Annealing Steel Wire Quality Standard：
|
Mechanical Property |
Tensile Strength Kgf/mm |
Elongation % |
Reduction of Area % |
Hardness HRB |
Spheroidized % |
Cold Upsetting |
|
SWCH6A |
31~42 |
≥10 |
— |
— |
≥80 |
1/3passed |
|
SWCH10A |
33~44 |
≥10 |
— |
— |
≥80 |
1/3passed |
|
SWCH15A |
36~46 |
≥10 |
— |
— |
≥80 |
1/3passed |
|
SWCH18A |
42~52 |
≥10 |
— |
— |
≥80 |
1/3passed |
|
SWCH22A |
42~52 |
≥10 |
— |
— |
≥80 |
1/3passed |
|
10B21 |
43~52 |
≥10 |
≥65 |
≤81 |
≥80 |
1/3passed |
|
10B33 |
46~56 |
≥10 |
≥60 |
≤86 |
≥80 |
1/3passed |
|
SCM435 |
51~59 |
≥10 |
≥60 |
≤89 |
≥80 |
1/3passed |
|
SCM440 |
52~60 |
≥10 |
≥60 |
≤90 |
≥80 |
1/3passed |
|
SWCH35K |
47~56 |
≥10 |
≥60 |
≤86 |
≥80 |
1/3passed |
|
SWCH38K |
49~57 |
≥10 |
≥60 |
≤86 |
≥80 |
1/3passed |
|
SWCH45K |
51~58 |
≥10 |
≥60 |
≤88 |
≥80 |
1/3passed |
|
ML40Cr |
51~61 |
≥10 |
≥60 |
≤91 |
≥80 |
1/3passed |
