TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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| Name | Elliptical Tubes |
| Standard: | ASTM A179, ASTM A53, ASTM789 etc. |
| Type | Welded pipe and seamless pipe |
| Material | carbon steel and Stainless steel |
| Shape | Flat oval and oval |
| Sizes range | 8~100mm*6~70mm |
| Wall thickness | 1m~8.0mm |
| surface finish | Pickling, oiled, annaling and bright as customer's required. |
| Packing: | Export sea worthy package |
| Delivery: | 30-45 days |
| MOQ: | 5 Metric Tons |
| Price terms: | FOB, CFR, CIF |
| Payment terms: | T/T, L/C |
| Application | Steel Elliptical Pipe applies to Petroleum & chemical industries, construction field, machinery and hardware fields, food processing and medical industry, high or low temperature resistant, electricity industries, etc. |
| our service | a) Small MOQ of Elliptical oval Pipe b) Large supply ability of Elliptical oval Pipe c) Can accept any complex inquiry of Steel welded and seamless oval Pipe d) Stock available of Elliptical oval Pipe e) Strong processing and warehousing service for Elliptical oval Pipe f) Strict quality control for Elliptical oval Pipe g) Professional negotiation for Elliptical oval Pipe |
The following table lists the chemical composition of commonly used steel types for ASTM A179 cold-drawn tubes:
| Steel Type | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) |
| ASTM A179 (Grade A) | 0.06-0.18 | 0.27-0.63 | 0.035 | 0.035 |
| ASTM A179 (Grade B) | 0.10-0.20 | 0.29-0.63 | 0.035 | 0.035 |
The following table lists the mechanical properties of commonly used steel types for ASTM A179 cold-drawn tubes:
| Steel Type | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) |
| ASTM A179 (Grade A) | 325 | 180 | 35 | 72 |
| ASTM A179 (Grade B) | 345 | 205 | 35 | 77 |
Pictures:
ADVANTAGE
*Good abilities of stress corrosion, all kinds of localized corrosion,antioxidant corrosion(including high temperature oxidation resistance).
*Low density
*Good thermal conductivity: It is 30%-50% higher than Austenite. Small coefficient of thermal expansion: It is 30%-40% less than Austenite.
*Big elastic modulus
*Good processing properties
*Easily bending, stamping, curling, pinin, cold forging and machining.
*Excellent deep drawability
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.