Square Steel Price - Mill Direct Factory Supplier |
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of Square Steel Price
| Property | Parameter | Description |
|---|---|---|
| Product Name | Square Steel Bar / Square Steel Billet | Hot-rolled or cold-drawn solid square cross-section steel bar |
| Material Grade | Q235B / Q355B / S235JR / A36 / SS400 | Q235B ≈ S235JR (EN) ≈ A36 (ASTM); Q355B ≈ S355JR (EN); SS400 (JIS) |
| Standard Compliance | GB/T 702, EN 10060, ASTM A36, JIS G3101 | Compliant with Chinese GB, European EN, American ASTM and Japanese JIS standards |
| Chemical Composition (C) | ≤ 0.22% (Q235B) / ≤ 0.20% (Q355B) | Carbon content controls hardness and weldability |
| Chemical Composition (Mn) | 0.30–0.70% (Q235B) / 1.00–1.60% (Q355B) | Manganese improves strength and toughness |
| Chemical Composition (P/S) | P ≤ 0.045% / S ≤ 0.045% | Low P and S content ensures better ductility and impact resistance |
| Chemical Composition (Si) | ≤ 0.35% (Q235B) / ≤ 0.55% (Q355B) | Silicon acts as a deoxidizer and strengthening element |
| Tensile Strength | 370–500 MPa (Q235B) / 470–630 MPa (Q355B) | Per GB/T 700 and GB/T 1591; higher grade offers superior load-bearing capacity |
| Yield Strength | ≥ 235 MPa (Q235B) / ≥ 355 MPa (Q355B) | Minimum yield strength at thickness ≤ 16 mm per GB/T 700 / GB/T 1591 |
| Elongation | ≥ 26% (Q235B) / ≥ 20% (Q355B) | Measured on gauge length L₀ = 5.65√S₀; indicates ductility performance |
| Size Range | Side: 10 mm – 200 mm; Length: 3 m – 12 m | Custom cutting available; tolerance per GB/T 702 Class A/B or EN 10060 |
| Surface Finish | Black (hot-rolled), Pickled, Galvanized, Painted | Hot-rolled mill scale surface standard; anti-corrosion coatings available on request |
| Application | Construction, machinery frames, fencing, gratings, general fabrication | Widely used in structural supports, railings, agricultural equipment and industrial frameworks |
| Certification | ISO 9001:2015, Mill Test Certificate (MTC) per EN 10204 3.1 | Third-party inspection (SGS, BV, TÜV) available upon request |
| Packaging | Bundled in 1–3 MT per bundle, steel-strapped | Waterproof paper or plastic film wrapping optional for export shipment |
| MOQ | 1 MT (spot) / 25 MT (container load) | Price varies by grade, size, quantity and delivery terms (EXW / FOB / CIF) |
Square Steel Price - Mill Direct Factory Supplier
Square steel price is one of the most critical factors buyers evaluate when sourcing structural steel for construction, manufacturing, and engineering projects. As a mill-direct factory supplier, we offer cost-effective square steel bars and tubes at rates that eliminate unnecessary middlemen markups, passing genuine savings directly to our clients. Our square steel products are manufactured under strict quality control protocols and comply with international standards including ASTM, EN, and GB specifications. Whether you are procuring small batches for fabrication workshops or placing large-volume orders for infrastructure projects, our pricing model scales efficiently to match your procurement budget. With decades of steel production experience and a vertically integrated supply chain, we maintain consistent product quality while keeping square steel prices highly competitive across global markets. Our team of technical consultants is ready to help you identify the right grade, dimension, and quantity to maximize both performance and cost efficiency for your specific application.
What is Square Steel?
Square steel refers to solid or hollow steel sections with equal-width cross-sections, available as square bars or square hollow sections (SHS). Manufactured from carbon steel, alloy steel, or stainless steel, these products serve critical roles in structural frameworks, machinery components, fencing, and architectural fabrication. Standard side dimensions typically range from 10 mm to 200 mm, with lengths customizable up to 12 meters depending on grade and specification requirements.

Square Steel Technical Specifications
Our square steel products are produced to meet precise dimensional and mechanical tolerances. Key technical parameters include:
- Material Grades: Q235, Q345, S235JR, A36, SS400
- Side Dimensions: 10 mm – 200 mm (custom sizes available)
- Length: 6 m, 9 m, 12 m or cut-to-length
- Tensile Strength: 370–500 MPa (Q235); 470–630 MPa (Q345)
- Yield Strength: ≥235 MPa (Q235); ≥345 MPa (Q345)
- Density: 7.85 g/cm³ at 20°C
- Surface Finish: Black, galvanized, or polished
- Standards: ASTM A36, EN 10025, GB/T 702
All products undergo ultrasonic testing, dimensional inspection, and mechanical property verification before shipment, ensuring every order meets the declared specification without deviation.
Get a Competitive Quote for Square Steel Price
Ready to secure the best square steel price for your next project? As a mill-direct supplier, we provide transparent, mill-direct rates with no hidden fees. Share your specifications and required quantity with our team, and receive a detailed, obligation-free quotation within 24 hours — backed by full technical support throughout your order lifecycle.

- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!

Ratings & Reviews
Know your supplier
Product Introduction
Hongji Profiles Co., Ltd. is a professional manufacturer and supplier specializing in the R&D, production and sales of high-quality steel profiles. With years of experience in the metallurgical industry, we have earned a solid reputation for reliability, precision and customer-centric service, providing global clients with premium steel profile solutions for diverse industrial and architectural needs.
Our core business covers a full range of steel profiles, including angle steel, channel steel, I-beams, H-beams, C-section steel, Z-section steel, flat steel and custom special steel profiles. These products are widely applied in building structures, bridges, transmission towers, industrial machinery, automotive components and shipping. We strictly control material selection, adopting high-quality steel grades such as S235JR, S355JR, SS400, A36 and Q355 series to ensure excellent mechanical properties, durability and corrosion resistance.
Guided by a customer-first philosophy, we have built a comprehensive sales and after-sales network. Our products are exported to Europe, North America, Southeast Asia and Africa, with long-term cooperation with well-known enterprises. Our team provides one-stop services, and we ensure prompt delivery through sufficient inventory and optimized logistics.
Upholding “Quality First, Integrity-based, Innovation-driven, Win-Win Cooperation”, Hongji is committed to becoming a global leader in the steel profile industry, continuously improving quality and service to create a better future with global customers.
FAQ
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request