STKM11A STKM12A 12B Heavy Thick Wall Steel Tubing

TORICH JIS G3445 STKM11A STKM12A 12B Heavy Thick Wall Steel Tubing

1.Quick Detail:
45 1045 S45C SCM440 42CrMo 
Thick wall tubes for sleeve.
High Mechanical properties

Reasonable price

2.Production process:

Cold drawn tubes from perforated pipe,to meet your requests.

3.Main Features:
Lower costs of producing sleeve than doing by Steel Bar,and have better performance on your usage.

4.Main Application:
sleeve,in construction, mechanical purpose, drill pipe, automotive part.

5.Our products are widely used in:
General and mechanical structure,contruction and liquid conveyance.

6.Tolerances: 
OD: 
D 5 – 10 mm: ± 0.15 mm 
D 11 – 30 mm: ± 0.30 mm 
D 32 – 50 mm: ± 0.40 mm 
D 51 – 140 mm: ± 0.8%
WT: 
S 0.4 – 1 mm: ± 0.12 mm 
S 1.2 – 5 mm: ± 10% 
S 5.5 – 12 mm: ± 8%

7.Keywords:

Automotive Pipes, Astm Pipes, Drill Pipes, Mechanical Pipes, Pipes for engine, Construction Pipes.

                                               Product Show

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.