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1.4104 Stainless Steel (X14CrMoS17 Material)
DIN EN 1.4104 stainless steel (X14CrMoS17) is a kind of martensitic stainless steel containing molybdenum. The higher sulfur content makes it more suitable for machining. It has good machining properties, good mechanical properties, and good magnetic properties. However, the addition of sulfur reduces its weldability and corrosion resistance.
DIN EN 1.4104 Material Properties
EN 1.4104 stainless steel properties and specifications are summarized in the following tables including chemical composition, mechanical properties, hardness, heat treatment, etc.
Chemical Composition
Table-1, X17CrNi16-2 (1.4104 material) chemical composition is listed in the following table based on cast analysis.
| 1.4104 Material Chemical Composition, % | ||||||||
| Standard | Designation (Steel Number) | C | Si, ≤ | Mn, ≤ | P, ≤ | S, ≤ | Cr | Mo |
| EN 10088-2; EN 10088-3 | X14CrMoS17 (1.4104) | 0,10-0,17 | 1,00 | 1,50 | 0,040 | 0,15-0,35 | 15,5-17,5 | 0,20-0,60 |
Physical Properties
DIN EN 1.4104 stainless steel physical properties are listed in the table below such as density, melting point, specific heat, electrical resistivity, elastic modulus (modulus of elasticity), thermal conductivity, and coefficient of thermal expansion (CTE).
Notes:
- 10-6·K-1 = 10-6/K
- 1 Ω·mm²/m = 1 μΩ·m
- 1 g/cm3 = 1 kg/dm3 = 1000 kg/m3
- 1 GPa = 1 kN/mm2
- 1 MPa = 1 N/mm2
| Table-2, Physical Properties | |
| Density, g/cm3 (lb/in3) | 7,7 (0.278) |
| Magnetic | Yes |
| Specific heat capacity, J/(Kg·K) | 460 at 20 °C (68 °F) |
| Electrical resistivity, μΩ·m | 0.70 at 20 °C (68 °F) |
| Modulus of elasticity (Elastic Modulus), Gpa (103 ksi) | 215 (31.2) at 20 °C (68 °F) |
| 212 (30.7) at 100 °C (212 °F) | |
| 205 (29.7) at 200 °C (392 °F) | |
| 200 (29) at 300 °C (572 °F) | |
| 190 (27.5) at 400 °C (752 °F) | |
| Thermal conductivity, (W/m·K) | 25 at 20 °C (68 °F) |
| Mean coefficient of thermal expansion, (10-6/K) | 10,0 at 20-100 °C (68-212 °F) |
| 10,5 at 20-200 °C (68-392 °F) | |
| 10,5 at 20-300 °C (68-572 °F) | |
| 10,5 at 20-400 °C (68-752 °F) | |
DIN EN 1.4104 Stainless Steel Mechanical Properties
DIN EN 1.4104 stainless steel mechanical properties are given in the datasheet below including tensile strength, yield strength, elongation, reduction in area, Brinell and Rockwell hardness, etc.
| Table-3, Mechanical properties for bars at room temperature of steels in the cold work hardened (2H) condition | |||||
| Standard | Designation (Steel Number) | Tensile strength level | 0,2 %-proof strength, Mpa (ksi), ≥ | Tensile strength, Mpa (ksi) | Elongation after fracture, %, ≥ |
| EN 10088-2; EN 10088-3 | X14CrMoS17 (1.4104) | +C550 | 440 | 550 to 750 (80-108) | 15 |
| When inquiring and ordering, the maximum diameter of this tensile strength class shall be agreed; it should not be greater than 25 mm. | |||||
| Table-4, Mechanical properties for bright bars at room temperature of heat-treated 1.4104 stainless steel in conditions 2H, 2B, 2G or 2P | ||||||||
| Standard | Steel Grade (Steel Number) | Thickness (t) or diameter (d) in mm (in.) | Annealed | Quenched + tempered | ||||
| Tensile strength, Mpa (ksi), ≤ | Hardness, HB, ≤ | Heat treatment condition | 0,2 % yield strength, Mpa (ksi), ≥ | Tensile strength, Mpa (ksi) | Elongation in 5mm min, %, ≥, (long.) | |||
| EN 10088-3 | X14CrMoS17 (1.4104) | ≤ 10 (only for rounds) | 880 (127) | 280 | + QT650 | 580 (84) | 700-980 (101-142) | 7 |
10 | 880 (127) | 280 | 530 (77) | 700-980 (101-142) | 7 | | |||
| 16 < t≤ 40 | 800 (116) | 250 | 500 (72) | 650-930 (94-135) | 9 | |||
40 | 760 (110) | 230 | 500 (72) | 650-880 (94-127) | 10 | | |||
| 63 < t ≤ 160 | 730 (105) | 220 | 500 (72) | 650-850 (116-123) | 10 | |||
