A 803 Grade 25-4-4 Enquiry | Print this page
SAE A 803 Grade 25-4-4 Details
SAE A 803 Grade 25-4-4 Standard Download
Category | Type | Grade | Microstructure | Designations |
---|---|---|---|---|
Grades | Stainless Steels | A 803 Grade 25-4-4 | Precipitation-Hardening | USA - SAE , A 803/A 803M (2012) - Welded Ferritic Stainless Steel Feedwater Heater Tubes |
Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
---|---|---|---|---|
C | - | 0.025 | ||
Si | - | 0.75 | ||
Mn | - | 1.00 | ||
P | - | 0.04 | ||
S | - | 0.04 | ||
Ni | 3.35 | 4.50 | ||
Cr | 24.50 | 26.00 | ||
Al | - | - | ||
Cu | - | 0.50 | ||
Ti | - | - | ||
Fe | - | - | ||
N | - | 0.035 | ||
Mo | 3.50 | 4.50 |
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) |
---|---|---|---|---|---|---|
181 (≥) | 477 (≥) | 43 | 12 | 12 | 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 |
---|---|---|---|---|---|---|---|
277 (≥) | 582 (≥) | 32 | 43 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 322 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
812 | 282 | 515 |
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 176 S44635 | SAE | USA | Stainless and Heat-Resisting Chromium Steel Plate, Sheet, and Strip |
A 240 S44635 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
A 268 S44635 | SAE | USA | Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
S44635 | AISI | USA | Ferritic Chromium Molybdenum Nickel Stainless Steel (25-4-4) |
SA-240 S44635 | AMS | USA | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
SA-268 S44635 | AMS | USA | Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
A 268 25-4-4 | SAE | USA | Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
A 791 Grade 25-4-4 | SAE | USA | Aluminum-Zinc Alloy-Coated Wire Strand |
A 803 Grade 25-4-4 | SAE | USA | Welded Ferritic Stainless Steel Feedwater Heater Tubes |
A 959 Type 25-4-4 | SAE | USA | Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels |
K42544 | AISI | USA | Alloy Steel |
SA-240 Type 25-4-4 | AMS | USA | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
SA-268 25-4-4 | AMS | USA | Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
SA-803 25-4-4 | AMS | USA | Specification for Welded Ferritic Stainless Steel Feedwater Heater Tubes |