Boiler Structural Alloy Steel Pipe Oiled Surface With Hot / Cold Finished
Product Details
alloy steel tube
,alloy steel seamless tube
Details of Structural Alloy Steel Pipe:
Alloy Steel Tube Grade GB/T3077 38CrMoAl ISO 41CrAlMo74 Structural steel tubes standard C :0.35~0.42 Si:0.20~0.45 Mn:0.30~0.60 S :≤0.035 P :≤0.035 Cr:1.35~1.65 Ni:≤0.030 Cu:≤0.030 Mo:0.15~0.25 Hardness≤229HB:30mm
Packing and Container Loading for Structural Alloy Steel Pipe: |
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Product Categories : Seamless Alloy Steel Tubes
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.
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