S355J2G3 S355J2G4 h beam steel
1. product description
Normalizing is used to refine the structure of forgings that might have cooled non-uniformly after forged,and considered as a conditioning treatment before final heat treatment.Normalizing temperature for S355J2G3 steel should be carried out between 890℃-950℃. hold suitable time for the steel to be thoroughly heated to complete the ferrite to austenite transformation.Cool in still air.
The alloy content of S355J2G3 steel is very small, its carbon equivalent is 0.345~0.491, and the weldability is good, and preheating is generally not necessary before welding.
However, since the hardening tendency of S355J2G3 steel is slightly larger than that of low carbon steel, preheating measures should be taken to prevent cold cracks when welding at low temperature (such as open-air operation in winter) or when welding on large rigid and thick structures.
The preheating temperature of S355J2G3 steel under different plate thicknesses and different ambient temperatures is shown in the table below.
| Thickness,mm | Preheating temperature at different temperatures |
| <16 | No preheating above -10℃, preheating 100～150℃ below -10℃ |
| 16-24 | No preheating above -5℃, preheating 100～150℃ below -5℃ |
| 25-40 | No preheating above 0℃, preheating 100～150℃ below 0℃ |
| >40 | Preheating 100～150℃ |
S355J2G4 RANGE OF PRODUCTS
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates/Sheets | Plates/Sheets | 0.08-200mm(T)*W*L | Forging,hot rolling and cold rolling | Annealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting |
| Steel Bar | Round Bar,Flat Bar,Square Bar | Φ8-1200mm*L | Forging,hot rolling and cold rolling,Cast | Black,Rough Turning,Shot Blasting, |
| Coil/Strip | Steel Coil/Steel Strip | 0.03-16.0x1200mm | Cold-Rolled&Hot-Rolled | Annealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting |
| Pipes/Tubes | Seamless Pipes/Tubes,Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion,Cold Drawn,Welded | Annealed,Solution and Aging,Q+T,ACID-WASHED |
2. Products Details
| Product Name | S355J2G3 S355J2G4 h beam steel |
| Length |
as your requested |
| Standards | JIS, ASTM, GB, EN,etc. |
| Packing | in bundle,packed with steel belts tightly |
| Surface | Painted;Galvanized;Weld |
| Origin | China |
| Price Term | FOB, CIF, EXW,DDP, etc. |
| Delivery Time | 3-30 days,according to your quantity |
3.Customer Visit:
4.Why choose GNEE:
1. Rich experience: With more than ten years of experience, GNEE has an in-depth understanding of the ever-changing steel market dynamics, enabling us to make informed decisions and provide strategic guidance to our clients.
2. Quality Assurance: We are committed to providing the highest quality steel products. Our stringent quality control measures ensure that every product leaving our factory meets the strictest international standards.
3. Worldwide: Our network spans all continents, facilitating smooth and efficient cross-border transactions. Wherever you are located, GNEE exists to ensure seamless access to quality steel solutions.
4. Customer-centric: At GNEE, customers always come first. We work closely with each client to understand their unique needs and challenges, customizing our products to provide the most suitable solution.
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