ASTM a36 a53 Q235 Q345 carbon equal angle steel galvanized L shape
mild steel angle
Carbon Structural Steel Introduction
Carbon steel structural shapes are ideal for construction where
high strength is required but the low luster is not an issue. Our
stock of Carbon structural steel includes a wide variety of shapes
and sizes.
Angle steel belongs to carbon structural steel for construction,
which is a kind of simple section steel, mainly used for metal
components and workshop frames. Weldability, plastic deformability
and certain mechanical strength are the requirements for use. The
raw material of the angle steel produced is low carbon billet, and
the final angle steel is delivered in hot-rolled, normalized or
hot-rolled state.
Benefits: Destroy the ingot structure, refine the grains of the
steel, eliminate the microstructure defects of the steel, make the
steel structure dense, and improve the mechanical properties of the
steel. This improvement is mainly reflected in the rolling
direction, so that the steel no longer has a certain isotropy; the
bubbles, cracks and porosity formed during the casting process can
also be welded by high temperature and high pressure.
Carbon Structural Steel Angles
Carbon steel angle is hot rolled steel or high strength low alloy
steel bars shaped to a 90 degree ‘L’ shaped bar. The sides or legs
of the “L” may be equal or unequal. Other names for carbon steel
angle are angle irons or steel angle bars. Structural steel angle
shapes are often used in applications that aid in improving
rigidity and good resistance to bending in any direction. Because
of its high cost performance, angle steel is widely used in housing
construction, bridges, tunnels, wire towers, ships, brackets, steel
structures and other fields to support or fix structures.
We stock steel angles in the following grades: Q235B steel angle,
A-36 steel angle, A-36 galvanized steel angle.
Carbon Structural Steel Beam
Structural Steel Beams come in I-Beam and H-Beam. All are designed
to span an area for support in construction. The shape of a beam
affects the overall strength and weight. W or Wide Flange Beams
have a broad flange on either side of the web. They are the most
common due to their proven ability to withstand shear loads and
bending. We stock carbon steel grade 1045 beam, ASTM A992 (A572
Grade 50), and A529-50 Structural Beam.
I-Beams, also known as H-Beams have an I or H cross-section. The
horizontal elements of the “I” are flanges while the vertical
element is the “web”. I-Beams are commonly made of structural steel
but can be formed out of aluminum. I-beams are most widely used in
construction and can have an application for use in both beams as
well as columns. We stock many different sizes, lengths, and
specifications for I-beams.
| Grade | Chemical Composition |
| C | Si | Mn | S,P | Nb | V | N | Cu | CEV |
| S235JR | ≤0.17 | - | ≤1.40 | ≤0.035 | - | - | ≤0.012 | ≤0.55 | ≤0.35 |
| S235J0 | | | | ≤0.030 | | | | | |
| S275JR | ≤0.21 | - | ≤1.50 | ≤0.035 | - | - | ≤0.012 | | ≤0.40 |
| S275J0 | ≤0.18 | | | ≤0.030 | | | | | |
| S355JR | ≤0.24 | ≤0.55 | ≤1.60 | ≤0.035 | ≤0.05 | ≤0.13 | ≤0.012 | | ≤0.45 |
| S355J0 | ≤0.20 | | | ≤0.030 | | | | | |
| S355J2 | | | | ≤0.025 | | | - | | |
| Grade | Yield Strength (MPa)
| Tensile Strength (MPa) | Extensibility (％) | Longitudinal impact |
| ≤16 | >16～40 | | | Test Temperature (℃) | Ballistic Work (J) |
| S235JR | ≥245 | ≥235 | 360～510 | ≥26 | 20 | ≥27 |
| S235J0 | | | | | 0 | |
| S275JR | ≥285 | ≥275 | 410～560 | ≥23 | 20 | ≥27 |
| S275J0 | | | | | 0 | ≥27 |
| S355JR | ≥365 | ≥355 | 470～630 | ≥22 | 20 | ≥27 |
| S355J0 | | | | | 0 | ≥27 |
| S355J2 | | | | | -20 | ≥27 |
| S450J0 | ≥475 | ≥455 | 550～720 | ≥19 | 0 | ≥27 |
Essential for Structural Applications
A36 steel is a very frequently used mild- or hot-rolled steel. It
maintains a somewhat rough surface and can be machined and
manipulated using a variety of processes. These include multiple
types of welding, as well as grinding, drilling, punching, and
riveting.
Its flexibility and strength make A36 steel suitable for a full
variety of applications, including fixtures, rings, forming tanks,
bearing plates, cams, and gears, among many others.
Strength and Flexibility
With a tensile yield strength of 36,300 psi and an ultimate tensile
strength that ranges from 58,000 to 80,000 psi, A36 steel combines
strength with flexibility. A36 steel can maintain its strength at
temperatures ranging up to 650°F. This metal is excellent for
welding and produces high quality welded joints. While A36 is a
strong material, it is more easily bent than materials such as
C1018 steel, as it has less yield strength.
