NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
| Payment Terms | T/T |
| Supply Ability | 5000 tons/month |
| Delivery Time | 30 days |
| Packaging Details | Bundles Package, Wooden Box Package |
| Material | Q195 Q215 Q235 Q295 Q345 |
| Surface | Bright ,Copper Plated, Galvanized Or Customers'requirements. |
| OD Size | 3.18-18mm |
| WT Size | 0.5-1.2mm |
| Type | Welded Steel Pipes |
| Shape | Round，Or According To The Customer's Request |
| Length | 1-200m |
| Brand Name | New Era |
| Model Number | GB/T24187 |
| Certification | ISO 9001,ISO 14001,TS 16949 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 5000 tons/month |
| Delivery Time | 30 days | Packaging Details | Bundles Package, Wooden Box Package |
| Material | Q195 Q215 Q235 Q295 Q345 | Surface | Bright ,Copper Plated, Galvanized Or Customers'requirements. |
| OD Size | 3.18-18mm | WT Size | 0.5-1.2mm |
| Type | Welded Steel Pipes | Shape | Round，Or According To The Customer's Request |
| Length | 1-200m | Brand Name | New Era |
| Model Number | GB/T24187 | Certification | ISO 9001,ISO 14001,TS 16949 |
| Place of Origin | China | ||
| High Light | weldable steel tubing ，welding round tubing | ||
GB/T24187 Cold Drawn Precision Welded Steel Coil Tubes for Condenser
Spec:
Material:C Si Mn P S
Size Range:OD:3.18-18mm
WT:0.5-1.2mm
General Length:1-200m
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 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
|
Yield Strength
|
Elongation A/% |
| ≤0.50 | ≥280 | 130~250 | ≥38 |
| ＞0.50 | ≥40 | ||
|
a Replace with 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
|
Yield Strength
|
Elongation A/% |
| Ordinary steel pipe(MA) | ≥270 | ≥180 | ≥14 |
| Soft steel tube(MB) | ≥230 | 150~220 | ≥35 |
|
a Replace with when the yield phenomenon is not obvious. 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
Company Details
Business Type:
Manufacturer
Year Established:
1988
Total Annual:
100000000-15000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int... Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int...
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