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AISI S40300 Details
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| Category | Type | Grade | Microstructure | Designations | 
|---|---|---|---|---|
| Grades | Stainless Steels | S40300 | Martensite | USA - AISI , | 
| Elements | Min.(≥) | Max.(≤) | Similar | Remarks | 
|---|---|---|---|---|
| C | - | 0.15 | ||
| Mn | - | 1.00 | ||
| Si | - | 0.50 | ||
| P | - | 0.04 | ||
| S | - | 0.03 | ||
| Cr | 11.50 | 13.00 | ||
| Ni | - | - | ||
| Mo | - | - | 
Martensitic Stainless Steel (Hardenable by Heat Treatment)
| 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) | 
|---|---|---|---|---|---|---|
| 818 (≥) | 588 (≥) | 43 | 44 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 141 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 824 (≥) | 576 (≥) | 42 | 33 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 331 | |
| Temp. °C/°F  | 
                      Creep strain limit (10000h) (Rp1,0) N/mm2  | 
                      Creep rupture strength (10000h) (Rp1,0) N/mm2  | 
                      |||||
| 863 | 874 | 674 | 
| 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 | 
|---|---|---|---|
| GH4033 | GB | China | Classification and designation for superalloys and high temperature intermetallic materials  | 
                  
| GH4037 | GB | China | Classification and designation for superalloys and high temperature intermetallic materials  | 
                  
| A 240 S30403 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications  | 
                  
| A 249 S30403 | SAE | USA | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes  | 
                  
| A 269 S30403 | SAE | USA | Seamless and Welded Austenitic Stainless Steel Tubing for General Service  | 
                  
| A 270 S30403 | SAE | USA | Seamless and Welded Austenitic Stainless Steel Sanitary Tubing  | 
                  
| A 276 S30403 | SAE | USA | Stainless Steel Bars and Shapes  | 
                  
| A 314 S30403 | SAE | USA | Stainless Steel Billets and Bars for Forging  | 
                  
| A 358 S30403 | SAE | USA | Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications  | 
                  
| A 409 S30403 | SAE | USA | Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service  | 
                  
| A 473 S30403 | SAE | USA | Stainless Steel Forgings  | 
                  
| A 478 S30403 | SAE | USA | Chromium-Nickel Stainless Steel Weaving and Knitting Wire  | 
                  
| A 493 S30403 | SAE | USA | Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging  | 
                  
| A 580 S30403 | SAE | USA | Stainless Steel Wire  | 
                  
| A 632 S30403 | SAE | USA | Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service  | 
                  
| A 666 S30403 | SAE | USA | Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar  | 
                  
| A 688 S30403 | SAE | USA | Welded Austenitic Stainless Steel Feedwater Heater Tubes  | 
                  
| A 778 S30403 | SAE | USA | Welded, Unannealed Austenitic Stainless Steel Tubular Products  | 
                  
| A 813 S30403 | SAE | USA | Single- or Double-Welded Austenitic Stainless Steel Pipe  | 
                  
| A 814 S30403 | SAE | USA | Cold-Worked Welded Austenitic Stainless Steel Pipe  | 
                  





