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| Category | Steel grade | Standard | Country | Application |
|---|---|---|---|---|
| Stainless Steels | 2S.137 | B.S. | UK | Specification for high chromium-nickel corrosion-resisting steel bright bars (free machining) (880-1080 MPa: limiting ruling section 70 mm) |
| Stainless Steels | 2S.131 | B.S. | UK | Specification for high thermal expansion steel billets, bars, forgings and parts (620 MPa: limiting ruling section 150 mm) |
| Stainless Steels | 2S.130 | B.S. | UK | Specification for 18/9 chromium-nickel corrosion-resisting steel (niobium stabilized) billets, bars, forgings and parts (540 MPa: limiting ruling section 150 mm) |
| Stainless Steels | 2S.129 | B.S. | UK | Specification for 18/9 chromium-nickel corrosion-resisting steel (titanium stabilized) billets, bars, forgings and parts (540 MPa: limiting ruling section 150 mm) |
| Stainless Steels | 2S.111 | B.S. | UK | Specification for aircraft material. Nickel-chromium-tungsten valve steel |
| Stainless Steels | 443S65 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Valve steels |
| Stainless Steels | 401S45 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Valve steels |
| Stainless Steels | 381S34 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Valve steels |
| Stainless Steels | 352S54 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Valve steels |
| Stainless Steels | 352S52 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Valve steels |
| Stainless Steels | 349S54 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Valve steels |
| Stainless Steels | 349S52 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Valve steels |
| Stainless Steels | 331S42 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Valve steels |
| Stainless Steels | 331S40 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Valve steels |
| Stainless Steels | NA21 | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA20 | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA19 | B.S. | UK | Specification for nickel and nickel alloys: wire |
| Stainless Steels | NA18 | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA17 | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA16 | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA15H | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA15 | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA14 | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA13 | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA12 | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA11 | B.S. | UK | Specification for nickel and nickel alloys: bar |
| Stainless Steels | NA39 | B.S. | UK | Filler rods and wires for gas-shielded arc weldingSpecification for nickel and nickel alloys |
| Stainless Steels | NA38 | B.S. | UK | Filler rods and wires for gas-shielded arc welding; Nickel and nickel alloys |
| Stainless Steels | NA37 | B.S. | UK | Filler rods and wires for gas-shielded arc welding; Nickel and nickel alloys |
| Stainless Steels | NA36 | B.S. | UK | Filler rods and wires for gas-shielded arc weldingSpecification for nickel and nickel alloys |
| Stainless Steels | NA35 | B.S. | UK | Filler rods and wires for gas-shielded arc weldingSpecification for nickel and nickel alloys |
| Stainless Steels | NA34 | B.S. | UK | Filler rods and wires for gas-shielded arc weldingSpecification for nickel and nickel alloys |
| Stainless Steels | NA32 | B.S. | UK | Filler rods and wires for gas-shielded arc weldingSpecification for nickel and nickel alloys |
| Stainless Steels | NA3 | B.S. | UK | Specification for nickel-copper alloy castings |
| Stainless Steels | NA2 | B.S. | UK | Specification for nickel-copper alloy castings |