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AISI S21800 Details
AISI S21800 Standard Download
Category | Type | Grade | Microstructure | Designations |
---|---|---|---|---|
Grades | Stainless Steels | S21800 | Austenite | USA - AISI , |
Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
---|---|---|---|---|
C | - | 0.10 | ||
Si | 3.50 | 4.50 | ||
Mn | 7.00 | 9.00 | ||
P | - | 0.04 | ||
S | - | 0.03 | ||
Cr | 16.0 | 18.0 | ||
Ni | 8.00 | 9.00 | ||
N | 0.08 | 0.18 |
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) |
---|---|---|---|---|---|---|
287 (≥) | 435 (≥) | 43 | 31 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 444 |
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 |
---|---|---|---|---|---|---|---|
479 (≥) | 998 (≥) | 33 | 12 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 211 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
791 | 899 | 379 |
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 |
---|---|---|---|
S21800 | AISI | USA | Austenitic Chromium Nickel Manganese Stainless Steel |
A 240 S21800 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
A 276 S21800 | SAE | USA | Stainless Steel Bars and Shapes |
A 314 S21800 | SAE | USA | Stainless Steel Billets and Bars for Forging |
A 479 S21800 | SAE | USA | Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels |
A 580 S21800 | SAE | USA | Stainless Steel Wire |
A 959 S21800 | SAE | USA | Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels |
F 899 S21800 | SAE | USA | Standard Specification for Wrought Stainless Steels for Surgical Instruments |
S21800 | AISI | USA | Austenitic Chromium Nickel Manganese Stainless Steel |
SA-240 S21800 | AMS | USA | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
SA-276 S21800 | AMS | USA | Specification for Stainless Steel Bars and Shapes |
SA-479 S21800 | AMS | USA | Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels |
Nitronic 60®, UNS S21800, Alloy 218 | UNS | USA | used in the chemical, petrochemical, pharmaceutical, machine industries (hydraulic systems) and food industry for valves, flanges, pump parts, springs, heat exchangers, screws and even chains. |