freight, bulk sea freight, air freight, land transportation, and multi-modal transportation.

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    Q1: How can we guarantee quality?

    A:Always a pre-production sample before mass production;Always final Inspection before shipment;

    Q2: What can you buy from us?

    A: Carbon Steel,Galvanized Steel,PPGI/PPGL,Ductile iron pipe

    Q3:Why should you buy from us not from other suppliers?

    A: The company has sufficient inventory to ensure that customers receive the goods at the lowest price and the shortest delivery time when purchasing. A professional logistics team and after-sales team will solve all delivery and receiving problems for you.

    Q4: What services can we provide?

    A: Accepted Delivery Terms: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DDU, Express Delivery;

        Accepted Payment Currency: USD, EUR, GBP, CNY;

        Accepted Payment Type: T/T, D/P, D/A,Credit Card,Western Union, Cash.

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