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| ITEM | Standard Number | Descriptions |
|---|---|---|
| 1 | NF EN 2205 | Steel FE-PL1502 (25CrMo4) - 900 MPa <= Rm <= 1 100 MPa - Bars - De <= 40 mm |
| 2 | NF EN 2206 | Steel FE-PL1502 (25CrMo4) - 650 MPa <= Rm <= 850 MPa - Bars - De <= 150 mm |
| 3 | NF EN 2209 | Steel FE-PL1502 (25CrMo4) - 900 MPa <= Rm <= 1 100 MPa - Sheets, strips and plates - 0,5 mm <= a <= 20 mm |
| 4 | NF EN 2542 | Steel FE-PL1502 (25CrMo4) - Annealed - Bar and wire - De <= 40 mm - For prevailing torque nuts |
| 5 | NF EN 2543 | Steel FE-PL1502 (25CrMo4) - Annealed - Sheet and strip - 0,3 mm <= a <= 2 mm - For prevailing torque nuts |
| 6 | NF EN 10083-1 | Steels for quenching and tempering - Part 1: General technical delivery conditions |
| 7 | NF EN 10083-3 | Steels for quenching and tempering - Part 3: Technical delivery conditions for alloy steels |
| 8 | NF EN 10132-3 | Cold rolled narrow steel strip for heat treatment - Technical delivery conditions - Part 3: Steels for quenching and tempering |
| 9 | NF EN 10216-2 | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties |
| 10 | NF EN 10250-3 | Open die steel forgings for general engineering purposes - Part 3: Alloy special steels |
| 11 | NF EN 10263-4 | Steel rod, bars and wire for cold heading and cold extrusion - Part 4: Technical delivery conditions for steels for quenching and tempering |
| 12 | NF EN 10269 | Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
| 13 | NF EN 10297-1 | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes |
| 14 | NF EN 10305-1 | Steel tubes for precision applications - Technical delivery conditions - Part 1: Seamless cold drawn tubes |
| 15 | NF EN 10343 | Steels for quenching and tempering for construction purposes - Technical delivery conditions |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.22 | 0.29 | ||
| Si | 0.40 | |||
| Mn | 0.60 | 0.90 | ||
| P | 0.035 | |||
| S | 0.035 | |||
| Cr | 0.90 | 1.20 | ||
| Ni | ||||
| Mo | 0.15 | 0.30 |
| Tensile strength | 287～814 | σb/MPa |
| Yield Strength | 984 | σ 0.2 ≥/MPa |
| Elongation | 95 | δ5≥(％) |
| ψ | - | ψ≥(％) |
| Akv | - | Akv≥/J |
| HBS | 709～139 | - |
| HRC | 30 | - |
| Thermal expansion | 76-32 | e-6/K |
| Thermal conductivity | 49-13 | W/m.K |
| Specific heat | 450-460 | J/kg.K |
| Melting temperature | 4466-3741 | 째C |
| Density | 4049-0586 | kg/m3 |
| Resistivity | 0.50-0.60 | Ohm.mm2/m |
| Steel Grade | Specification | Processing range(mm) |
| 25CrMo4 Stainless Steels | Round Bar and Hollow Bar | Φ1 to Φ2000 |
| Square and Flat Steel | Φ10 to Φ100 | |
| Plate and Sheet | 0.08-800(Thickness)*10-1500(Width)*Length | |
| Tube or Pipe | OD:Φ4-410; WT:1-35 mm; Lenght:10-12000 | |
| Coil and Strip Steel | THK:0.1mm Width:1500mm | |
| Forged | Ring/Cylindrical/Disk |