Round Precision Steel Cylinder Pipe GB/T 24187 Cold Drawn For Evaporator
Product Details
hydraulic cylinder pipe
,pneumatic cylinder tubing
GB/T 24187 Cold-Drawn Precision Single Welded Steel Tubes
Spec:
Material:C Si Mn P S
Size Range:OD:3.18-18mm
WT:0.3-1.3mm
General Length:1.5-4m
Tolerance:
According to the following tables or customers’ request.
Table 1 Outer diameter, wall thickness and theoretical weight
| OD/mm | WT/mm | |||||||||
| 0.30 | 0.40 | 0.50 | 0.60 | 0.65 | 0.70 | 0.80 | 0.90 | 1.00 | 1.30 | |
| theoretical weight /(kg/m) | ||||||||||
| 3.18 | 0.0213 | 0.0274 | 0.0330 | |||||||
| 4.00 | 0.0274 | 0.0355 | 0.0432 | 0.0503 | ||||||
| 4.76 | 0.0330 | 0.0430 | 0.0525 | 0.0616 | 0.0659 | 0.0701 | ||||
| 5.00 | 0.0348 | 0.0454 | 0.0555 | 0.0651 | 0.0697 | 0.0742 | ||||
| 6.00 | 0.0422 | 0.0552 | 0.0678 | 0.0799 | 0.0858 | 0.0915 | 0.1026 | 0.1132 | 0.1233 | |
| 6.35 | 0.0448 | 0.0587 | 0.0721 | 0.0851 | 0.0914 | 0.0975 | 0.1095 | 0.1210 | 0.1319 | |
| 7.94 | 0.0565 | 0.0744 | 0.0917 | 0.1086 | 0.1169 | 0.1250 | 0.1409 | 0.1563 | 0.1712 | 0.2129 |
| 8.00 | 0.0570 | 0.0750 | 0.0925 | 0.1095 | 0.1178 | 0.1260 | 0.1421 | 0.1576 | 0.1726 | 0.2148 |
| 9.53 | 0.0683 | 0.0901 | 0.1113 | 0.1321 | 0.1423 | 0.1524 | 0.1722 | 0.1915 | 0.2104 | 0.2639 |
| 10.00 | 0.0718 | 0.0947 | 0.1171 | 0.1391 | 0.1499 | 0.1605 | 0.1815 | 0.2020 | 0.2220 | 0.2789 |
| 12.00 | 0.0866 | 0.1144 | 0.1418 | 0.1687 | 0.1819 | 0.1951 | 0.2210 | 0.2464 | 0.2713 | 0.3430 |
| 12.70 | 0.0917 | 0.1213 | 0.1504 | 0.1790 | 0.1932 | 0.2072 | 0.2348 | 0.2619 | 0.2885 | 0.3655 |
| 14.00 | 0.1014 | 0.1342 | 0.1665 | 0.1983 | 0.2140 | 0.2296 | 0.2604 | 0.2908 | 0.3206 | 0.4072 |
| 15.88 | 0.1153 | 0.1527 | 0.1896 | 0.2261 | 0.2441 | 0.2621 | 0.2975 | 0.3325 | 0.3670 | 0.4674 |
| 16.00 | 0.1162 | 0.1539 | 0.1911 | 0.2279 | 0.2461 | 0.2641 | 0.3000 | 0.3352 | 0.3699 | 0.4713 |
| 18.00 | 0.1310 | 0.1736 | 0.2158 | 0.2575 | 0.2781 | 0.2987 | 0.3393 | 0.3795 | 0.4192 | 0.5354 |
| Theoretical weight of no additional coating, density of steel is 7.85 kg/ |
||||||||||
Table2 Allowable deviation of outer diameter of steel pipe
| Outer diameter | Common precision | High precision |
| ＜4.76 | ±0.08 | ±0.05 |
| 4.76-8.00 | ±0.12 | ±0.07 |
| ＞8.00-12.00 | ±0.16 | ±0.10 |
| ＞12.00 | ±0.20 | ±0.12 |
Table 3 Permissible deviation of steel tube wall thickness
| Wall thickness | Permissible deviation |
| ＜0.70 | ±0.05 |
| ≥0.70 | ±0.07 |
Table 4 Allowable deviation of specified length of steel pipe
| Length | Allowable deviation |
| ≤2000 |
+4 0 |
| ＞2000-5000 |
+7 0 |
| ＞5000-8000 |
+10 0 |
TABLE 5 Chemical Composition Of Steel Strip (Mass Fraction)%
| Category | C | Si | Mn | P | S |
| Cold rolled low carbon steel strip | ≤0.08 | ≤0.03 | ≤0.30 | ≤0.030 | ≤0.030 |
| Cold rolled ultra low carbon steel strip | ≤0.008 | ≤0.03 | ≤0.25 | ≤0.020 | ≤0.030 |
TABLE 6 Mechanical Properties Of Cold Rolled Low Carbon Steel Strip
|
Thickness /mm |
Tensile Strength
|
Yield Strength
|
Elongation A/% |
| 0.25~＜0.35 | ≥270 | ≥32 | |
| 0.35~＜0.50 | ≥34 | ||
| ≥0.50 | ≥36 | ||
|
