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Precision Steel Hydraulic Cylinder Tube GB/T 24187 Cold Drawn For Evaporator

Minimum Order Quantity : 5 Ton Price : USD 600-1000/Ton
Packaging Details : Packing in wooden box,hexagonal bundles or other seaworthy ways. Delivery Time : 30 days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 50000 Ton/Year
Place of Origin: Zhejiang China Brand Name: TORICH
Certification: ISO 9001 ISO 14001 TS 16949 Model Number: GB/T 24187

Detail Information

Product Name:: TORCIH GB 18248 37Mn 30CrMo Seamless Hydraulic Cylinder Tube For Gas Cylinder Material:: C Si Mn P S
Surface:: Oiled Application:: Condenser, Evaporator, Cooler Tube Fuel Pipe Of Refrigeration、automobile And Electric Appliance Industrial
Shape:: Round OD:: 4-1200mm
WT:: 0.3-200mm Length:: 1.5-6m
High Light:

honed hydraulic cylinder tubing

,

hydraulic cylinder pipe

Product Description

TORICH 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/GB/T 24187 Cold Drawn Precision Steel Tube Welded Steel Pipes Length 1.5m - 4m

 

 

 

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

GB/T 24187 Cold Drawn Precision Steel Tube Welded Steel Pipes Length 1.5m - 4m

Yield Strength

GB/T 24187 Cold Drawn Precision Steel Tube Welded Steel Pipes Length 1.5m - 4m

Elongation

A/%

0.25~<0.35 ≥270   ≥32
0.35~<0.50 ≥34
≥0.50 ≥36

a Replace with GB/T 24187 Cold Drawn Precision Steel Tube Welded Steel Pipes Length 1.5m - 4m when the yield phenomenon is not obvious.

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

GB/T 24187 Cold Drawn Precision Steel Tube Welded Steel Pipes Length 1.5m - 4m

Yield Strength

GB/T 24187 Cold Drawn Precision Steel Tube Welded Steel Pipes Length 1.5m - 4m

Elongation

A/%

≤0.50 ≥280 130~250 ≥38
>0.50 ≥40

a Replace with GB/T 24187 Cold Drawn Precision Steel Tube Welded Steel Pipes Length 1.5m - 4m when the yield phenomenon is not obvious.

b Sample type of sample number P14 in GB/T 228-2002.

 

 

 

TABLE 8 Mechanical properties of steel pipe

Category

Tensile Strength

GB/T 24187 Cold Drawn Precision Steel Tube Welded Steel Pipes Length 1.5m - 4m

Yield Strength

GB/T 24187 Cold Drawn Precision Steel Tube Welded Steel Pipes Length 1.5m - 4m

Elongation

A/%

Ordinary steel pipe(MA) ≥270 ≥180 ≥14
Soft steel tube(MB) ≥230 150~220 ≥35

a Replace with GB/T 24187 Cold Drawn Precision Steel Tube Welded Steel Pipes Length 1.5m - 4m when the yield phenomenon is not obvious.

b Sample type of sample number S7 in GB/T 228-2002.

 

Characteristic:

TORICH 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 Images:

 

 

Precision Steel Hydraulic Cylinder Tube GB/T 24187 Cold Drawn For Evaporator 10

QUALITY CONTROL

1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.

 

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

 

 

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