Square Hollow Section,Square steel pipes
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Square Hollow Section,Square steel pipes
Square Steel Tubes
Application:
It is widely used in building, machine, chemical equipment, automobile industrial, container, it is also applied to agriculture and mine machine.
We manufacture a wide range of square hollow section which finds usage in many industries for various applications. We are manufacturing these square hollow sections at our state-of-the-art facility and in compliance with international quality standards. Our range of products is meticulously tested on various parameters such as tensile strength, flattening, bending, drift expansion, etc. We believe in delivering the highest quality products to our clients and within stipulated time frame.
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Square Hollow Section,Square steel pipes
Standard：
ASTM A500, GB6728
Steel grade:
ASTM A500: A, B, C
GB6728：Q195，Q215，Q235，Q345
Standard: ASTM A500
Chemical Composition(%)
|
Chemical Requirement |
||||
|
|
Composition % |
|||
|
|
Grade A |
Grade B |
||
|
|
Heat |
Product |
Heat |
Product |
|
Element |
analysis |
analysis |
analysis |
analysis |
|
Carbon max |
0.26 |
0.3 |
0.22 |
0.26 |
|
Manganese max |
… |
… |
1.4 |
1.45 |
|
Phosphorus, max |
0.035 |
0.045 |
0.03 |
0.04 |
|
Sulfur max |
0.035 |
0.045 |
0.02 |
0.03 |
|
Copper, when copper steel is specified, min |
0.20 |
0.18 |
0.2 |
0.18 |
|
Where an ellipsis (...)appears in this table, there is no requirement |
||||
|
For each reduction of 0.01 percentage point below the specified maximum for carton, |
||||
Mechanical Properties
|
Tensile Requirement |
||
|
|
Grade A |
Grade B |
|
Tensile strength, min, psi (Mpa) |
48000 (400) |
70000 (483) |
|
Yield strength, min, psi (Mpa) |
36000 (250) |
50000 (345) |
|
Elongation in 2 in. (50.8mm), min, % |
23 |
23 |
GB6728：
|
SteelGrade |
CHEMICAL COMPOSITION |
MECHANICAL PROPERTIES |
||||||
|
|
C (%) |
Si (%) |
Mn (%) |
P(%)
Max |
S (%)
Max |
YS(Mpa)
Min |
TS(Mpa)
Min |
El (%)
Min |
|
Q195 |
0.06-0.012 |
0.3 |
0.25-0.5 |
0.45 |
0.5 |
195 |
315 |
22 |
|
Q215 |
0.09-0.15 |
0.3 |
0.25-0.55 |
0.45 |
0.5 |
215 |
335 |
22 |
|
Q235 |
0.12-0.22 |
0.3 |
0.3-0.7 |
0.45 |
0.45 |
235 |
375 |
20 |
|
Q345 |
0.20 |
0.55 |
1.0-1.6 |
0.45 |
0.45 |
345 |
510 |
21 |
