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Materials |
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Chrome Steel |
SAE 52100 |
DIN 100Cr6 / B.S. En 31 |
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Carbon Steel |
SAE 1010 |
DIN. 1.1121 |
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SAE 1086 |
- |
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300 Series Stainless Steel |
AISI 302 |
- |
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AISI 304 |
DIN 1.4301 / B.S. 304 S 15 |
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AISI 304 L |
DIN 1.4306 / B.S. 304 S 12 |
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AISI 316 |
DIN 1.4401 / B.S. 316 S 16 |
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AISI 316 L |
DIN 1.4404 / B.S. 316 S 12 |
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400 Series Stainless Steel |
AISI 420 |
DIN 1.4021 / B.S. 420 S 37 |
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AISI 420 B |
DIN X30Cr13 |
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AISI 420 C |
DIN 1.4016 / B.S. 430 S 15 |
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AISI 430 L |
DIN 1.4016 / B.S. 430 S 15 |
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AISI 440 L |
DIN 1.4125 |
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S2-Tool Steel (Rockbit) |
AISI S-2 |
ASTM A681 |
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All 300 & 400 series stainless steel |
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STANDARDS & TOLERANCES ( ISO 3290 - 1998 ) |
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Grade |
Variation of ball diameter |
Deviation from spherical |
Surface roughness |
Lot diameter Variation |
Gauge Interval |
Preferred gauges |
Subgauge Interval |
Subgauges |
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VDws Max. |
form tDw Max. |
Ra Max. |
VDwL Max. |
IG |
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G 3 |
0.08 |
0.08 |
0.01 |
0.1 |
0.5 |
-5,-0.5 |
0,+0.5,.+5 |
0.1 |
-0.3 |
0,+0.1+0.2 |
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G 5 |
0.13 |
0.13 |
0.014 |
0.25 |
1 |
-5, -1 |
0,+1,.+5 |
0.2 |
-0.6 |
0,+0.2+0.4 |
|
G 10 |
0.25 |
0.25 |
0.02 |
0.5 |
1 |
-9, -1 |
0,+1,.+9 |
0.2 |
-0.6 |
0,+0.2+0.4 |
|
G 16 |
0.4 |
0.4 |
0.025 |
0.8 |
2 |
-10, -2 |
0,+2,.+10 |
0.4 |
-1.2 |
0,+0.4+0.8 |
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G 20 |
0.5 |
0.5 |
0.032 |
1 |
2 |
-10, -2 |
0,+2,.+10 |
0.4 |
-1.2 |
0,+0.4+0.8 |
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G 24 |
0.6 |
0.6 |
0.04 |
1.2 |
2 |
-12, -2 |
0,+2,.+12 |
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G 28 |
0.7 |
0.7 |
0.05 |
1.4 |
2 |
-12, -2 |
0,+2,.+12 |
0.4 |
-0.8,-0.4 |
0,+0.4+0.8 |
|
G 40 |
1 |
1 |
0.06 |
2 |
4 |
-16, -4 |
0,+4,.+16 |
0.8 |
-1.6-0.8 |
0,+0.8+1.6 |
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G 60 |
1.5 |
1.5 |
0.08 |
3 |
6 |
-18, -6 |
0,+6,.+18 |
1.2 |
-2.4,-1.2 |
0,+1.2,+2.4 |
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G 100 |
2.5 |
2.5 |
0.1 |
5 |
10 |
-40,-10 |
0,+10,.+40 |
2 |
-6 |
0,+2,+4 |
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G 200 |
5 |
5 |
0.15 |
10 |
15 |
-60,-15 |
0,+15,.+60 |
3 |
-9 |
0,+3,+6 |
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G 500 |
12.5 |
12.5 |
25 |
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G 1000 |
25 |
25 |
50 |
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According to AFBMA Standards |
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