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SS400 Square Tube is one of the most demanding yet commonly used structural steel available in hot rolled form. Grade SS400 is also known as JIS3101 which is regarded as low alloy carbon steel tubes used in numerous applications and industries. This type of steel grade is known for its high tensile strength and offer excellent performance. The grade covers excellent properties and features which makes this grade even more demanding than other structural steel grades.
Product details
CHINA UNITED IRON AND STEEL LIMITED is one of the notable and renowned manufacturing companies that manufacture and supply high quality of square tubes. We being the reputed manufacturer and supplier are aimed to produce high quality of tubes so that it can easily fulfill all the demands and requirement of customers. For this, we make use of premium quality of raw material that is analyzed and tested so that it can perform its best in their respective working areas.
In addition to it, national and international specifications are added to the material. Our team of professionals also makes use of the latest machines to complete the work on time and offer high quality of products to our customers. These tubes are known best for its high tensile strength, excellent corrosion resistance, good formability, workability, long functional life, and dimensional accuracy. They can even withstand in high and elevated temperature while offering excellent performance.
Testing and packaging
Well, talking about the testing and packaging they are the most important processes of manufacturing SS400 Square Tube. These square tubes come across different inspections and tests so as to check the quality and durability. The tests include radiography test, flaring test, third-party inspection, flattening test, ultrasonic test, corrosion resistance test, third-party inspection. There are some more quality tests done like hardness test, visual inspection, chemical composition analysis, and destructive test.
For all these tests, various test certificates are approved that are provided to customers proving products quality and durability. In the end, the SS400 Square Tube is packed in wooden cases, pallets or cartons which in turn prevent tubes from rusting and other damages until it gets delivered to its respective customers.
SS400 Structural Carbon Steel Square Tube Specifications:
SS400 Structural Carbon Steel Square Tube Specifications:
| Product Type | EN-10025-2 Grade SS400 square Tube |
| Specification | OD15*15mm-400*400mm |
| OD | 15*15-400*400mm, WT0.8-12.0mm |
| Wall Thickness | 0.8~12.0mm |
| Standard | GB, BS, ASTM |
| Steel material | Q195. Q215, Q235, Q345 |
| Size length | 15mm-400mm, WT: 0.313mm |
| Surface Treatment | Bared, Black Painted (varnish coating), Galvanized, With Oiled, 3 PE, FBE, corrosion resistant coating |
| 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 |
| A283D A529 Gr.D |
RSt42-2 St 44-2 |
SS400 | E28-2 | 161-430 43A 43B |
260W 260WT |
Fe430B | AE295B | AE255B |
|
C
|
Mn
|
P
|
S
|
N
|
Cu
|
CEV
|
|
max 0.22
|
max 1.5
|
max 0.04
|
max 0.04
|
max 0.012
|
max 0.55
|
max 0.42
|
| 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 | |
| SS400 | 275 | 265 | 255 | 245 | 235 | 225 | 410-560 | 400-540 | 23 | 22 | 21 | 19 | +20 | 27 |
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