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UNS B-4 Details
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| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | B-4 | Precipitation-Hardening | USA - UNS , SAE AMS T 9046 (2002) - Titanium and Titanium Alloy, Sheet, Strip, and Plate |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.01 | ||
| Si | - | 0.05 | ||
| Mn | - | 1.50 | ||
| P | - | 0.04 | ||
| S | - | 0.01 | ||
| Ni | - | remaining | ||
| Cr | 0.50 | 1.50 | ||
| Al | 0.10 | 0.50 | ||
| Cu | - | 0.50 | ||
| Ti | - | - | ||
| Fe | 1.00 | 6.00 | ||
| Mo | 26.00 | 30.00 | ||
| Co | - | 2.50 |
| 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) |
|---|---|---|---|---|---|---|
| 536 (≥) | 351 (≥) | 12 | 24 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 214 |
| 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 |
|---|---|---|---|---|---|---|---|
| 638 (≥) | 559 (≥) | 41 | 43 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 313 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 266 | 772 | 736 |
| 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 |
|---|---|---|---|
| B 402 C70600 | SAE | USA | Copper-nickel alloy plate and sheet for pressure vessels |
| B 402 C71500 | SAE | USA | Copper-nickel alloy plate and sheet for pressure vessels |
| B 402 C72200 | SAE | USA | Copper-nickel alloy plate and sheet for pressure vessels |
| B 403 AM100A | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 AZ81A | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 AZ91C | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 AZ91E | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 AZ92A | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 AZ92A | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 EQ21A | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 EZ33A | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 K1A | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 QE22A | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 ZE41A | SAE | USA | Magnesium-Alloy Investment Castings |
| B 403 ZK61A | SAE | USA | Magnesium-Alloy Investment Castings |
| B 407 N06811 | SAE | USA | Nickel-Iron-Chromium Alloy Seamless Pipe and Tube |
| B 407 N08120 | SAE | USA | Nickel-Iron-Chromium Alloy Seamless Pipe and Tube |
| B 407 N08801 | SAE | USA | Nickel-Iron-Chromium Alloy Seamless Pipe and Tube |
| B 407 N08810 | SAE | USA | Nickel-Iron-Chromium Alloy Seamless Pipe and Tube |
| B 407 N08811 | SAE | USA | Nickel-Iron-Chromium Alloy Seamless Pipe and Tube |