Tel : 0086-0371-86172891
Tel : 0086-0371-86172891
SWCH22A carbon steel wire rods is Aluminum killed steel . SWCH22A is in the Japanese Industrial Standard JIS G3507 Part 2 : Wires .
Standard : JIS G3507
Grade : SWCH22A
Brand : JW steel
Size of wire diameter : 5.5-34mm
SWCH22A annealing steel wire rods process methods:
(1)Process D : The Process D means a process wherein wire rods are finished by cold working .
(1)Process DA : The Process D means a process wherein wire having been cold worked are annealed and further finished by cold working or a process wherein wire rods are finished by cold working after annealing .
The steel wire rods SWCH22A shall be manufactures by process D or DA . However ,manufacturing processes other than given above may be selected by agreement between the purchaser and the supplier .
SWCH22A steel wire rods for screws mechanical properties :
|
Grade |
process methods |
Division of wire diameter/mm |
Tensile strength MPa |
Reduction of area % |
(Informative)Hardness HRB |
|
SWCH22A |
process D |
3~4 |
≥690 |
≥45 |
- |
|
4~5 |
≥570 |
||||
|
＞5 |
≥470 |
≤98 |
|||
|
process DA |
- |
≥440 |
≥55 |
≤88 |
Remarks:
For wires of 20mm or over in wire diameter,the reduction of area shall be value 5 lower than the value in table 2 .For those of diameter 3mm or less,the reduction of area is not specified .
SWCH22A cold heading steel wire rods application:
SWCH22A steel wire rods for cold heading is used for the manufacture of various types of screws such as bolts,nuts,rivets,machine screws and tapping screws and various parts by cold heading .
Related Link : SWCH41K carbon steel wire rods for cold heading , SWCH40K carbon steel wire rods for cold heading , SWCH38K carbon steel wire rods for cold heading , SWCH35K carbon steel wire rods for cold heading
