TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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Product Description
TORICH Flat Sided Tube Elliptical Thin Wall Small Diameter Decorative Handrail Wardrobe Welded Stainless Steel 304 316 Oval Tube
Steel Grade/Steel Material:
| Steel Grade | TP304 | TP304L | TP304LN | TP316 | TP316L |
| UNS | S30400 | S30403 | S30453 | S31600 | S31603 |
| C, max | 0.08 | 0.035 | 0.035 | 0.080 | 0.035 |
| Mn, max | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 |
| P, max | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
| S, max | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 |
| Si, max | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Ni | 18.0-20.0 | 18.0-20.0 | 18.00-20.00 | 16.0-18.0 | 16.0-18.0 |
| Cr | 8.0-11.0 | 8.0-13.0 | 8.00-12.00 | 11.0-14.0 | 10.0-14.0 |
| Mo | 2.00-3.00 | 2.00-3.00 |
Delivery Condition:
Pickled and Annealed, or as customer's requirement
Size Range:
OD: 8-100mm*6-70mm
WT: 1-8mm
Length: max 12000mm
Characteristic:
Good concentricity
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
TORICH QUALITY ASSURANCE
Production Processs:
The tubes shall be made from flat-rolled steel by an automatic welding process with no addition of the filler metal----cold drawn to oval shape tube----cut to the required length----deburr
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.
A: We are factory.
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.