AR400 AR500 S355J2 MS Box Bar & Square Pipe 100×100×10mm
High-quality welded square steel pipes manufactured to exacting standards, available in various materials including S275JR and S355J2 steel grades.
Product Specifications
Available Product Types & Dimensions
| Product Type |
Specification Range |
Thickness Range |
Length |
| Round Pipe |
OD 310mm - 1000mm |
4mm - 30mm |
Any length |
| Square Pipe |
10mm×10mm - 1000mm×1000mm |
1.2mm - 30.0mm |
- |
| Rectangle Pipe |
20mm×40mm - 400mm×700mm |
1.2mm - 30.0mm |
- |
| L/T/Z Window Section |
28mm/38mm |
0.5mm - 1.5mm |
- |
Product Details
- Materials: Q195, Q215, Q235, Q345, and equivalent grades
- Surface Treatment: Black or bright finish, painted or oiled
- Packing: Export standard packaging (bundles, seaworthy packages, shipped in containers)
- 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: 10,000 MT per month
Applications: Widely used in structural applications, motorbike and automobile manufacturing, ornamental uses, medical equipment, sports equipment, and home furniture.
Main Markets: Europe, America, Africa, Southeast Asia
EN 10025 S355 Steel Specifications
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 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 Method |
| 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)
| Steel Grade |
d ≤ 16mm |
16mm < d ≤ 40mm |
40mm < d ≤ 63mm |
63mm < d ≤ 80mm |
80mm < d ≤ 100mm |
100mm < d ≤ 150mm |
150mm < d ≤ 200mm |
200mm < d ≤ 250mm |
| S355JR |
355 |
345 |
335 |
325 |
315 |
295 |
285 |
275 |
Tensile Strength (≥ N/mm²)
| Steel Grade |
d < 3mm |
3mm ≤ d ≤ 100mm |
100mm < d ≤ 250mm |
| S355JR |
510-680 |
470-630 |
450-600 |
Elongation (≥ %)
| Steel Grade |
3mm ≤ d ≤ 40mm |
40mm < d ≤ 63mm |
63mm < d ≤ 100mm |
100mm < d ≤ 150mm |
150mm < d ≤ 250mm |
| S355JR |
22 |
21 |
20 |
18 |
17 |
| S355K2 |
20 |
19 |
18 |
18 |
17 |
Product Gallery
We welcome both existing and new customers to contact us for negotiations and further communication regarding your steel pipe requirements.