| Table-5, Mechanical properties at room temperature of annealed wire in 2D condition | ||||
| Standard | Steel Grade (Steel Number) | Nominal dimension (d) mm | Tensile strength, Mpa (ksi), ≤ | Elongation, %, ≥ |
| EN 10088-3 | X14CrMoS17 (1.4104) | 0,50 | 1100 (160) | 10 | |
| 1,00 < d≤ 3,00 | 1050 (152) | 10 | ||
3,00 | 1000 (145) | 10 | | ||
| 5,00 < d ≤ 16,00 | 950 (138) | 15 | ||
| If skin passed (i. e. less than 5 % reduction in cross section), the maximum tensile strength might be increased by up to 50 MPa | ||||
| Table-6, Tensile strength of wire in diameters of 0,05 mm (0.002 in) and above in 2H condition | |||
| Standard | Steel Grade (Steel Number) | Tensile strength levels | Range of tensile strength, MPa (ksi) |
| EN 10088-3 | X14CrMoS17 (1.4104) | +C500 | 500 to 700 (72-101) |
| +C600 | 600 to 800 (87-116) | ||
| +C700 | 700 to 900 (101-130) | ||
| +C800 | 800 to 1000 (116-145) | ||
| +C900 | 900 to 1100 (130-160) | ||
| +C1000 | 1000 to 1250 (145-181) | ||
| +C1100 | 1100 to 1350 (160-196) | ||
| +C1200 | 1200 to 1450 (174-210) | ||
| +C1400 | 1400 to 1700 (203-246) | ||
| +C1600 | 1600 to 1900 (232-275) | ||
| +C1800 | 1800 to 2100 (261-304) | ||
| Not all grades have all tensile strength grades or all diameters. Guidance data for the nominal size (d) depending on the strength class is given in Table-7. | |||
| Table-7, 1.4104 corrosion resistant steel wire in the cold work-hardened condition, martensitic and precipitation hardening grade | |||
| Standard | Designation (Steel Number) | Typically available tensile strength levels | Diameters in mm |
| EN 10088-2; EN 10088-3 | X14CrMoS17 (1.4104) | +C500 | All diam. |
| +C600 | <20 | ||
| +C700 | < 20 | ||
| +C800 | < 15 | ||
| +C900 | < 10 | ||
EN 1.4104 Stainless Steel Heat Treatment
The following contents give DIN 1.4104 stainless steel heat treatment temperature of including annealing, hot forming, quenching and termpering, etc.
| Table-8, Guidelines on the temperatures for hot forming and heat treatment of 1.4104 steel | |||||||||
| Standard | Steel Grade (Steel Number) | Hot forming | Heat treatment symbol | Annealing | Quenching | Tempering Temperature, °C (°F) | |||
| Temperature, °C (°F) | Type of cooling | Temperature, °C (°F), ① | Type of cooling | Temperature, °C (°F), ① | Type of cooling | ||||
| EN 10088-3 | X14CrMoS17 (1.4104) | 1100 to 800 (2010 to 1470) | air | +A | 750 to 850 (1385-1565) | furnace, air | – | – | – |
| + QT650 | – | – | 950 to 1070 (1745-1960) | oil, air | 550 to 650 (1025-1200) | ||||
| Notes: +A: Annealed +QT: Quenched and Tempered ①: If the heat treatment is performed in a continuous furnace, it is generally preferred that the upper limit of the specified range or even exceed the specified range. | |||||||||
Applications
Used for automatic processing of construction parts in water and steam, such as screws, spindles, shafts, pins, etc.
DIN EN 1.4104 Equivalent Material
EN 1.4104 stainless steel equivalent to US ASTM AISI SAE, ISO, Japanese JIS and Chinese GB standard (For reference).
| DIN EN 1.4104 Steel X14CrMoS17 Material Equivalent | |||||||||
| European Union | US | ISO | China | Japan | |||||
| Standard | Designation (Material Number) | Standard | Grade (UNS) | Standard | Grade (ISO number ) | Standard | Name [Code] | Standard | Grade |
| EN 10088-2; EN 10088-3; EN 10088-1 | X14CrMoS17 (1.4104) | AISI; ASTM A895 ASTM A959; ASTM A581/A581M; ASTM A582/A582M | AISI 430F (UNS S43020) | ISO 15510 | X7CrS17 (4004-430-20-I) | GB/T 1220 | Y1Cr17, Y10Cr17 (New designation) [S11717] | JIS G4303 | SUS430F |
AISI 304 Stainless Steel, 18-8 Stainless Steel, SS 304, AISI 1080 Steel, AISI 1018 Steel
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