TORICH ASTM B111 C71500 Copper Nickel Alloy Steel U Tube for Boiler
This specification establishes the requirements for seamless tube and ferrule stock of copper and various copper alloys up to 3-1/8" in (80mm) inclusive, in diameter, for use in surface condenser, evaporators, and heat exchangers. The following coppers and copper alloys are apecified.
Type: Copper Alloy Steel U Tube
Application: For Heat Exchanger, Boiler, and Condenser
Technique: Cold Drawn
Material: C71500
Mechanical Properties : Tensile Strength: 360 MPa (min) | Yield Strength: 125 MPa (min)
Temper: O61 Annealed
Referenced Documents:
B153 Test method for expansion (Pin Test) of copper and copper alloy pipe and tubing.
B154 Test method for mercurous nitrate test for copper alloys.
B170 Specification for oxygen-free electrolytic copper refinery shapes.
B224 Classification of Coppers.
B846 Terminology for copper and copper alloy.
B858 Test method for ammonia Vapor for determining susceptibility to stress corrosion cracking in copper alloys.
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.
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