S235JR S235J0 S235J2 S275JR S275J0 S275J2 S355JR S355J0 S355J2 S355K2 Structural Steel
1: S235 steel introduction
Structural steel is a standard construction material made from specific grades of steel and formed in a range of industry-standard cross-sectional shapes (or 'Sections'). Structural steel grades are designed with specific chemical compositions and mechanical properties formulated for particular applications.
There are many examples of European grades of structural steel - for example, S195, S235, S275, S355, S420, and S460. But S235, S275, and S355 are three common structural steel grades used in all manner of construction projects across the EU.
2: S235 Steel equivalent
| Country |
Japan |
Europe |
|
USA |
China |
| Standard |
JIS |
EN10025
2004 |
EN10025
1990 |
DIN 17100 |
ASTM |
GB/T |
| Grade |
SS400 |
S235JR |
1.0038 |
S235JRG2 |
RST37-2 |
A283C |
Q235B |
| |
S235J0 |
1.0114 |
S235J0 |
ST37-3U |
|
Q235C |
| |
S235J2 |
1.0117 |
S235J2G4 |
(ST37-3N) |
A36 |
Q235D |
| |
S275JR |
1.0044 |
S275JR |
ST44-2 |
A570Gr40 |
Q275B |
| |
S275J0 |
1.0143 |
S275J0 |
ST44-3U |
|
Q275C |
| |
S275J2 |
1.0145 |
S275J2G4 |
(ST44-3N) |
|
Q275D |
| |
S355JR |
1.0045 |
S355JR |
|
A572Gr50 |
Q355B |
| |
S355J0 |
1.0553 |
S355J0 |
ST52-3U |
|
Q355C |
| |
S355J2 |
1.0577 |
S355J2G4 |
(ST52-3N) |
|
Q355D |
| |
S355K2 |
1.0596 |
S355K2G4 |
|
|
Q355E |
3: S235 steel chemical composition
| Grade |
C≤ |
Si≤ |
Mn≤ |
P≤ |
S≤ |
| S235JR |
0.17 |
1.4 |
/ |
0.035 |
0.035 |
| S235J0 |
0.17 |
1.4 |
/ |
0.030 |
0.030 |
| S235J2 |
0.17 |
1.4 |
/ |
0.025 |
0.025 |
| S275JR |
0.21 |
1.5 |
/ |
0.035 |
0.035 |
| S275J0 |
0.18 |
1.5 |
/ |
0.030 |
0.030 |
| S275J2 |
0.18 |
1.5 |
/ |
0.025 |
0.025 |
| S355JR |
0.24 |
1.6 |
0.55 |
0.035 |
0.035 |
| S355J0 |
0.20 |
1.6 |
0.55 |
0.030 |
0.030 |
| S355J2 |
0.20 |
1.6 |
0.55 |
0.025 |
0.025 |
| S355K2 |
0.20 |
1.6 |
0.55 |
0.025 |
0.025 |
4: S235 steel mechanical properties
Usually the delivery condition is as rolled or Normalized, if you want to know the properties datas, pls contact our sales contract.
5: S235 steel overviews
| Size |
Round |
Dia 10-500mm |
| Plate/Flat/Block |
Thickness
6mm-500mm |
Width
100mm-2500mm |
| Heat treatment |
As Rolled, Normalized |
| Surface condition |
Black; Peeled; Polished; Machined |
| Delivery condition |
Forged; Hot rolled; Cold drawn |
| Test |
Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, |
| Payment terms |
T/T;L/C;/Money gram/ Paypal |
| Trade terms |
FOB; CIF; C&F; etc.. |
| Delivery time |
30-45 days |
| Application |
Structural steels are used in many ways and their application can be diverse. They are particularly useful because they offer the unique combination of good welding properties with guaranteed strengths. Structural steel is an extremely adaptable product and is often favored by engineers trying to maximize strength or 'S' structure while minimizing its weight.
It will come as no surprise that the construction industry is the biggest consumer of structural steel, where it is used for a number of purposes. Whether a small box lintel is used to carry the load of a structural wall in a residential property or a vast I-beam is bolted in place to hold the road surface on a bridge, structural steel can be specified, designed and fabricated for any type of job. |
6: Delivery condition
For hot forged bar, usually the delivery condition is hot forged, normalized, rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, normalized, Black surface.
For hot rolled plate, usually the delivery condition is hot rolled, normalized, black surface.
Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.
Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged,
hot rolled and
cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Hunan Qilu Industrial has the right to export all
FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.
The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.
Hunan Qilu Industrial CO., LTD
Web: qilusteel.en.made-in-china.com
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