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Help CenterSeamless Steel Tubing ( DIN2391/EN10305-1) Cold Drawn Cold Rolled
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Hebei province gold mysterious pipe co.,ltd is one of the key manufacturer specializing in seamless steel pipes.Products include common seamless steel pipe,cold-drawing pipe,cold-rolling pipe and special shape pipes.
Seamless Steel Tubing ( DIN2391/EN10305-1)
Quality Standard:
DIN 2391 Seamless Precision Steel Tubes
EN10305 Steel tubes for precision applications. Technical delivery conditions. Seamless cold drawn tubes
Size:
Outer Diameter:8mm-80mm
Wall Thickness:1mm-14mm
Length: Random Length, Fixed Length, SRL, DRL
Heat treatment:
Annealed: Bright annealed, , Spheroidize annealed
Normalized, Stress relieved, Cold finished, Quenched and Tempered
Delivery Condition : BKS, BK ,BKW, GBK(+A), BK(+C)
Packing:Hexagonal bundles of max. 2,000kg with several steel strips, Wrapped in sackcloth with several steel strips
EN 10305-1/4 Seamless Steel Tubes for precision applications
C (Max) Mn(Max) Si(Max) S(Max) P(Max)2. CHEMICAL COMPOSITION (%)
0.22 1.6 0.5 0.035 0.035
3. MECHANICAL PROPERTIES
Elongation(Min) Y.S (Min.) UTS (Min.)
≥15 470 N/MM2 580 N/MM2
4. SUPPLY CONDITION
Cold drawn seamless steel tube, stress relieved
5. SURFACE ROUGHNESS Ra = 0.4~0.8Micron
6. STRAIGHTNESS: ≤1 mm/M
7. OD TOLERANCE +/-0.10mm
8. LENGTH 100-13400mm AND CUT TOLERANCE +/-2mm
9. TUBE ENDS :nominally square to the axis and free from burs
11. APPEARANCE
Tube shall have a smooth internal and external surface consistent with cold working
process, tube inner surface should be free from rust, scratches and other surface
irregularities.
12. CERTIFICATION both in English and Chinese.
.
| Grade | Chemical Composition(%): |
||||
| C max | Si max | Mn | P max | S max | |
| St35 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| St45 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| St52 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
| E215 | 0.10 | 0.05 | 0.70 | 0.025 | 0.025 |
| E235 | 0.17 | 0.35 | 1.2 | 0.025 | 0.025 |
| E355 | 0.22 | 0.55 | 1.6 | 0.025 | 0.025 |
Mechanical Properties (Mpa):
| Steel grade | BK(+C) | BKW(+LC) | BKS(+SR) | GBK(+A) | NBK(+N) | |||||||
|
RmN/mn min |
min |
RmN/mn min |
min |
N/mm min |
ReH N/mm min |
min |
N/mm min |
min |
N/mm min |
ReH N/mm min |
min | |
| St35 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340-470 | 235 | 25 |
| St45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440-570 | 235 | 21 |
| St52 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490-630 | 355 | 22 |
| E215 | 430 | 8 | 380 | 12 | 380 | 280 | 16 | 280 | 30 | 290-430 | 215 | 30 |
| E235 | 480 | 6 | 420 | 10 | 420 | 350 | 16 | 315 | 25 | 340-480 | 235 | 25 |
| E355 | 640 | 4 | 580 | 7 | 580 | 450 | 10 | 450 | 22 | 490-630 | 355 | |
Test equipment:
Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield
strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test,
Blow Test, Impact Test etc), Exterior Size Inspection, Nondestructive Test (Ultrasonic flaw detector, Eddy
current flaw detector), Hydrostatic Test.
mmon pipe:
Usage:
The pipes are widely used for the auto/motorcycle/agricultural machine/railway project/low-high pressure boiler tubes/bearing tubes/ships manufacturing industries/oil and other high standards & demand processing & manufacturing industries.
1. How long will it take to produce an order?
It is within 30days for the purchasing and production time with container order and 10days for the sample.
2. What is your minimum order?
Usually 5 ton for each size, please contact us when you are trying to purchase less than container load
3. What form of quotation do you offer?
FOB Tianjin, CIF and CNF Your destination
4. What is your payment term?
Payment is 30% deposit, 70% before shipment
5. Does the sample for free or not?
The samples are free if they are common sizes, You need to pay for the freight .
6. How do you guarantee the quality of the products?
All of our procedures are strictly operated under the ISO 9001:2008, and there are as many as 6 times of test during the production of each product to ensure the quality.
7. How do you to package the product?
Wrapped with polywoven bags, we use steel belt to pack the outside, polywooden cases or wooden boxes for thin wall thickness can be offered if required
8.How about the Third Party Inspection ?
We have been working with DNV,TUV,SGS,BV,CO,Lloyd's etc;
Send Inquiry to This Supplier
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