Grade 316L Stainless Steel Coiled Tubings for subsea application ASTM A269
Grade 316 is the standard molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels. The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments.
Compared to chromium-nickel austenitic stainless steels, 316L stainless steel offers higher creep, stress to rupture and tensile strength at elevated temperatures.
316L seamless stainless steel coiled tube is available mainly for hydraulic tube, stainless steel instrumentation tubing, capillary tube, and bright annealed tube. This product is manufactured by cold drawn / cold roll method.
316L seamless stainless steel coiled tubing can reduce the cost of installation due to:
– Higher rate of materials utilization
– Fewer collections
– System integrity can be improved much.
– Improve the ety of the pipeline system.
Specification:
Outer diameter: 1/16” to 1”
Thickness: 0.01” to 0.083”
Standard: ASTM A269
Tolerance range: diameter: + 0.1mm, wall thickness: + 10%, length: -0/+6mm
Length: 800-3500M or according to customer requirements.
Product advantages: surface polishing and fine, uniform wall thickness, tolerance precision etc..
Commonly Size of stainless steel coiled tube: upon customers’ request
Delivery conditions: Mostly the stainless steel coil tubing is supplied in bright annealed condition.
Chemical Composition:
| Chemical Composition,% |
| Standard | ASTM A269 | ASTM A789 | ASTM B704 |
| Material | SS 304 | SS 304L | SS 316 | SS 316L | Duplex 2205 | Super Duplex 2507 | Incoloy 625 | Incoloy 825 |
| UNS | S30400 | S30403 | S31600 | S31603 | S32205 | S32750 | N06625 | N08825 |
| C | 0.08 | 0.035 | 0.08 | 0.035 | 0.03 | 0.03 | 0.1 | 0.05 |
| Mn | 2 | 2 | 2 | 2 | 2 | 1.2 | 0.5 | 1 |
| P | 0.045 | 0.045 | 0.045 | 0.045 | 0.03 | 0.035 | 0.015 | ... |
| S | 0.03 | 0.03 | 0.03 | 0.03 | 0.02 | 0.02 | 0.015 | 0.03 |
| Si | 1 | 1 | 1 | 1 | 1 | 0.8 | 0.5 | 0.5 |
| Ni | 8.0-11.0 | 8.0-12.0 | 10.0-14.0 | 10.0-15.0 | 4.5-6.5 | 6.0-8.0 | min 58.0 | 38.0-46.0 |
| Cr | 18.0-20.0 | 18.0-20.0 | 16.0-18.0 | 16.0-18.0 | 22.0-23.0 | 24.0-26.0 | 20.0-23.0 | 19.5-23.5 |
| Mo | ... | ... | 2.00-3.00 | 2.00-3.00 | 3.0-3.5 | 3.0-3.5 | 8.0-10.0 | 2.5-3.5 |
| N | ... | ... | ... | ... | 0.14-0.20 | 0.24-0.32 | ... | ... |
| Cu | ... | ... | ... | ... | ... | 0.5 | ... | 1.5-3.0 |
| Fe | | | | | | | 5 | min 22.0 |
| Al | | | | | | | 0.4 | 0.2 |
| Ti | | | | | | | 0.4 | 0.6-1.2 |
| Cb+Ta | | | | | | | 3.15-4.15 | ... |
Product Tags:
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ASTM A269 Welded Cold Drawn 316L Oil Gas Coiled Tubing Images
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