What Technical Standard for Bearing Steel Tubes?

Apr 25,/2022

Bearings Steel Tubes are supplied by TORICH with the following technical standard:
52100
S130000
NS13046
ISO683
S130000/S130346-1

GB/T4146
GB/T 18254
GB/T 3203
ASTM A295
JIS G4805
DIN17230
NF A35-565
SKFD33
GOST801-78

While the GCr15 steel properties is orientated from Chinese Bearing Steel Tube technical standard of GB/T 18254, which is a bearing steel grade similar to 100Cr6, which is from ISO683 technical standard.