BRIEF INTRODUCTION OF STAINLESS STEEL TUBE
Stainless steels are iron-based alloys usually containing at least 11.5% chromium. Other elements, nickeI being the most Important, may be added in combination with chromium to obtain special properties.
Stainless steels are highly resistant to corrosive attack and to oxidation at high temperatures. in general, resistance to corrosion and oxidation increases progressively, though not proportionately, with the increase in chromium content.
Stainless steel pipe and tubing are used for a variety of reasons: to resist corrosion and oxidation, to resist high temperatures, for cleanliness and low maintenance costs, and to maintain the purity of materials which come In contact with stainless. The inherent characteristics of stainless steel permits the design of thin wall piping systems without fear of early failure due to corrosion. The use of fusion welding to join such piping eliminates the need for threading.
Stainless steel tubing is typically measured by its outer diameter and can be used in a variety of applications including a number of structural applications. Stainless steel tubing is extremely durable and able to withstand corrosion. This tubing will not rust, even if exposed to the elements, heat, and other extreme conditions. Because of these factors, stainless steel tubing can be used for a wide variety of applications.
Common Applications for Stainless Steel Tubing
Stainless steel tubing has a number of uses in a wide variety of industries. It can be used during manufacturing in processing plants or can become part of a final product. Stainless steel tubing can also be used in pipelines to transport oil, gas, water, or chemicals.
The stainless steel tubing that is supplied by Crestwood Tubulars can used in a variety of industries, including:
- Machinery Parts
- Food and Beverage Processing
- Pharmaceutical
- Biotechnology
- Automotive
- Marine
- Construction
- Chemical
- Oil and Gas
STANDARDS OF STAINLESS STEEL TUBING
ASTM-Standards
Section One: Iron and Steel Products Steel - Piping, Tubing, Fittings
| ASTM Volume 01.01 |
| A 213 / A 213M | | Seamless ferritic and austenitic alloy steel boiler, superheater and heat exchanger tubes |
| A 268 / A 268M | | Seamless and welded ferritic and martensitic stainless steel tubing for general service |
| A 269 / A 269M | | Seamless and welded austenitic stainless steel tubing for general service |
| A 312 / A 312M | | Seamless and welded austenitic stainless steel pipes |
| A 376 / A 376M | | Seamless austenitic steel pipe for high-temperature central-station service |
| A 511 | | Seamless stainless steel mechanical tubing |
| A 789 / A 789M | | Seamless and welded ferritic-austenitic stainless steel tubing for general service |
| A 790 / A 790M | | Seamless and welded ferritic-austenitic stainless steel pipe |
Section Two: Nonferrous Metals Nickel and others
| ASTM Volume 02.04 |
| B 161 | | Nickel seamless pipe and tube (UNS N02200; N02201) |
| B 163 | | Seamless nickel and nickel alloy condenser and heat exchanger tubes (e.g. UNS N02200; N04400; N06600; N08800) |
| B 165 | | Nickel-copper alloy (UNS N04400), seamless nickel pipe and tube |
| B 167 | | Nickel-chromium-iron alloys (UNS N06600, N06601 and N06690), seamless pipe and tube |
| B 407 | | Nickel-iron-chromium alloys (UNS N08800; N08810; N08811), seamless pipe and tube |
| B 423 | | Nickel-iron-chromium-molybdenum-copper alloys (UNS N08825), pipe and tube |
| B 444 | | Nickel-chromium-molybdenum-columbium alloys (UNS N06625), pipe and tube |
| B 622 | | Seamless nickel and nickel-cobalt alloy pipe and tube (e.g. UNS N06455; N06059; N10276, N06002) |
| B 668 | | Seamless tubes (UNS N08028) |
| B 677 | | Seamless pipe and tube (UNS N08904; N08925; N08926) |
| B 729 | | Seamless pipe and tube (UNS N08020; N08026; N08024) |
*Note: Section Two: Nonferrous Metals Nickel, Cobalt, Lead, Tin, Zinc, Cadmium, Precious, Reactive, Refractory Metals and Alloys; Materials for Thermostats, Electrical Heating and Resistance Contacts, and Connectors
ASME Boiler Pressure Code Section II Part A - Ferrous Material Specification
| ASME |
| SA 213 / SA 213M | | Seamless ferritic and austenitic alloy steel boiler, superheater and heat exchanger tubes |
| SA 268 / SA 268M | | Seamless and welded ferritic and martensitic stainless steel tubing for general service |
