15CrMo 12Cr2Mo 12Cr5Mo GB6479 Seamless Steel Tube , Length 4-12m
Product Details
seamless steel pipe
,precision stainless steel tubing
GB6479 Seamless Steel Tubes for High-Pressure Chemical Fertilizer Equipments
Material:10# 20# Q345B 12CrMo 15CrMo 12Cr2Mo 12Cr5Mo ASTM 1010/1020/179/192 st37/35.4/35.8/45-8
Size Range:OD:3-420mm
WT:0.5-50mm
General Length:4-12m
Tolerance:
According to the following tables or customers’ request.
Characteristic:
Good concentricity
Good surface quality
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
TORICH QUALITY ASSURANCE
Characteristic:Technical Requirements
Physical performance
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.
Producing Method:hot roling(extrude pressing,expansion) or cold drawn(rolling)
Technical Delivery Conditions:Steel tubes shall be delivered after heat treatment in the way specified the table given below. The way of heat treatment shall be noted in the quality certificate.
Widely used in the field of/Application:High-pressure fertilizer equipment and pipe seamless steel pipe, Transport water, sewage, gas, air, heating steam and other low-pressure fluid etc.
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