TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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| Standard | ASTM A554, A249, A269 and A270, A312 |
| Matrial | 201 ( Ni 1.2%), 202 (Ni 3.5%~4.5%), 301(Ni 5%), 304 (Ni 8%, Cr 18%), 316 (Ni 10%, Cr 18%), 316L (Ni10%~14%), 430 |
| Size and Tolerance | OD: 0.4mm--8.0mm, Outer Diameter: +/- 0.2mm WT: 0.05mm - 0.9mm, Thickness: +/- 0.02mm Length: According to Customer's Requirement, Length: +/- 5% |
| Common size | 0.4*0.11, 0.5*0.1, 0.5*0.15, 0.6*0.1, 0.6*0.125, 0.63*0.15, 0.7*0.1, 0.7*0.15, 0.8*0.1, 0 .8*0.125, 0.8*0.15, 0.9*0.1, 0.9*0.15 etc |
| Surface Finish | 180G, 320G, 400G Satin / Hairline 400G, 500G, 600G or 800G Mirror finish |
| Test and Inspection | Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT |
| Application | Decoration construction, upholstery, industry instrument |
1. Grades TP304H, TP309H, TP309HCb, TP310H, TP310HCb, TP316H, TP321H, TP347H, and TP348H are
modifications of Grades TP304, TP309S, TP309Cb, TP310S, TP310Cb, TP316, TP321, TP347, and TP348, and
are intended for high-temperature service such as for superheaters and reheaters.
2.The tubing sizes and thicknesses usually furnished to this specification are 1/8 in. [3.2 mm] in inside diameter to
12 in. [304.8 mm] in outside diameter and 0.015 to 0.320 in. [0.4 to 8.1 mm], inclusive, in wall thickness. Tubing
having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.
3. Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in inside diameter or 0.015 in.
[0.4 mm] in thickness.
4.The welded (WLD) tubes shall be made from flat-rolled steel by an automatic welding process with no addition of filler metal.
4.1 Subsequent to welding and prior to final heat treatment, the tubes shall be cold worked either in both weld and base metal
or in weld metal only. The method of cold working may be specified by the purchaser. When cold drawn, the purchaser may
specify the minimum amount of reduction in cross-sectional area or wall thickness, or both.
4.2 Heavily cold worked (HCW) tubes shall be made by applying cold working of not less than 35 % reduction in both wall and
weld to a welded tube prior to the final anneal. No filler metal shall be used in the making of the weld. Prior to cold working, the
weld shall be 100 % radiographically inspected in accordance with the requirements of ASME Boiler and Pressure Vessel Code,
Section VIII, Division 1, latest revision, Paragraph UW 51.
Product Show of Welded Small Diameter Stainless Steel Capillary Pipe
Our Customer
Packing and Delivery
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.
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples of carbon seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us