Size | ID*OD | (mm) | These sizes have stock, | ||
40*50 | 90*110 | 140*170 | 60*45 | 120*140 | 180*205 |
40*55 | 95*110 | 145*170 | 70*57 | 125*140 | 90*105 |
50*60 | 95*115 | 150*170 | 90*80 | 125*145 | 70*85 |
50*65 | 100*110 | 150*175 | 102*90 | 125*150 | 70*90 |
55*70 | 100*114 | 150*180 | 50*40 | 130*150 | 75*90 |
60*70 | 100*115 | 155*180 | 55*40 | 130*155 | 140*165 |
60*75 | 100*120 | 160*175 | 180*210 | 130*160 | 70*80 |
60*78 | 100*125 | 160*180 | 180*215 | 135*160 | 70*82 |
63*73 | 105*125 | 160*185 | 180*220 | 140*160 | 165*205 |
63*75 | 110*125 | 160*190 | 185*205 | 80*100 | 170*200 |
63*76 | 110*130 | 160*195 | 185*215 | 80*92 | 85*100 |
63*78 | 115*130 | 165*190 | 185*220 | 80*95 | 180*200 |
65*80 | 115*135 | 165*140 | 140*120 | 146*125 | 30*25 |
OD | GB/T3639 | DIN2391 (EN10305) | Our Tolerance | Best Quality | |
31-40mm | ±0.15mm | ±0.15mm | ±0.05mm | ±0.03mm | |
41-50mm | ±0.20mm | ±0.20mm | ±0.05mm | ±0.03mm | |
51-60mm | ±0.25mm | ±0.25mm | ±0.08mm | ±0.03mm | |
61-70mm | ±0.30mm | ±0.30mm | ±0.10mm | ±0.05mm | |
71-160mm | ±0.30mm | ±0.30mm | ±0.10mm | ±0.05mm | |
160mm-230mm | ±0.50mm | ±0.50mm | ±0.40mm | ||
Tolerance in WT | ±0.12mm | ±0.10mm | ±0.05mm | ±0.03mm | |
PROCESS | |||||
Process | Diameter | Length | |||
Cold Rolled | 30-100mm | ≤10 m | |||
Cold Draw | 30-250mm | ≤10 m | |||
Honing | 40-500mm | ≤10 m | |||
Skived burnished | 40-400mm | ≤76m | |||
HONED OR SRB TUBE TOLERANCE | |||||
Inner Diameter | H8 | H9 | H10 | ||
30mm | ±0.033 | ±0.052 | ±0.084 | 5-30mm | |
30-50mm | ±0.039 | ±0.062 | ±0.100 | ±0.080 | |
50-80mm | ±0.046 | ±0.074 | ±0.120 | ||
80-120mm | ±0.054 | ±0.087 | ±0.140 | ||
120-180mm | ±0.063 | ±0.100 | ±0.160 | ||
180-250mm | ±0.072 | ±0.115 | ±0.185 | ||
250-315mm | ±0.081 | ±0.130 | ±0.210 |