Sunny Steel supply a 1/2 million foot inventory of carbon steel pressure tubing including boiler tubes, condenser tubes and heat exchanger tubes all made in the China.
Our carbon steel pressure tubing inventory is manufactured in accordance with ASME SA-178 A and/or ASME SA-214 in diameters of 3/4″ through 4”.
Backbone of Automobile and rear axle tube
Manufacturing and processing of precision equipments, instruments and apparatus
Production Standard, Grade, Steel No:
ASTM A519 1010, 1020, 1025, 1035, 1045
ASTM A513 1010, 1020, 1025, 1035, 1040
JIS G 3441 SCM415TK SCM 430 TKSCM 440 TK
GB/T3639 10, 20, 35, 45
Delivery Condition: GBK, BKS, BK, BKW, NBK
Inspection and Test:
Chemical Composition, Mechanical Properties, Visual and Dimension Test, NDT, Grain Size Test
Oil-dip, Varnish, Shot Blasting
Grade and Chemical Composition (%)
Typical Mechanical Properties
|Grade||Condition||Tensile strength||Yield stength||Elongation|
Tubular products seamless mechanical tubing is furnished in both cold-drawn and hot finished form in a wide range of sizes, from 1.375″ to 7.750″ OD and from 0.188″ to 1.625″ wall thickness.
Hot-finished carbon and alloy—10,000 pounds, or 4,536 kilograms minimum.
Cold-drawn carbon and alloy—5,000 pounds minimum or 125 feet minimum, 2,268 kilograms minimum or 38.1 meters minimum, whichever is greater.
Quantity variation—standard ±10% of the ordered weight, or ±25 feet or 7.61 meters, whichever is greater.
Tubular Products special seamless tubing configurations start with the highest quality steels. Grade, chemical analysis and surface condition are carefully considered, and production processes are tailored to achieve the best tubing for the end use.
The configurations are formed from round tube by cold drawing. The tube is drawn over a shaped mandrel or through a shaped die, or both. Improved tolerances, finishes and mechanical properties result.