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Similar name: honing tube, honed bore tube, smooth bore tube, cylinder tube, skived bore tube, grinding tube Standard: ASTM A519, DIN2391 Grade:ST52,ST52.3,CK45,Q345B,EN355,16Mn,STKM13C,SAE1020/1026/4140,42CrMo,TP304/316 etc. OD metric size: 30 to 2000 mm OD imperial size: 1.5" to 50" (inch) Length: max 20 Meter Straightness: <0.5 mm/m Tolerance OD: DIN 2391 Tolerance ID: ISO H8, H9, H10 Roughness (Ra): <0.8 Application: construction machinery, metallurgical machinery, plastic machinery, mining machinery, road construction machinery, hydraulic and pneumatic cylinders Other request can be discussed. |
Dimension Available:
|
Manufacturing Process |
Tube ID |
Length |
Straightness |
Dimensional Accuracy |
Tolerance on ID |
Inner Bore Roughness |
|
honing |
Φ40-800mm |
≤13m |
0.2-0.3mm |
H8~H9 |
±8% |
≦0.8
um |
Chemical Composition:
|
grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
V |
Al |
|
1020 |
0.17-0.23 |
0.17-0.37 |
0.35-0.65 |
≦0.035 |
≦0.035 |
≦0.25 |
≦0.30 |
≦0.25 |
- |
- |
|
C45 |
0.42-0.50 |
0.17-0.37 |
0.50-0.80 |
≦0.035 |
≦0.035 |
≦0.25 |
≦0.30 |
≦0.25 |
- |
- |
|
16Mn |
0.13-0.19 |
0.20-0.60 |
1.20-1.60 |
≦0.030 |
≦0.030 |
≦0.030 |
≦0.30 |
≦0.25 |
- |
- |
|
27SiMn |
0.24-0.32 |
1.10-1.40 |
1.10-1.40 |
≦0.035 |
≦0.035 |
≦
0.30 |
≦0.30 |
≦0.20 |
- |
- |
|
ST52 |
≦0.20 |
≦0.50 |
≦1.70 |
≦0.035 |
≦0.035 |
≦0.30 |
≦0.50 |
≦0.30 |
≦0.15 |
- |
|
ST52.3 |
≦0.18 |
≦0.50 |
≦1.70 |
≦0.030 |
≦0.25 |
≦0.30 |
≦0.50 |
≦0.30 |
≦0.15 |
≥0.015 |
Mechanical Property
|
Grade |
Cold finished (hard) (BK) |
Cold finished (hard) (BK+S) |
Hardness |
Impact Value (-20°C) |
|||
|
T.S bN/mm2 |
Elongation 85% |
T.S bN/mm2 |
Y.S SN/mm2 |
Elongation 85% |
|||
|
1020 |
≥550 |
≥8 |
≥520 |
≥400 |
≥15 |
170 |
-- |
|
C45 |
≥680 |
≥5 |
≥630 |
≥520 |
≥12 |
190 |
-- |
|
16Mn |
≥640 |
≥5 |
≥600 |
≥520 |
≥14 |
160 |
-- |
|
27SiMn |
≥780 |
≥5 |
≥700 |
≥580 |
≥10 |
220 |
-- |
|
ST52 |
≥660 |
≥8 |
≥620 |
≥520 |
≥15 |
190 |
-- |
|
ST52.3 |
≥660 |
≥8 |
≥620 |
≥520 |
≥15 |
190 |
≥27 |
Size Tolerance (mm) :
|
ID size |
ID Tolerance |
WT Tolerance |
||||
|
H7 |
H8 |
H9 |
H10 |
H11 |
||
|
30 |
+0.0210 |
+0.0330 |
+0.0520 |
+0.0840 |
+0.1300 |
±5% |
|
>30-50 |
+0.0250 |
+0.0390 |
+0.0620 |
+0.1000 |
+0.1600 |
|
|
>50-80 |
+0.0300 |
+0.0460 |
+0.0740 |
+0.1200 |
+0.1900 |
|
|
>80-120 |
+0.0350 |
+0.0540 |
+0.0870 |
+0.1400 |
+0.2200 |
|
|
>120-180 |
+0.0400 |
+0.0630 |
+0.1000 |
+0.1600 |
+0.2500 |
|
|
>180-250 |
+0.0460 |
+0.072 |
+0.1150 |
+0.1850 |
+0.2900 |
|
|
>250-315 |
+0.0520 |
+0.0810 |
+0.1300 |
+0.2100 |
+0.3200 |
|
|
>315-800 |
+0.0570 |
+0.0890 |
+0.1400 |
+0.2300 |
+0.3600 |
|
Size Tolerance (mm) :
|
OD |
Tolerance |
OD |
Tolerance |
|
≤Φ40 |
±0.15 |
Φ160～200 |
±0.80 |
|
Φ40～60 |
±0.25 |
Φ200～240 |
±1.00 |
|
Φ60～80 |
±0.30 |
Φ240～340 |
±1.50 |
|
Φ80～100 |
±0.40 |
Φ340～440 |
±2.00 |
|
Φ100～160 |
±0.50 |
Φ440～520 |
±2.50 |