ASTM A209 / A209M -03 Standard Specification for Seamless Carbon-Molybdenum Alloy-Steel Boiler and super heater Tubes
Main Applications: Boiler and Heat Exchanger, Automobile and Bearing Industry, Mechanical and Structral Purpose, Hydraulic and Petrochemical Purpose, etc.
Size: 6.35 - 168mm (OD) x 0.89 - 50mm (WT);
Tight tolerance, Smooth surface, Uniform mechanical property or on customer's option;
a. Heat treatment: BK, BKS, GBK, NBK,Stress Relief, Normalizing, Spheroidize Anneal, Annealing, Bright Annealing, Normalized or on customer's option;b. Quenchedand Tempered, Solution Annealing or on customer's option;
c. Rust prevention treatment and light oiled or on customer's option
d. Plastic plugs or caps on both ends or on customer's option
e. Type: Round , Square, Rectangle, Hexagon. Streamline, etc.
f. Packaging: Hexagonal bundles of max. 1,500kg with several steel strips, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips or packed in heavy tri-wall boxes, wooden boxes, wooden slats or on customer's option.
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