Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel, Stainless steel used in cryogenic, paper, chemical, petrochemical and refining industries, in power plants for heat exchangers, radiators, in aviation construction as aviation steel, screws, valves, heat exchangers, coolers, special tanks, pumps and pipelines.Steel resistant to intergranular corrosion in the sensitized and in the delivery conditions.
AFNOR 254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 Enquiry | Print this page
AFNOR 254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 Details
AFNOR 254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 Standard Download
| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | 254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 | Austenite | France - AFNOR , EN 10028-7 | EN 10088-1 | EN 10088-2 | EN 10088-3 | EN 10088-4 | EN 10088-5 | EN 10216-5 (2004) | EN 10217-7 | EN 10250-4 | EN 10253-3 | EN 10253-4 | EN 10272 | EN 10296-2 (2005) | EN 10297-2 (2005) | |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.020 | ||
| Si | - | 0.70 | ||
| Mn | - | 1.00 | ||
| P | - | 0.030 | ||
| S | - | 0.010 | ||
| Cr | 19.50 | 20.50 | ||
| Mo | 6.00 | 7.00 | ||
| Ni | 17.50 | 18.50 | ||
| N | 0.18 | 0.25 | ||
| Cu | 0.50 | 1.00 |
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 147 (≥) | 139 (≥) | 43 | 21 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 114 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 854 (≥) | 512 (≥) | 23 | 23 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 441 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 556 | 171 | 247 |
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
| Grade | Standard | Country | Application |
|---|---|---|---|
| A 167 S31254 | SAE | USA | Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip |
| A 213 S31254 | SAE | USA | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| A 240 S31254 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 249 S31254 | SAE | USA | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
| A 269 S31254 | SAE | USA | Seamless and Welded Austenitic Stainless Steel Tubing for General Service |
| A 270 S31254 | SAE | USA | Seamless and Welded Austenitic Stainless Steel Sanitary Tubing |
| A 276 S31254 | SAE | USA | Stainless Steel Bars and Shapes |
| A 312 S31254 | SAE | USA | Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes |
| A 358 S31254 | SAE | USA | Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications |
| A 403 CRS31254 | SAE | USA | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
| A 403 WP S31254 | SAE | USA | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
| A 409 S31254 | SAE | USA | Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service |
| A 473 S31254 | SAE | USA | Stainless Steel Forgings |
| A 479 S31254 | SAE | USA | Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels |
| A 688 S31254 | SAE | USA | Welded Austenitic Stainless Steel Feedwater Heater Tubes |
| A 813 S31254 | SAE | USA | Single- or Double-Welded Austenitic Stainless Steel Pipe |
| A 814 S31254 | SAE | USA | Cold-Worked Welded Austenitic Stainless Steel Pipe |
| A 943 S31254 | SAE | USA | Spray-Formed Seamless Austenitic Stainless Steel Pipes |
| A 959 S31254 | SAE | USA | Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels |
| A 988 S31254 | SAE | USA | Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service |
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254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 Equivalent Grade Stock
| Steel grade | Dimension | Shape | Unit | Quantity | Delivery state | Query |
|---|---|---|---|---|---|---|
| SkD-11 Round Bar Stock | Φ30-Φ350 | Round Bar | Kgs | 3102 | Hot-Rolled+Annealed+black | Enquiry |
| 17-4PH Coil Stock | 0.08*200mm | Coil or Strip | Kgs | 1623 | Cold-Rolled+Annealed | Enquiry |
| 17-4PH Round Bar | Φ5-300mm*L | Round Bar | Kgs | 46958 | Hot-Rolled+Annealed+black | Enquiry |
| 17-4PH plate | 8-45*1200*3000mm | Plate or Sheet | Tons | 4.9 | Hot-Rolled+Annealed+black | Enquiry |
| Cr12MoV | 12-160(T)*310-610(W)*L | Plate or Sheet | Tons | 12.38 | Hot-Rolled+Annealed+black | Enquiry |
| 1.2601 | 12-160(T)*310-610(W)*L | Plate or Sheet | Tons | 11.22 | Hot-Rolled+Annealed+black | Enquiry |
| IncoloyA-286 / GH 2132 Stock | Φ8-65mm*L | Round Bar | Kgs | 489 | Hot-Rolled+Annealed+black | Enquiry |
| Incoloy800 round bar | Φ115*1400 | Round Bar | Kgs | 169 | Hot-Rolled+Annealed+black | Enquiry |
| 17-7PH / 631 Coil & Strip, Sheet Stock | 0.3-3.0*10-180mm | Coil or Strip | Kgs | 1236.22 | Cold-Rolled+Annealed | Enquiry |
| X22CrMoV12-1 / 1.4923 | Φ17mm | Round Bar | Kgs | 300 | Hot-Rolled+Annealed+black | Enquiry |
| 1.2083 Forged Plate | T:105-185mm*W:510*L | Plate or Sheet | Tons | 26 | Forged+QT | Enquiry |
| X22CrMoV12-1 / 1.4923 | Φ30mm | Round Bar | Kgs | 300 | Hot-Rolled+Annealed+black | Enquiry |
| 1.4882 strip/sheet/plate stock | 3.5x200x1000-2000mm | Coil or Strip | Kgs | 200 | Cold-Rolled+Annealed | Enquiry |
| SA-437 Grade B4B/SUS 616 /422 Forged Bar | Dia.160xL | Round Bar | Kgs | 2120 | Forged+QT | Enquiry |
| H13 Tool Steel | 50x710xL | Flat or Square bar | PCS | 4 | Forged+Annealed+black | Enquiry |
| 1.2344(H13/X40CrMoV5-1/Z40CDV5) Stock List | Dia.182mm - Dia.510mm | Round Bar | Tons | 120 | Forged+Annealed+black | Enquiry |
| 1.2344 ESR Round Bar Stock List(2019-9-3) | Select | 0 | Select | Enquiry | ||
| Stainless Steel 422 / Alloy 422 AMS 5655 UNS S42200/616/B4B Round Bar Stock | Select | 0 | Select | Enquiry | ||
| 1.2343 ESR Stock list(2019-09-03) | Select | 0 | Select | Enquiry | ||
| 1.2367 ESR Forged Round Bar stock(2019-09-03) | Select | 0 | Select | Enquiry |