| SA 269 / SA 269M | | Seamless and welded austenitic stainless steel tubing for general service |
| SA 312 / SA 312M | | Seamless and welded austenitic stainless steel pipes |
| SA 376 / SA 376M | | Seamless austenitic steel pipe for high-temperature central-station service |
| SA 511 | | Seamless stainless steel mechanical tubing |
| SA 789 / SA 789M | | Seamless and welded ferritic-austenitic stainless steel tubing for general service |
| SA 790 / SA 790M | | Seamless and welded ferritic-austenitic stainless steel pipe |
ASME Boiler Pressure Code Section II Part B - Non-Ferrous Material Specification
| ASME |
| SB 161 | | Nickel seamless pipe and tube (UNS N02200; N02201) |
| SB 163 | | Seamless nickel and nickel alloy condenser and heat exchanger tubes (e.g. UNS N02200; N04400; N06600; N08800) |
| SB 165 | | Nickel-copper alloy (UNS N04400), seamless nickel pipe and tube |
| SB 167 | | Nickel-chromium-iron alloys (UNS N06600, N06601 and N06690), seamless pipe and tube |
| SB 407 | | Nickel-iron-chromium alloys (UNS N08800; N08810; N08811), seamless pipe and tube |
| SB 423 | | Nickel-iron-chromium-molybdenum-copper alloys (UNS N08825), pipe and tube |
| SB 444 | | Nickel-chromium-molybdenum-columbium alloys (UNS N06625), pipe and tube |
| SB 622 | | Seamless nickel and nickel-cobalt alloy pipe and tube (e.g. UNS N06455; N06059; N10276, N06002) |
| SB 668 | | Seamless tubes (UNS N08028) |
| SB 677 | | Seamless pipe and tube (UNS N08904; N08925; N08926) |
| SB 729 | | Seamless pipe and tube (UNS N08020; N08026; N08024) |
Stainless and heat resisting steels
| UNI 6904 | | Seamless tubes of special alloyed corrosion and heat resisting stainless tubes |
Stainless steels
| GOST 9940 | | Seamless stainless steel tubes, hot finished |
| GOST 9941 | | Seamless stainless steel tubes, cold and hot finished |
Stainless steels
| EN 10216-5* | | Seamless steel tubes for pressure purposes |
| EN ISO 1127 | | Seamless stainless steel tubes (Dimensions and weights) |
Note: This European standard is replacing old national standards for pressure purpose (DIN 17458 DIN 17459 NFA 49117 NFA 49217 NFA 49218 BS 3605 BS 3605-1 etc…
All European standards have their own national designation (example NF EN 10216-5 DIN EN 10216-5 BS EN XXXXX UNI EN XXXXX ..)
Stainless steels
| DIN 17456 | | Seamless circular austenitic stainless steel tubes for general service |
| DIN 28180 | | Seamless steel tubes for heat exchangers |
| SEW 400 | | Stainless steels |
| SEW 470 | | Heat resisting steels |
| AD 2000-W2 | | Materials for pressure vessels - austenitic stainless steels |
| VdTÜV data sheet 405 | | 1.4439 (DMV 4439) |
| VdTÜV data sheet 415/2 | | 1.4466 (DMV 25.22.2) |
| VdTÜV data sheet 418 | | 1.4462 (DMV 22.5) |
| VdTÜV data sheet 421 | | 1.4539 (DMV 904) |
| VdTÜV data sheet 502 | | 1.4529 (DMV 926) |
Nickel and nickel alloys
| DIN 17740 | | Nickel for semi-finished products |
| DIN 17742 | | Nickel-chromium alloys |
| DIN 17743 | | Nickel-copper alloys |
| DIN 17744 | | Nickel-molybdenum-chromium alloys |
| DIN 17745 | | Nickel-copper alloys with iron |
| DIN 17751 | | Nickel and nickel alloy tubes - special properties |
| DIN 59755 | | Nickel and nickel alloy tubes - dimensions |
| VdTÜV data sheet 263 | | 2.4360 (DMV 400) |
| VdTÜV data sheet 305 | | 2.4816 (DMV 600) |
| VdTÜV data sheet 345 | | 2.4068 (DMV 200) |
| VdTÜV data sheet 412 | | 1.4878 (DMV 800H) |
| VdTÜV data sheet 424 | | 2.4610 (DMV C4) |
| VdTÜV data sheet 432/2 | | 2.4858 (DMV 825) |
| VdTÜV data sheet 434 | | 1.4876H (DMV 800H) |
| VdTÜV data sheet 485 | | 2.4663 (DMV 617) |
| VdTÜV data sheet 497 | | 1.4877 (DMV AC66) |
| VdTÜV data sheet 509/2 | | 1.4529 (DMV 931) |
Stainless steels, high-strength high-temperature and heat resisting steels
| NF A 49-214 | | Seamless austenitic high strength high-temperature steel tubes for elevated temperatures |
| NF A 49-317 | | Seamless austenitic mechanical tubing |
Stainless and high-strength high-temperature steels
| BS 3059 | | Steel boiler and superheater tubes |
| BS 3606 | | Steel tubes for heat exchangers |
Nickel and nickel alloys
Table BS Nickel and nickel alloys
| BS 3074 | | Nickel and nickel alloys: Seamless tubes |
| JIS G 3459 | | Stainless steel pipes |
| JIS G 3463 | | Stainless steel boiler and heat exchanger tubes |