a Replace with b Sample type of sample number D14 in GB/T 228-2002. |
|||
TABLE 7 Mechanical Properties Of Cold Rolled Ultra-low Carbon Steel Strip
|
Thickness /mm |
Tensile Strength
|
Yield Strength
|
Elongation A/% |
| ≤0.50 | ≥280 | 130~250 | ≥38 |
| ＞0.50 | ≥40 | ||
|
a Replace with b Sample type of sample number P14 in GB/T 228-2002. |
|||
TABLE 8 Mechanical properties of steel pipe
| Category |
Tensile Strength
|
Yield Strength
|
Elongation A/% |
| Ordinary steel pipe(MA) | ≥270 | ≥180 | ≥14 |
| Soft steel tube(MB) | ≥230 | 150~220 | ≥35 |
|
a Replace with b Sample type of sample number S7 in GB/T 228-2002. |
|||
Characteristic:
QUALITY ASSURANCE
Good surface quality
Good OD and ID tolerance controlled to Technical Standard
Stable quality
100% Eddy Current Test
Processing:W-H W-C
Widely used in the field of:Condenser, evaporator, cooler tube fuel pipe of refrigeration,automobile and electric appliance industrial
Product show:
-
DIN2391 Precision Seamless Steel Tube
Product Name: DIN2391 Cold Drawn Precision Seamless Steel Tube Material: ST35, ST45, ST52 Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m Delivery Condition: BK, BKW, BKS, GBK, NBK Application: For high precision purpose, auto industry, like manipulator, Shock Absorber, Transmission Shaft, Steering Gear, Car Frame, etc. Stable Quality with Comeptitive Price. NBK(Bright Annealing) Heat Treatment, Surface is clean and smooth, without oxide scale Good -
SAE4130 Honed Hydraulic Cylinder Seamless Steel Tube
Product Name: SAE4130 ASTM A519 CW / SR Seamless Mechanical Tubing Honing Round Steel Tubing Size Range: OD: 40-500mm, WT: 1-30mm, Length: 5.8m/6m, maximal 11.8m Product Name ASTM A519 CW / SR Seamless Cold Drawn Honing Steel Tubing Material St35, St45, St52, E355, E255, 1020, 1045, 4130 Delivery Condition CW, SR Standard DIN2391 / EN10305-1 / ASTM A519 / GB3639 Size Range OD: 40-500mm, WT: 1-30mm Application High precision purpose, auto parts, oil cylinder, etc Round Billet -
E255 / St45 / 1020 Bright Annealed Cold Rolled Steel Tube
Product Name: E255 / St45 / 1020 Bright Annealing Precision Cold Rolled High Precision Seamless Steel Pipe Material: E235 , E255 , E355, St35, St45, St52, 1010, 1020, 4130 Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m Delivery Condition: +C, +LC, +SR, +A, +N Application: Fuel injection Pipe, Oil flow pipeline Automobile and motorcycle Shock Absorber Pipe Seat lifter Pipe Hydrau-cylinder Pipe Bicycle frame steel pipes Mechanical steel pipes for auto and -
Black Drill Rod Seamless Drill Pipe High Tolerance 3 - 11.8m Length 2 - 15m WT Size
XJY750 XJY850 wire-line drill pipes , Seamless cold drawing pipes for drill rod 1. Product Name: XJY850 Seamless Steel Tubing wire-line drill rods 2. Size Range: OD: 45-114.3m, WT: 2-15mm, Length:3m,3.06m 5.8m/6m, maximal 11.8m 3. Stable Quality with Comeptitive Price 4. Protective Atmosphere Heat Treatment, Surface is clean and smooth, without oxide scale 5. Good Extending and Bending Ability, Longer Work Life Product Name Seamless Steel Tubing wire-line drill rods Material
