| Hot-Rolled Ribbed Steel Bar |
10 ~ 50 |
HRB335/RRB335 HRB400/RRB400 |
GB1499 |
6 ~ 18 |
Various Constructions |
| Carbon Structural Steel |
16 ~ 50 |
Q235 (A/B/C/D) |
GB/T700-1988
GB/T702-1986 |
|
Raw materials of spindle, connection bar of common machine or agricultural equipments / Decorative material in civil house. |
| Quality Carbon Structural Steel |
16 ~ 50 |
45# |
GB/T699-1999
GB/T702-1986 |
|
Broadly used in the manufacture of movable components of steam turbine, compressor and pump, which have replaced carbon penetration steel to product gear, shaft, piston. However, the final product must be hardened by frequent superficial flaming. |
| Alloy Structural Steel |
16 ~ 50 |
40Cr |
GB/T3077-1999
GB/T702-1986 |
|
Used in the manufacture of critical components:-
e.g. gears, sleeves, shafts, cranks, pins, connection bars, blows, screws and inlet air valves. |
| High Tensile Alloy Structural Steel |
16 ~50 |
Q295A |
GB/T1591-1994
GB/T702-1986 |
|
Widely used in the construction structure, wheel rim of tractor, spiral welded tubes, cold bending profile, oil vessel, oil tanks, mobiles, impact components and boilers. |
| Cold Heading Steel |
16 ~ 40 |
ML20 |
GB/T6478-2001
GB/T14981
GB/T702-1986 |
|
Used to fasten mechanical structure
e.g. bolts, screws, worms, rivets and etc. |
| Spring Steel |
16 ~ 36 |
60SizMn |
GB/T1222-1984
GB/T702 |
|
Broadly used to produce cup springs of cars, tractors and trains, spiral springs and other crucial springs, which require tensile properties. |
