Black Angle Steel

Compared to ordinary profiles on the market, our black angle steel products are rolled from national standard high-quality billets, available in two mainstream materials: Q235B ordinary carbon steel and Q355B low-alloy high-strength steel. They boast strong overall toughness, excellent compressive strength and load-bearing capacity, and a stable structure that is not easily twisted or deformed. All our black angle steel products are made to full dimensions and thickness with zero deviation, ensuring precise and uniform angles. The factory-cut edges are smooth and burr-free, eliminating the need for secondary grinding and significantly reducing construction procedures and labor costs. Furthermore, the product's base material is dense and its resistance to pressure and bending far exceeds that of ordinary non-standard angle steel. It exhibits exceptional stability in long-term load-bearing and complex structural stress scenarios, fundamentally preventing engineering deformation and collapse risks, and ensuring project construction quality and service life.

What makes Xinlida's black angle steel different?

Mature and refined hot-rolling production technology is the core guarantee of high-quality black angle steel. Our factory adopts a full-process hot-rolling forming process for black angle steel, which is refined through five core processes: high-temperature heating of steel billets, precision rolling, constant temperature cooling, mechanical straightening, and precision calibration. The entire process is controlled by intelligent equipment to eliminate human error. The high-temperature hot rolling process makes the internal structure of the steel uniform and dense, effectively improving the strength and toughness of the profile and avoiding quality problems such as hollowness, delamination, and cracks. The standardized straightening process ensures that the straightness and angle of each black angle steel meets the standards, the surface is flat and smooth, and the rolled black skin is uniform and regular, without peeling or pitting defects. All products are produced in strict accordance with national standards, with full-process quality inspection and sampling. Quality inspection certificates can be provided for each batch of products, which fully meet the acceptance standards of domestic and foreign projects.

Specifications: Full range of products available, ample stock.

To meet diverse procurement needs, we have established a large inventory system, ensuring readily available standard specifications. Our black angle steel product line is comprehensive, primarily including:

Equal Angle Steel: From small sizes like 25# (25×3/4) to heavy-duty engineering 200#, covering mainstream models such as 30#, 40#, 50#, 63#, 75#, 80#, and 100#, with thicknesses typically ranging from 3mm to 12mm.

Unequal Angle Steel: Offering various aspect ratios such as 40×25, 50×32, 63×40, 75×50, and 100×63 to meet special structural load requirements.

Standard Lengths: Standard factory length is 6 meters per piece, but we also support cutting to any length according to your drawings.

Full coverage of application scenarios: From construction to energy, we can handle your projects.

The applications of hot-dip galvanized angle steel are far broader than you might imagine, and Xinlida's product line covers them all.

Construction: Frame structures, curtain wall joists, prefabricated component connectors – we have equal angle steel ranging from 25×25 to 200×200 mm, and unequal angle steel ranging from 30×20 to 200×125 mm, with wall thicknesses from 3mm to 20mm, all in stock.

Energy: Photovoltaic brackets, wind turbine tower accessories, transmission and transformation towers – we primarily promote Q345B high-strength hot-dip galvanized angle steel, with a yield strength ≥345MPa, offering wind and seismic resistance far exceeding that of ordinary Q235.

Transportation: Highway guardrails, bridge embedded parts, railway catenary supports – our products have passed the certification of the Ministry of Transport's testing center.

Communications: 5G base station towers, communication towers – lightweight design, with a coating thickness increased to 80–100μm, optimized for long-term outdoor exposure.

There are many other scenarios you might not have considered: greenhouse frames, shipbuilding, mining support, warehouse racking… Wherever angle steel is used, hot-dip galvanized angle steel is almost always used, and Xinlida can produce almost all specifications. If your project has special requirements—such as non-standard sizes, special materials (Q390/Q420), or special coatings (zinc-aluminum-magnesium alloy coating)—tell us, and our R&D team will provide a solution within 72 hours. We don't do standard product wholesale; we offer customized services: "We'll manufacture what your project needs." Send us your BOM list now, and we'll help you calculate usage and optimize selections free of charge, saving you not only money but also your time and effort.

Why choose us?

A rigorous quality control system and flexible after-sales support completely eliminate customer concerns about procurement. All black angle steel undergoes four rounds of testing before leaving the factory: material inspection, dimensional calibration, load-bearing capacity testing, and visual inspection. This ensures that defective or non-standard products are eliminated, and that materials, dimensions, and performance meet national and international construction standards. With years of experience in the steel export and domestic engineering markets, the company has served numerous domestic and international infrastructure and steel structure companies, possessing a mature order processing and after-sales system. We can quickly respond to and resolve issues related to product quality and specification errors, fully protecting customers' legal rights and ensuring worry-free procurement and reliable use for every customer.

Whether it's small-scale, scattered purchases, bulk project procurement, or cross-border customized orders, Tianjin Xinlida Steel Pipe can provide you with high-quality black angle steel products and one-stop procurement services. Complete specifications, national standard quality, factory prices, express delivery, and customized processing comprehensively meet your engineering procurement needs. We currently have ample stock and can provide free samples, parameter quotations, and engineering adaptation solutions. We welcome new and existing customers from home and abroad to inquire, discuss business, visit our factory, and place bulk orders. Let's work together for mutual success! You no longer need to compare prices and make mistakes in the complex market. Contact Tianjin Xinlida today to receive a customized quotation and technical parameter sheet for your project. Our engineering sales team will provide you with a one-stop service from material selection and processing to logistics. Inquire now and let the strength of the source factory protect you, locking in the most competitive price!