ST45 precision seamless pipe is a low alloy seamless steel pipe made by cold drawing or cold rolling, which is widely used in hydraulic systems, automobile manufacturing, mechanical engineering, machine tools and tool manufacturing.
ST45 precision pipe is usually delivered in the state of pickling and phosphating to ensure the surface finish and corrosion resistance of the steel pipe.
ST45 Cold Drawn Seamless Steel Pipe Specification
| Main Produdion Category | Seamless Steel Tube/Pipe, Cold Drawn Steel Pipe, Precision Welded Pipe |
| Production Range | Outer Diameter: 10-120mm (0.39 inch - 4.72 inch) |
| Wall Thickness: 1-20mm (0.039 inch - 0.79 inch) | |
| Tolerance | Tolerance ±0.10mm, Superior products ±0.05mm, Can be customized according to customer's requirements |
| Technique | Cold Drawn / Cold Rolled |
| Finished Product Condition | BK, BKS, +C, +LC, +SR, +A, +N |
| Shape | Round or Special shapes |
| Main Standards | ASTM A519, A530, A179, A192 |
| DIN10297-1, DIN17121, DIN1629, DIN2391, EN10305, EN10087, BS970 | |
| JISG3441, JISG3444, JISG3445, JISG4804 | |
| GOST8733, GOST8734, GOST8645,GOST8639, GOST1414 | |
| Further Processing for Steel Tubes | Heat treatment (Quenching and Tempering), Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking |
Chemical Properties of DIN 2391 ST45 Pipes
| Standard | Grade | C | Si | Mn | P max | S max |
| DIN2391 | St45 | ≤0.21 | ≤0.35 | ≥0.4 | 0.025 | 0.025 |
Carbon Steel DIN 2391 ST45 Pipes Mechanical Properties
| Cold drawn(Mandatory) | Cold drawn(Soft) | Cold Drawn and Stress Release | Anneal | Normalizing | ||||||||
| BK1) | BKW1) | (BKS) | (GBK)1) | (NBK)1) | ||||||||
| Grade | Tensile | Elongation | Tensile | Elongation | Tensile | Yield point | Elongation | Tensile | Elongation | Tensile | Yield point | Elongation |
| N/mm2 | % | N/mm2 | % | N/mm2 | N/mm2 | % | N/mm2 | % | N/mm2 | N/mm2 | % | |
| St45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440~570 | 255 | 21 |
FAQ
Q. Do you provide free samples?
Yes, we can provide free samples for testing, and the buyer should bear all shipping costs.
Q. How long is your delivery time?
Generally speaking, if there is stock, the delivery time is 3-7 days; if there is no stock, the delivery time is 7-15 days, the specific time depends on the quantity.
Q. How do we ensure the quality?
Before mass production, always provide pre-production samples; always carry out final inspection before shipment. We can also accept third-party inspection and quarantine.
Q. Why should you buy from us instead of other suppliers?
GNEE Group produces multi-specification steel pipes, supports customization, and provides testing, packaging, transportation and other services.
Q. What are your payment terms?
We accept T/T, L/C, Western Union, etc.
The payment method can be negotiated by both parties according to the actual situation.
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