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Welcome to Wuxi Yansheng Technology Co., Ltd. – your trusted manufacturer of high-quality steel products. Since 2017, we have been dedicated to supplying ASTM GB A36 S355jr Hot Rolled Steel Angle Bars that meet the rigorous demands of the global construction industry. With a factory spanning 1,000–3,000 square meters and over 100 skilled employees, we combine advanced hot-rolling technology with strict quality control to deliver angle bars that offer excellent strength, weldability, and dimensional accuracy. Whether you need material for structural frames, bracing, or support beams, our steel angles are designed to provide reliable performance in diverse building projects.
Product Overview
Our hot rolled steel angle bar is produced in compliance with ASTM A36 and GB/T 1591 standards, covering grades A36 and S355JR. The L-shaped cross-section provides superior load-bearing capacity in both tension and compression, making it an essential component for steel structures. The hot rolling process ensures a uniform grain structure, improved ductility, and consistent mechanical properties across every batch.
Key Features & Benefits
High Strength-to-Weight Ratio – Optimized section modulus delivers excellent structural support while reducing overall weight, lowering foundation and transportation costs.
Superior Weldability & Formability – Both A36 and S355JR grades offer good weldability, allowing easy fabrication into complex structures without cracking.
Dimensional Accuracy – Our hot rolling process ensures tight tolerances on leg length, thickness, and straightness, simplifying on-site assembly.
Versatile Applications – Ideal for building frames, bridges, towers, platforms, machinery bases, and reinforcement structures.
Cost-Effective Solution – Hot rolled steel angle bars are economical compared to cold-formed sections, with long service life and low maintenance.
Customizable Sizes – We offer a wide range of leg sizes from 20mm to 200mm and thicknesses from 3mm to 20mm. Lengths can be cut to 6m, 12m, or custom requirements.
Surface Options – Standard black finish (mill scale) or hot-dip galvanized for enhanced corrosion resistance in outdoor or harsh environments.
Technical Specifications (Typical Values)
| Parameter | ASTM A36 | S355JR (EN 10025) |
|---|---|---|
| Tensile Strength (MPa) | 400–550 | 470–630 |
| Yield Strength (MPa) | ≥250 (thickness ≤200mm) | ≥355 (thickness ≤16mm) |
| Elongation (%) | ≥20 | ≥22 |
| Standard | ASTM A36 / A36M | EN 10025-2 |
| Grade Equivalence | A36 | S355JR |
Both grades are well-suited for welded, bolted, or riveted construction. The S355JR offers higher strength for demanding structural applications, while A36 provides excellent ductility and economy for general building works.
Why Choose Wuxi Yansheng Technology Co., Ltd.?
ISO 9001 & ISO 14001 Certified – Our quality management system ensures consistent product reliability and environmental responsibility.
Global Shipping – With annual export value exceeding US$50 Million, we ship from Tianjin, Shanghai, Qingdao, and Ningbo ports to markets across North America, Europe, Southeast Asia, Africa, Oceania, and the Middle East.
Experienced Team – Our 101–200 employees bring years of expertise in steel manufacturing, quality control, and customer service.
Flexible Ordering – We accept small trial orders as well as bulk shipments, with lead times typically 15–30 days depending on quantity and customization.
Competitive Pricing – Direct factory pricing eliminates middleman costs, offering you maximum value for your budget.
Trust in our proven track record. Since 2017, we have supplied steel angle bars to major construction projects worldwide, earning repeat business from contractors and steel distributors. Our commitment to on-time delivery and strict adherence to specifications has made us a preferred partner in the industry. Contact us today to request a quote or discuss your specific requirements – we are ready to support your next building project with top-quality steel angles.
Frequently Asked Questions
What is the difference between A36 and S355JR steel angle bars?
A36 is a standard carbon steel grade with a minimum yield strength of 250 MPa, while S355JR has a higher yield strength of 355 MPa for greater load capacity. S355JR also offers improved impact toughness at low temperatures. Both are hot rolled and widely used in construction.Can you provide custom lengths and sizes?
Yes, we can customize leg sizes from 20mm to 200mm, thickness from 3mm to 20mm, and cut lengths as per your drawings or specifications. Please provide your exact requirements for a tailored quotation.What surface treatments are available?
Standard finish is black (mill scale). For enhanced corrosion resistance, we offer hot-dip galvanizing (HDG) as an optional extra. Other treatments like painting or oiling can be arranged upon request.Are these angle bars suitable for outdoor structures?
Yes, when galvanized or properly painted, they perform well in outdoor environments. The bare steel may rust if exposed to moisture, so we recommend a protective coating for long-term durability.What certifications do your products have?
Our manufacturing facility holds ISO 9001, ISO 14001, OHSAS 18001, and other management system certifications. Each batch of steel angle bars can be supplied with a mill test certificate (MTC) verifying chemical composition and mechanical properties.What is the typical lead time for an order?
For standard sizes (e.g., 50×50×5mm, 6m length), lead time is about 15–20 days after order confirmation. Custom sizes may require 20–30 days. We strive to meet urgent deadlines whenever possible.Do you accept small quantity orders?
Absolutely. We welcome trial orders of as little as 5 tons to allow you to evaluate our product quality. Larger volume discounts are available for bulk purchases.How do you ensure product quality?
We conduct in-process inspection during hot rolling, dimensional checks, and destructive tests (tensile, bend, impact) at our lab. Third-party inspection (e.g., SGS, BV) can also be arranged at buyer’s cost.
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