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S355JR Square Tube S355 grade is actually a structural grade that is having 355 N/mm2 high yielding strength. No doubt this grade tube that is offered by CHINA UNITED IRON AND STEEL LIMITED is having various good attributes that are making it high in demand. In the industry, the product is manufactured by using very good quality of alloy that is bought from reputable market vendors. The use of latest technology and modern tools are enhancing the production quality. They also are essentially considering various raw material quality standards. It is meant for precision industry produced to greater standards. Tubes to buyers are provided to patrons at market leading rates.
In the market the product is well appreciated because of various good attributes it is having. These are the high tensile strength, withstanding heavy loads, rugged constriction, flexible, durable, excellent surface finishes, resistance to corrosion, good dimensional accuracy. Also, it is having corrosion resistance ability, anti-corrosive in nature, pitting resistance, stress corrosion cracking resistance, crevice corrosion resistance.
In order to check the quality of production, various testing is done. Those are like positive material identification test, hardness test, pitting resistance test, intergranular corrosion test, mechanical test, chemical test, flattening test, flaring test. Additionally, the tests like macro test, micro test, radiography test, hydrostatic test, eddy current test, ultrasonic test, are conducted.
The mill test certification industry to its buyer is offering is a third-party test report, lab test report, radiography test report, and buyers report.
The documents provided by the industry is the commercial invoice, fumigation certification, heat treatment chart, quality assurance plan, raw material test report, material traceability report etc.
In the manufacturing industry, strict inspection is done by third party inspection agency or by expert representatives. This guarantees the industry in delivering a very good quality of product to their clients that is free of human or machine errors.
During the time of shipping, the product is packed carefully that guarantees safer and damage free supplying to the longer distances. It is packed in wooden crates/pallets/boxes, carton boxes.
So now only place the order to the dealer and get S355JR Square Tube to purchase in bulk and get good discounts.
S355JR Steel Square Tube Specifications:
S355JR Steel Square Tube Specifications:
| Product Type | EN-10025-2 Grade S355JR square Tube |
| OD | 15x15mm-600x600mm / 20x30mm-600x800mm |
| Wall Thickness | 1.2mm-20mm, SCH30,SCH40,STD,XS,SCH80,SCH160,XXS etc. |
| Length | Less Than 12m |
| Steel material | Q195 → S355JR |
| Standard | BS EN10296,BS EN10025,BS EN10297,BS6323, BSEN10219,BSEN10217,GB/T13793-1992,GB/T14291-2006, GB/T3091-1993,GB/T3092-1993,GB3640-88 |
| Usage | Used For Structure, Accessorize And Construction |
| Surface Treatment | Bared, Black Painted (varnish coating), Galvanized, With Oiled, 3 PE, FBE, corrosion resistant coating |
| Technique | Electronic Resistance Welded (ERW ), Electronic Fusion Welded (EFW) |
| Section Shape | Square and rectangular |
| Package | Bundle, In Bulk, Bags square galvanised steel hollow section tube, Clients’ Requirements |
| USA | Germany DIN,WNr |
Japan JIS |
France AFNOR |
England BS |
Canada HG |
European old EN |
Belgium NBN |
Spain UNE |
| A572 A678Gr.A SSGrade50 |
St52-3 | SM490A SS490 |
E36-2 | 50B | 350W 350WT |
Fe510B | AE355B | AE355B |
|
C
|
Si
|
Mn
|
P
|
S
|
N
|
Cu
|
CEV
|
|
max 0.24
|
max 0.55
|
max 1.6
|
max 0.04
|
max 0.04
|
max 0.012
|
max 0.55
|
max 0.47
|
| Minimum yield strength Reh MPa |
Tensile strength Rm MPa |
Minimum elongation – A Lo = 5,65 * √So (%) |
Notch impact test | |||||||||||
| Steel grade | Nominal thickness mm |
Nominal thickness mm |
Nominal thickness mm |
Temperature | Min. absorbed energy | |||||||||
| ≤16 | >16 ≤40 |
>40 ≤63 |
>63 ≤80 |
>80 ≤100 |
>100 ≤125 |
>3 ≤100 |
>100 ≤125 |
>3 ≤40 |
>40 ≤63 |
>63 ≤100 |
>100 ≤125 |
°C | J | |
| S355JR | 355 | 345 | 335 | 325 | 315 | 295 | 470-630 | 450-600 | 22 | 21 | 20 | 18 | -20 | 27 |
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