S355JR Carbon Steel Seamless Square Tube with Black Surface Treatment in 30*30-500*500 Sizes
Price:
US $650-1,250 / Ton
MOQ:
50 Tons
Delivery Time:
Negotiable
Product Description
Steel Square Tube S355JR S275JR S355J0 Carbon Steel Seamless Square Tube
High-quality carbon steel seamless square tubes available in various grades including S355JR, S275JR, and S355J0, designed for structural applications requiring superior strength and durability.
Product Specifications
Available Products & Dimensions
| Product Type | Size Range | Thickness | Length |
|---|---|---|---|
| Round Pipe | OD10mm - 1000mm | 4mm - 30mm | Custom lengths available |
| Square Pipe | 10mm×10mm - 1000mm×1000mm | 1.2mm - 30.0mm | Custom lengths |
| Rectangle Pipe | 20mm×40mm - 400mm×700mm | 1.2mm - 30.0mm | Custom lengths |
| L/T/Z Window Section | 28mm/38mm | 0.5mm - 1.5mm | Custom lengths |
Additional Product Details
- Materials: SS400, S235JR, S275JR, S355JR, 1020, 1045, 4140, etc.
- Surface Treatment: Black, galvanized, or painted
- Packing: Export standard packing (bundles, seaworthy package, shipped in container)
- Delivery Port: Shanghai, China
- Lead Time: Within 30 days after receiving original L/C or deposit
- Minimum Order Quantity: 10 Tons per size
- Production Capacity: 10,000MT per month
Applications
Widely used in structural applications, motorbike and automobile manufacturing, ornamental uses, medical equipment, sport equipment, and home furniture.
EN 10025 S355 Steel Grades
S355 steel is a European standard structural steel grade according to EN 10025-2:2004, offering superior properties compared to S235 and S275 steels in yield strength and tensile strength.
S355 Steel Grade Designations
- S355JR (1.0045): Minimum 27J impact energy at room temperature (20°C)
- S355J0 (1.0553): Minimum 27J impact energy at 0°C
- S355J2 (1.0577): Minimum 27J impact energy at -20°C
- S355K2 (1.0596): Minimum 40J impact energy at -20°C
Technical Data Sheets
Chemical Composition
| Steel Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cu (%) | N (%) | Deoxidation |
|---|---|---|---|---|---|---|---|---|
| S355JR | ≤0.24 | ≤0.55 | ≤1.60 | ≤0.035 | ≤0.035 | ≤0.55 | ≤0.012 | Rimmed steel not allowed |
| S355J0 | ≤0.20 | ≤0.55 | ≤1.60 | ≤0.030 | ≤0.030 | ≤0.55 | ≤0.012 | - |
| S355J2 | ≤0.20 | ≤0.55 | ≤1.60 | ≤0.025 | ≤0.025 | ≤0.55 | - | Fully killed |
| S355K2 | ≤0.20 | ≤0.55 | ≤1.60 | ≤0.025 | ≤0.025 | ≤0.55 | - | Fully killed |
Mechanical Properties - Yield Strength (≥ N/mm²)
| Thickness (mm) | d≤16 | 16< d ≤40 | 40< d ≤63 | 63< d ≤80 | 80< d ≤100 | 100< d ≤150 | 150< d ≤200 | 200< d ≤250 |
|---|---|---|---|---|---|---|---|---|
| S355 Grades | 355 | 345 | 335 | 325 | 315 | 295 | 285 | 275 |
Mechanical Properties - Tensile Strength (≥ N/mm²)
| Thickness (mm) | d<3 | 3 ≤ d ≤ 100 | 100 < d ≤ 250 |
|---|---|---|---|
| S355JR | 510-680 | 470-630 | 450-600 |
| S355J0/J2/K2 | 510-680 | 470-630 | 450-600 |
Mechanical Properties - Elongation (≥%)
| Thickness (mm) | 3≤d≤40 | 40< d ≤63 | 63< d ≤100 | 100< d ≤150 | 150< d ≤250 |
|---|---|---|---|---|---|
| S355JR | 22 | 21 | 20 | 18 | 17 |
| S355J0/J2/K2 | 20 | 19 | 18 | 18 | 17 |
Product Gallery
Company Overview
We are a comprehensive steel pipe enterprise integrating production, processing, and sales. Our main business includes steel tubes, square tubes, seamless square tubes, thick wall square tubes, cold drawn square tubes, and various specialized steel tube products.
Product Range
We offer a complete range of square tube and rectangular tube specifications from 20×20mm to 800×800mm square tubes and 20×30mm to 400×800mm rectangular tubes, with thickness ranging from 0.6mm to 28mm, totaling over 2,800 different specifications.
Manufacturing Partnerships
We maintain excellent cooperative relationships with major steel pipe factories including Tianjin Seamless Steel Pipe Factory, Baotou Steel Pipe Factory, Chengdu Steel Pipe Factory, Wuxi Steel Pipe Factory, and Baosteel Steel Pipe Factory.
Applications
Our products serve various industries including steel structures, large venues, exhibition centers, lifting machinery, shipbuilding, storage shelves, decoration, transportation facilities, airport construction, railway vehicles, bridge support, mine support, and many other industrial applications.
Company Advantages
Competitive Prices
We maintain strong sales foundations and financial strength with diversified operational modes, establishing strategic cooperative partnerships with steel manufacturers to ensure competitive pricing and market leadership.
Quality Assurance
Professional quality control from procurement to sales, with comprehensive quality audits and continuous tracking of steel mill quality to ensure reliable product performance.
Sincere Service
24-hour distribution service with multiple transportation options including automobile, railway, and ship. Complete steel product portfolio with simplified ordering processes via telephone, telex, and internet platforms.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben