Boiler Industry Elliptical Seamless Special Steel Pipe Cold Drawn SA179

Elliptical Welded Seamless Special Steel Pipe for Boiler Industry
 
 
Standard: ASTM A179, ASTM A53, ASTM789 etc.
 
Material: carbon steel and Stainless steel
 
Type: Welded pipe and Seamless pipe
 
Shape: Flat oval and oval
 
Sizes: OD: 8~100mm*6~70mm  WT: 1m~8.0mm
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.
 

 
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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.