GLOBAL COMPANY

WOOSIN STEEL

Technology

Quality Assurance

Thickness Tolerance

(Unit : mm)

Process Thickness(mm) Tolerance Diametrical Variation
HD, RAIP, (S)AIP, SAIP,
PASAIP, PSASAIP 		3.00 Under
3.01~6.00
6.01~10.00
10.01~18.00
18.01 Over		 +0, -0.020
+0, -0.025
+0, -0.030
+0, -0.040
+0, -0.050		 MAX 0.010
MAX 0.013
MAX 0.015
MAX 0.020
MAX 0.025
Form ~6.00
6.01~18.00
18.01 Over		 ±0.05
±0.08
±0.10		 MAX 0.020
MAX 0.025
MAX 0.030
tetragonal, pentagonal,
hexagonal, etc

Surface Defect

(Unit : mm)

Process Thickness(mm)
RAF, (S)AF, SAF, PASAF 0.05 Below
(S)AIP, SAIP, PASAIP, PSASAIP 0.05 Below

Spheroidization Rate

(Unit : %)

Classification Spheroidization Rate
RAF, RAIP, (S)AIP 70±10
SAF, SAIP 80 More than
PASAF, PASAIP, PSASAIP 90 More than

Decarburized Layer Depth

(Unit : mm)

Thickness(mm) FERRITE Decarburization Depth(DMF) TOTAL Decarburization Depth(DMT)
8.00 Under Max 0.02 Max 0.08
8.01~14.00 Max 0.03 Max 0.10
14.01~20.00 Max 0.04 Max 0.12
20.01 Over Max 0.05 Max 0.18