S355JR Structural Steel Hollow Section for Building and Infrastructure Framework

MOQ： 1 Ton (Sample Order Accepted)
Price： Negotiable — Contact Us for Competitive Quote
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Delivery Time	7-10 Working Days After Deposit
Technique	Hot Rolled/ERW
Material	S235JR / S355JR Structural Steel
Payment Terms	T/T (30% Advance + 70% Before Shipment), L/C at Sight
Wall Thickness	1.5mm-60mm Customizable
Yield Strength	≥ 355 MPa (t ≤ 16mm)
Application	Construction
Shape	Round/Square/Rectangular
Product Type	Structural Hollow Section
Sample Service	Free Samples Available for Quality Evaluation
After-Sales	24/7 Technical Support, Third-Party Inspection Accepted
Profiles	SHS, RHS, CHS Available
Outer Diameter	1/2 inch - 24 inch (21.3mm - 609.6mm)
Standard	EN 10219, EN 10210, ASTM A500
Length	6m, 12m, or Customized (1m - 12m)
Surface Treatment	Black / Oiled / Galvanized / Coated per Requirement
Packaging	Plastic End Plugs + Hexagonal Bundles (max 2,000 kg) + Steel Strips + Waterproof Paper + PVC Sleeves + Sackcloth
Material Grade	S355JR / S355J2H (EN 10219/EN 10210)
Supply Ability	10,000 Metric Tons per Year
Place of Origin	China
Model Number	JW-HS-PIPE
Brand Name	Jingwei Steel
Certification	ISO9001, BV, SGS, ABS

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Product Details
Company Details

Product Specification


Delivery Time	7-10 Working Days After Deposit	Technique	Hot Rolled/ERW
Material	S235JR / S355JR Structural Steel	Payment Terms	T/T (30% Advance + 70% Before Shipment), L/C at Sight
Wall Thickness	1.5mm-60mm Customizable	Yield Strength	≥ 355 MPa (t ≤ 16mm)
Application	Construction	Shape	Round/Square/Rectangular
Product Type	Structural Hollow Section	Sample Service	Free Samples Available for Quality Evaluation
After-Sales	24/7 Technical Support, Third-Party Inspection Accepted	Profiles	SHS, RHS, CHS Available
Outer Diameter	1/2 inch - 24 inch (21.3mm - 609.6mm)	Standard	EN 10219, EN 10210, ASTM A500
Length	6m, 12m, or Customized (1m - 12m)	Surface Treatment	Black / Oiled / Galvanized / Coated per Requirement
Packaging	Plastic End Plugs + Hexagonal Bundles (max 2,000 kg) + Steel Strips + Waterproof Paper + PVC Sleeves + Sackcloth	Material Grade	S355JR / S355J2H (EN 10219/EN 10210)
Supply Ability	10,000 Metric Tons per Year	Place of Origin	China
Model Number	JW-HS-PIPE	Brand Name	Jingwei Steel
Certification	ISO9001, BV, SGS, ABS
High Light	S355JR structural steel hollow section ，steel tube for building framework ，infrastructure steel hollow section

Product Overview

Our S355JR Structural Steel Hollow Section is a high-strength, precision-manufactured product designed for modern building construction and infrastructure projects. Conforming to EN 10219 and EN 10210 standards, these hollow structural sections (HSS) provide an optimal strength-to-weight ratio that enables architects and engineers to create lighter, more efficient structures without compromising on load-bearing capacity. Available in square, rectangular, and circular profiles, our S355JR sections are the versatile backbone of contemporary construction.

Key Features & Advantages

High-Strength S355JR Grade: Minimum yield strength of 355 MPa (for thickness ≤16mm) with tensile strength of 470-630 MPa, providing excellent load-bearing capacity and structural stability for demanding construction applications.
Optimal Strength-to-Weight Ratio: Hollow section design delivers up to 30% weight reduction compared to solid sections of equivalent strength, reducing foundation loads, transportation costs, and handling requirements.
Multi-Profile Availability: Supplied as square hollow sections (SHS), rectangular hollow sections (RHS), and circular hollow sections (CHS) in a comprehensive range of sizes from 20x20mm to 400x400mm.
Excellent Weldability: Low carbon equivalent (CEV) ensures easy welding without pre-heating requirements, reducing fabrication time and costs on construction sites.
Cold-Formed Precision: Manufactured through cold-forming and HF welding with consistent dimensions, straightness, and corner radii for predictable structural behavior in design calculations.

Application Scenarios

Steel frame building structures: columns, beams, trusses, and purlins
Bridge construction: pedestrian bridges, temporary works, and bridge support components
Industrial facilities: warehouse frames, crane runways, and conveyor support structures
Infrastructure projects: stadiums, airport terminals, railway stations, and exhibition halls
Renewable energy: solar farm mounting structures and wind turbine tower internals
Architectural features: exposed structural elements, canopies, and atrium framework

Company Capabilities

Triple Certified: BV, SGS, ABS certified with EN 10204 3.1 inspection certificates and full CE marking compliance per EN 1090
Quality Testing: 100% eddy current weld seam testing, flattening tests, dimensional inspection, and mechanical property verification
Surface Treatment Options: Available as black (mill finish), primed/painted, hot-dip galvanized, or with custom coating systems for enhanced durability
Annual Capacity: 10,000 tons, MOQ 1 ton, delivery 7-10 working days
Flexible Payment: T/T or L/C accepted, pricing USD 600-1,500 per ton
Export-Grade Packaging: Heavy hexagonal bundles with steel strip reinforcement, end protection, and full waterproof wrapping for ocean freight

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory



Business Type:

Manufacturer,Exporter 


Year Established:

2021 


Total Annual:

2000000-5000000


Employee Number:

80~100 


Ecer Certification：

Verified Supplier 

Shandong Jingwei Steel Manufacturing Co., Ltd. is a large-scale enterprise integrating carbon steel, stainless steel, galvanized materials, aluminum and other metal products. It has formed 4 sales bases in Liaocheng, Wuxi, Tianjin and Jinan, and cooperates with 4 steel pipe manufacturers with more t... Shandong Jingwei Steel Manufacturing Co., Ltd. is a large-scale enterprise integrating carbon steel, stainless steel, galvanized materials, aluminum and other metal products. It has formed 4 sales bases in Liaocheng, Wuxi, Tianjin and Jinan, and cooperates with 4 steel pipe manufacturers with more t...

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Shandong Jingwei Steel Manufacturing Co., Ltd.
Dongchangfu District Industrial Park, Liaocheng City, Shandong Province, China
https://www.coilssheets.com/

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