Payment & Shipping Terms:
|Produce Name:||TORICH JIS G 3461 Seamless Carbon Steel U Bend Tube For Boiler / Heat Exchanger||Color:||Black|
|Material:||Carbon Steel Tube||Technique:||Cold Drawing|
JIS G 3461 Seamless Carbon Bending Steel Tubing For Boiler / Heat Exchanger
JIS G 3461 Seamless carbon Steel tubes for boiler and heat exchanger
Size range:OD 5-420mm*WT0.5-50mm
Length: 12000m below, or upon customer's requests.
Application:for boiler and heat exchanger
|CHEMICAL COMPOSITION % max|
1. When the purchaser requires product analysis,the permissible deviation for the values given above shall be as specified in the Table in JIS G 032 for the seamless steel tube and likewise in Table 1 (as JIS G 3461)for the electric resistance welded steel tube.
2.Where required by the purchaser,Si may be designated as 0.1-0.35%
|MECHANICAL PROPERTIES min|
|Steel grade||Tensile strength Mpa||Yeild point or proof stress Mpa||Elongation %|
|Steel grade||Rockwell hardness HRB(Mean value of three points)|
|Heat Treatment (Applicable till the end of 1990)|
|Steel Grade||Heat Treatment|
|Hot finished seamless steel tube||Cold finished seamless steel tube||Electric resistance welded steel tube other than hot finished or cold finished steel tube||Finished electric resistance welded steel tube||Fold finished electric resistance welded steel tube|
|STB 340||As manufactured, as required, low temperature annealing or normalizing may be performed||low temperature annealing, normalizing or full annealing||normalizing||As manufactured, However, as required ,low temperature annealing or normalizing may be performed||normalizing|
|STB 410||As manufactured, However, as required, low temperature annealing or normalizing may be performed||low temperature annealing, normalizing or full annealing||normalizing||low temperature annealing|
Please specify the delivery condition and heat treatment requirement when sending the enquiry.
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.