Tel : 0086-021-60880117
Tel : 0086-021-60880117
SWCH12K carbon steel wire rods is killed steel . SWCH12K is in the Japanese Industrial Standard JIS G3507 Part 2 : Wires .
Standard : JIS G3507
Grade : SWCH12K
Brand : Royal
Size of wire diameter : 5.5-34mm
SWCH12K 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 SWCH12K 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 .
SWCH12K steel wire rods for screws mechanical properties :
|
Grade |
process methods |
Division of wire diameter/mm |
Tensile strength MPa |
Reduction of area % |
(Informative)Hardness HRB |
|
SWCH12K |
process D |
≤3 |
≤590 |
- |
- |
|
3~4 |
≤490 |
≤45 |
|||
|
4~5 |
≤410 |
||||
|
＞5 |
≤360 |
≤90 |
|||
|
process DA |
- |
≤340 |
≤55 |
≤83 |
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 .
SWCH12K cold heading steel wire rods application:
SWCH12K 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:JIS G3508-2:SWRCHB323,SWCH10K,SWCH15K,SWCH16K,SWCH17K,SWCH18K,aafa15c06b71d6b928c39b6b17B27195,SWCH22K,SWCH24K,SWCH25K,SWCH27K,SWCH30K,SWCH33K,SWCH35K,SWCH38K,SWCH40K,SWCH41K,SWCH43K,SWCH45,SWCH48K,SWCH50K