Thick 2-30mm DIN2391 EN10305 ASTM A519 Cold Drawn Seamless Precision Hydraulic Steel Tube
TORICH is specialized in manufacturing and exporting of seamless and welded precision steel pipes.
In view of cold-drawn precision seamless steel pipe used for mechanical structure and hydraulic equipment,
these pipes must be manufatured with high dimensional precision and goosurface finish, which is the strength of TORICH.
Size range: O.D.:30-250mm W.T.:2-30mm L:max12000mm or as your request
Production: Cold Drawn / Cold Rolling
Our regular production size: 60x50 42x3.2mm
| Mechanics performance: |
| Material | Tensile strength | Yield strength | Elongation | Hardness |
| CK20/20#/AISI1020 | >520 N/ mm2 | >375 N/mm2 | >15% | >85HB |
| CK45/45#/AISI1045 | >600 N/ mm2 | >520 N/ mm2 | >15% | >85HB |
| ST52/16Mn/Q345D | >600 N/ mm2 | >520 N/ mm2 | >15% | >85HB |
| 25Mn/STKM 13C-T | >600 N/ mm2 | >530 N/ mm2 | >15% | >85HB |
| Condition | Material Grade | T.S (MPa) lowest | Y.S (MPa) lowest | Elongation (%) |
| BKS | ST35 (10#) | ≥420 | ≥315 | ≥14 |
| BKS | ST45(20#) | ≥520 | ≥375 | ≥12 |
| BKS | ST52(16Mn) | ≥580 | ≥420 | ≥10 |
| GBK | ST35 (10#) | ≥315 | | ≥35 |
| GBK | ST45(20#) | ≥390 | | ≥32 |
| GBK | ST52(16Mn) | ≥490 | | ≥30 |
| NBK | ST35 (10#) | 340-470 | ≥235 | ≥32 |
| NBK | ST45(20#) | 440-570 | ≥255 | ≥30 |
| NBK | ST52(16Mn) | 490-630 | ≥335 | ≥28 |
Produst Photos of Cold Drawn Seamless Precision Hydraulic Steel Tube
Company Introduction
Manufacturing Process
Packing Details : In bundles or in wooden boxes packaging
1.Coated by antirust oil.
2.Sheathed by paper carton tube, both end covered by roundness paper carton.
3. Cotton rope twined and bundled without interspace, to avoid any surfaced scratched.
4. Plastic film covered overall of bundled bars, to keep seal.
5. (Options) Woven tarpaulin covered overall of bundled bars, to keep packing clear.
6. Lifting belts on the middle of bundled bars.
7. (Options) Wooden box packed.
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
FQA
Q: Are you trading company or manufacturer?
A:We are a professional steel pipes materials manufacturer.
Q: How long is your delivery time?
A: Generally it takes 7-14 days if the goods are in stock or 30-60 days if there is no stock, this mainly depends on quantity.
Q: Do you provide free samples?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us.
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