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Honed Tube
E355 +SR Seamless Honed Tube
1. Steel grade: ST52, ST52.3, 20#, 45#, 4140, 16Mn, 42CrMo, Q345B, Q345D, Stainless Steel 304/316, Duplex 2205, Alloy Steel etc.
2. ID: 20mm-1500mm
3. Length: max 13m
4. Straightness: 0.5/1000
5. Roughness(Ra): 0.2-0.4u
6. Tolerance EXT: DIN2391
7. Tolerance INT: ISO H8
8. Type: cold drawing, cold rolling, honed
9. Conservation: anti rust oiled inside and outside surface, plastic caps in both ends.
10. Package: bundle with steel strip and knitting strip, or wooden case.
|
Inside Dia (mm) |
ID Tolerance (mm) |
WT Tolerance (mm) |
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|
H7 |
H8 |
H9 |
H10 |
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|
≤30 |
+0.021/0 |
+0.033/0 |
+0.052/0 |
+0.084/0 |
±7.5% >210mm ±10% |
|
|
30 - ≤50 |
+0.025/0 |
+0.039/0 |
+0.062/0 |
+0.100/0 |
||
|
50 - ≤80 |
+0.030/0 |
+0.046/0 |
+0.074/0 |
+0.120/0 |
||
|
80 - ≤120 |
+0.035/0 |
+0.054/0 |
+0.087/0 |
+0.140/0 |
||
|
120 - ≤180 |
+0.040/0 |
+0.063/0 |
+0.100/0 |
+0.160/0 |
||
|
180 - ≤250 |
+0.046/0 |
+0.072/0 |
+0.115/0 |
+0.185/0 |
||
|
250 - ≤315 |
+0.052/0 |
+0.081/0 |
+0.130/0 |
+0.210/0 |
||
|
315 - ≤700 |
+0.057/0 |
+0.089/0 |
+0.140/0 |
+0.230/0 |
||
|
Steel Grade |
Chemical composition % |
||||||
|
C |
Si |
Mn |
P |
S |
Al |
||
|
≤ |
≥ |
||||||
|
20# |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
/ |
|
|
45# |
0.42-0.50 |
0.17-0.37 |
0.50-0.80 |
0.035 |
0.035 |
/ |
|
|
Q345B |
≤0.2 |
≤0.5 |
1.00-1.60 |
0.03 |
0.03 |
/ |
|
|
Q345D |
≤0.2 |
≤0.5 |
1.00-1.60 |
0.03 |
0.03 |
0.015 |
|
|
25Mn |
0.22-0.29 |
0.17-0.37 |
0.70-1.00 |
0.035 |
0.035 |
/ |
|
|
27SiMn |
0.24-0.32 |
1.10-1.40 |
1.10-1.40 |
0.035 |
0.035 |
/ |
|
|
ST52 |
≤0.22 |
≤0.55 |
≤1.6 |
0.025 |
0.025 |
/ |
|
|
SAE1026 |
0.22-0.28 |
0.15-0.35 |
0.60-0.90 |
0.04 |
0.05 |
/ |
|
|
Delivery Condition |
cold finished (hard) (BK) |
cold drawn and stress-relieved (BK+S) |
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|
Steel Grade |
Tensile Strength (Mpa) |
Elongation (%) |
Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
|
|
20# |
≥550 |
≥8 |
≥520 |
≥375 |
≥15 |
|
|
45# |
≥640 |
≥5 |
≥600 |
≥520 |
≥10 |
|
|
16Mn |
≥640 |
≥5 |
≥600 |
≥520 |
≥14 |
|
|
25Mn |
≥640 |
≥5 |
≥600 |
≥510 |
≥15 |
|
|
27SiMn |
≥800 |
≥5 |
≥760 |
≥610 |
≥10 |
|
|
ST52 |
≥640 |
≥5 |
≥600 |
≥520 |
≥14 |
|
|
SAE1026 |
≥640 |
≥5 |
≥600 |
≥510 |
≥15 |
|
