Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
Super Duplex steels also find applications in the chemical, paper, cryogenic and power industries for parts and subassemblies such as pumps, shafts, bushes, aerial constructions, heat exchangers, coolers, chemical transport pipelines, special tanks, valves, snd screws.
| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | 1.4501, 1.4410, S32760, S32750, X2CrNiMoN25-7-4 | Austenitic-Ferritic(Duplex steel) | France - AFNOR , NF EN 10028-7 - Flat products made of steels for pressure purposes - Part 7: Stainless steels NF EN 10088-1 - Stainless steels - Part 1: List of stainless steels NF EN 10088-2 - Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes NF EN 10088-3 - Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes NF EN 10088-4 - Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes NF EN 10088-5 - Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes NF EN 10216-5 (2004) - Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes NF EN 10217-7 - Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes NF EN 10222-5 - Steel forgings for pressure purposes - Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels NF EN 10250-4 - Open die steel forgings for general engineering purposes - Part 4: Stainless steels NF EN 10253-3 - Butt-welding pipe fittings - Part 3: Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements NF EN 10253-4 - Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements NF EN 10272 - Stainless steel bars for pressure purposes NF EN 10296-2 (2005) - Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel NF EN 10297-2 (2005) - Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.030 | ||
| Si | - | 1.00 | ||
| Mn | - | 2.00 | ||
| P | - | 0.035 | ||
| S | - | 0.015 | ||
| Cr | 24.00 | 26.00 | ||
| Mo | 3.00 | 4.50 | ||
| Ni | 6.00 | 8.00 | ||
| N | 0.20 | 0.35 |
| 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) |
|---|---|---|---|---|---|---|
| 474 (≥) | 491 (≥) | 23 | 33 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 124 |
| 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 |
|---|---|---|---|---|---|---|---|
| 557 (≥) | 499 (≥) | 33 | 11 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 442 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 633 | 199 | 613 |
| 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 |
|---|---|---|---|
| X2CrNiMoN25-7-4 | B.S. | UK | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
| 1.4410 | B.S. | UK | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
| X2CrNiMoN25-7-4 | AFNOR | France | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
| 1.4410 | AFNOR | France | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
| 1.4501, 1.4410, S32760, S32750, X2CrNiMoN25-7-4 | AFNOR | France | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
| Y1Cr18Ni9 | GB | China | Improve the machinability, ablation resistance. Suitable for automatic lathe production of bolt and nut |
| 1Cr18Ni9 | GB | China | High strength after cold forming, but elongation than 1 cr17ni7 slightly worse. Used in architectural decoration parts |
| 1Cr18Mn10Ni5Mo3N | GB | China | Of urea with good corrosion resistance, can produce urea corrosion of the equipment. |
| 1Cr17Ni7 | GB | China | High strength after cold forming. Used in railway vehicle, conveyor belt, bolt and nut, etc |
| Y1Cr18Ni9Se | GB | China | Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws |
| 0Cr18Ni9 | GB | China | Seamless stainless steel tubes for boiler and heat exchanger |
| 00Cr19Ni10 | GB | China | Carbon content lower than 0Cr19ni9 steel, excellent intergranular corrosion resistance, is used for welding after the class is not processed parts |
| 1Cr17Mn6Ni5N | GB | China | Nickel steel grade, instead of number 1 cr17ni7 and magnetism after cold working, used in railway vehicle, etc |
| 1Cr18Mn8Ni5N | GB | China | Nickel steel, instead of 1cr18ni9 |
| 0Cr19Ni9N | GB | China | Based on 0cr19ni9 plus N, strength increase and the plastic is not down. Reduce the thickness of the material. As a structure with strength components |
| 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 |