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ASTM A36 ASME SA36
Hot-rolled A36 round steel is a common hot-rolled steel product, and its material standard is ASTM A36.
Material: Hot-rolled A36 round steel is made of carbon steel, and its chemical composition mainly contains carbon, manganese, sulfur and phosphorus. The low carbon content of A36 steel gives it good plasticity and machinability.
Strength and hardness: Hot rolled A36 round steel has moderate strength and hardness for a variety of application requirements. Its yield strength is about 250MPa and its tensile strength is about 400-550MPa.
Processing technology: Hot-rolled A36 round steel is heated at high temperature and processed by special rolling technology on the roller table unit. The process makes it gradually deform from billet or bar shape to round shape.
Features:
Good plasticity and machinability: Due to its low carbon content, hot-rolled A36 round steel is easy to plastic deformation and processing. It can be further changed in shape and size by means of cold working.
Excellent weldability: Hot rolled A36 round steel has good weldability and can be joined and assembled by common welding methods.
Good corrosion resistance: Although hot-rolled A36 round steel does not have advanced corrosion resistance like stainless steel, it has good corrosion resistance in ordinary environments.
Application: Hot rolled A36 round steel is widely used in construction, machinery manufacturing, Bridges, ships, automobile manufacturing and other fields. It is often used to make components, shafts, bearings, drive shafts, welding parts and so on.
It should be noted that when selecting and using hot-rolled A36 round steel, it should be confirmed according to the specific project needs and technical requirements, and designed and used in accordance with relevant standards and specifications.
CHEMICAL COMPOSITION | |
| Element | Percentage |
| C | 0.26 |
| Cu | 0.2 |
| Fe | 99 |
| Mn | 0.75 |
| P | 0.04 max |
| S | 0.05 max |
MECHANICAL INFORMATION | ||
| Imperial | Metric | |
| Density | 0.282 lb/in3 | 7.8 g/cc |
| Ultimate Tensile Strength | 58,000psi | 400 MPa |
| Yield Tensile Strength | 47,700psi | 315 MPa |
| Shear Strength | 43,500psi | 300 MPa |
| Melting Point | 2,590 - 2,670°F | 1,420 - 1,460°C |
Finishing rolling process:
Finishing rolling is a process to obtain higher precision and better surface quality by rolling the heat-treated seamless steel pipe multiple times. The specific steps include: heat treatment - pickling - cooling - finishing rolling - sizing - cutting - length - inspection - packaging. Finishing rolling can improve the precision, surface quality and mechanical properties of steel pipe.
Cold drawing process:
Cold drawing is a process of drawing the heat-treated seamless steel pipe one by one in a cold state to obtain high precision, high surface quality and high mechanical properties. The specific steps include: heat treatment - pickling - cooling - cold drawing - deoxygenation - wet pickling - cold water washing - leveling - straightening - pickling - cold water washing - oxide skin - cold drawing - sizing - straightening - pickling - cold water washing - deoxygenation - polishing - inspection - packaging. Cold drawing can significantly improve the dimensional accuracy, surface quality and mechanical properties of steel pipes.
Hot rolling production process:
Hot rolling is the process of heating the blank to a certain temperature, and then forming it into seamless steel pipe through multiple rolls. The specific steps include: heating - rolling - roll probe - sizing - cooling - trimming - rod breaking - inspection - packaging. Hot rolling can produce seamless steel pipes with large diameters and wall thickness, but the accuracy and surface quality are not as good as fine rolling and cold drawing.
These three processes have different applications in the production of seamless precision steel pipes, and the specific choice depends on the required dimensional accuracy, surface quality and mechanical properties.
Hot-rolled A36 round steel is a common hot-rolled steel product, and its material standard is ASTM A36.
Material: Hot-rolled A36 round steel is made of carbon steel, and its chemical composition mainly contains carbon, manganese, sulfur and phosphorus. The low carbon content of A36 steel gives it good plasticity and machinability.
Strength and hardness: Hot rolled A36 round steel has moderate strength and hardness for a variety of application requirements. Its yield strength is about 250MPa and its tensile strength is about 400-550MPa.
Processing technology: Hot-rolled A36 round steel is heated at high temperature and processed by special rolling technology on the roller table unit. The process makes it gradually deform from billet or bar shape to round shape.
Features:
Good plasticity and machinability: Due to its low carbon content, hot-rolled A36 round steel is easy to plastic deformation and processing. It can be further changed in shape and size by means of cold working.
Excellent weldability: Hot rolled A36 round steel has good weldability and can be joined and assembled by common welding methods.
Good corrosion resistance: Although hot-rolled A36 round steel does not have advanced corrosion resistance like stainless steel, it has good corrosion resistance in ordinary environments.
Application: Hot rolled A36 round steel is widely used in construction, machinery manufacturing, Bridges, ships, automobile manufacturing and other fields. It is often used to make components, shafts, bearings, drive shafts, welding parts and so on.
It should be noted that when selecting and using hot-rolled A36 round steel, it should be confirmed according to the specific project needs and technical requirements, and designed and used in accordance with relevant standards and specifications.
CHEMICAL COMPOSITION | |
| Element | Percentage |
| C | 0.26 |
| Cu | 0.2 |
| Fe | 99 |
| Mn | 0.75 |
| P | 0.04 max |
| S | 0.05 max |
MECHANICAL INFORMATION | ||
| Imperial | Metric | |
| Density | 0.282 lb/in3 | 7.8 g/cc |
| Ultimate Tensile Strength | 58,000psi | 400 MPa |
| Yield Tensile Strength | 47,700psi | 315 MPa |
| Shear Strength | 43,500psi | 300 MPa |
| Melting Point | 2,590 - 2,670°F | 1,420 - 1,460°C |
Finishing rolling process:
Finishing rolling is a process to obtain higher precision and better surface quality by rolling the heat-treated seamless steel pipe multiple times. The specific steps include: heat treatment - pickling - cooling - finishing rolling - sizing - cutting - length - inspection - packaging. Finishing rolling can improve the precision, surface quality and mechanical properties of steel pipe.
Cold drawing process:
Cold drawing is a process of drawing the heat-treated seamless steel pipe one by one in a cold state to obtain high precision, high surface quality and high mechanical properties. The specific steps include: heat treatment - pickling - cooling - cold drawing - deoxygenation - wet pickling - cold water washing - leveling - straightening - pickling - cold water washing - oxide skin - cold drawing - sizing - straightening - pickling - cold water washing - deoxygenation - polishing - inspection - packaging. Cold drawing can significantly improve the dimensional accuracy, surface quality and mechanical properties of steel pipes.
Hot rolling production process:
Hot rolling is the process of heating the blank to a certain temperature, and then forming it into seamless steel pipe through multiple rolls. The specific steps include: heating - rolling - roll probe - sizing - cooling - trimming - rod breaking - inspection - packaging. Hot rolling can produce seamless steel pipes with large diameters and wall thickness, but the accuracy and surface quality are not as good as fine rolling and cold drawing.
These three processes have different applications in the production of seamless precision steel pipes, and the specific choice depends on the required dimensional accuracy, surface quality and mechanical properties.
