Q195 Q235 Q345 Low Carbon Steel Round Bar
Q195 Q235 Q345 low carbon steel round bar ISO, IQNet certificate
Q195 Q235 Q345 steel round bar
DIA:20mm~420mm
Length:6-11m
ISO, IQNet certificate
Supply quality certificate
1. high quality round steel bar:
| Article: | high quality round steel bar |
| Grade: | S45CB, S20CB, 20Cr, 45Cr, SCM440, SCM420 as customized |
| Size: | 16-310mm |
| Length: | 5.8m/6m fixed length, or as customized |
| MOQ: | 25MT per size |
| Remark: | Chamfering and straightness |
| Packing: | Around 3MT per bundle, in bulk or container |
2. Chemical Composition:
| Grade | C | Si | Mn | Cr | Mo | P | S | B |
| SCM440 | 0.4-0.45 | 0.1-0.3 | 0.65-0.80 | 0.9-1.1 | 0.15-0.25 | Max.0.025 | Max.0.025 | |
| SCM420 | 0.18-0.23 | 0.15-0.35 | 0.60-0.85 | 0.9-1.2 | 0.15-0.30 | Max. 0.03 | Max. 0.015 | |
| S45CB | 0.43-0.50 | 0.15-0.30 | 0.60-0.90 | Max. 0.035 | Max. 0.035 | 0.001-0.004 |
3. Aplication :
Hot rolled round steel bars are widely used in machinery making, autombile making, railway, mine machinery, petoleum machinry, agricultural machinery and civil archtectue such as all kinds of shafts, screws, connecting rods, hardware tools, gears, standard parts, spanners fasteners, structural parts for automobile and agricultural machinery, outer and iner sleeves, rollers and balls for bearing making.
4. Processing flow of hot rolled round steel bars:
| Sintering | blast furnace | RH pretreatment of hot metal | metal mixer | converter | LF refining | VD | billet continuous casting machine | heating furnace | rolling | finishing | test |
finished products |
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