17-4PH, 630, 05Cr17Ni4Cu4Nb, S17400, 1.4542, X5CrNiCuNb17-4-4 a precipitation hardened martensitic stainless steel alloy that is melted in AOD, AOD+ESR, or AOD+VAR melt type, is one of the most popular and most commonly used stainless chromium-nickel alloy steels with copper additive, This alloy offers good corrosion resistance and excellent strength., precipitation hardened with martensitic structure. It is characterized by high corrosion resistance while maintaining high strength properties, including hardness.Steel can operate in the temperature range from -29 ℃ to 343 ℃, while retaining relatively good parameters. In addition, the materials in this grade are characterized by relatively good ductility and their corrosion resistance is comparable to 1.4301 / X5CrNi18-10.Bearing in mind that it is a precipitation hardened steel, it should be applied after supersaturation and aging. In the delivery condition +A, the products show no martensitic structure, resulting in significantly less corrosion resistance.Steel can be welded by TIG, but the welding process requires the use of an annealed material. Otherwise the material at the joints will not retain the proper structure. Furthermore, at the expense of a slight loss of corrosion resistance, the products can be nitrided to achieve a hardened topcoat.17-4PH, and X5CrNiCuNb16-4 / 1.4542 is provided, among others, in the form of round bars, sheets, flat bars and cold-rolled tapes.The material is widely used in the aerospace, marine, paper, energy, offshore and food industries for heavy-duty machine components, bushings, turbine blades, couplings, screws, drive shafts, nuts, measuring devices. Application of 17-4PH, 630, 05Cr17Ni4Cu4Nb, S17400, 1.4542, X5CrNiCuNb17-4-4
17-4PH is one of the most popular and most commonly used stainless chromium-nickel alloy steels with copper additive, precipitation hardened with martensitic structure. It is characterized by high corrosion resistance while maintaining high strength properties, including hardness.
Steel can operate in the temperature range from -29 ℃ to 343 ℃, while retaining relatively good parameters. In addition, the materials in this grade are characterized by relatively good ductility and their corrosion resistance is comparable to 1.4301 / X5CrNi18-10.
Bearing in mind that it is a precipitation hardened steel, it should be applied after supersaturation and aging. In the delivery condition +A, the products show no martensitic structure, resulting in significantly less corrosion resistance.
Steel can be welded by TIG, but the welding process requires the use of an annealed material. Otherwise the material at the joints will not retain the proper structure. Furthermore, at the expense of a slight loss of corrosion resistance, the products can be nitrided to achieve a hardened topcoat.
17-4PH, and X5CrNiCuNb16-4 / 1.4542 is provided, among others, in the form of round bars, sheets, flat bars and cold-rolled tapes.
The material is widely used in the aerospace, marine, paper, energy, offshore and food industries for heavy-duty machine components, bushings, turbine blades, couplings, screws, drive shafts, nuts, measuring devices.
17-4PH, AISI 630 stainless steel grade is reinforced by separation and at the same time is one of the most popular types of stainless steel, which mainly contains chromium, nickel and copper. It contains such chemical elements as copper, carbon, manganese, sulphur, phosphorus, silicon, nickel, molybdenum, niobium, copper, nitrogen. This steel grade is characterized by high ductility, abrasion resistance and versatile use in many types of industry. In sea water, steel is susceptible to crevice corrosion.
This grade stainless steel 1.4542 on martensitic structure is used in the aerospace, energy, marine, food. In addition, the steel of the symbol is used in astronautics and the paper industry. It produced turbine blades, fittings, screws, drive shafts, a variety of nuts, bushings, components of machines, and the elements necessary for building measuring devices. Steel plants are being built. Is used in the engineering industry and petroleum. However, before it will be possible to use steel it is very important to use the process of solution treating and ageing. Interestingly, species with delivery + A martensitic structure has not by what is also less resistant to corrosion and acid environment.
Martensitic is usually provided in the form of a round steel bar, sheet metal or flat cold-rolled strips. However, before it will be available in this form, first you’ll need to is its suitable heat treatment and a variety of technological processes. The hardness of this species is less than 38 HRC or 363 HB depending on the selected option. Stainless steel has a yield of more than 1170 MPa and its tensile strength is greater than the 1310 MPa. This grade of steel chrome-nickel with copper has high corrosion resistance and very good divergency. Impressive is also the hardness of the stainless steel. The best conditions to work in temperatures from-29 ° c to 343 ° c without a change in their properties. In addition, it has a very good ductility and corrosion resistance is comparable to steel 1.4301. Steel can be welded using the appropriate method TIG, however, the State of the steel must be annealed. In another case, in places call the material might not have actually retained the structure. This grade can be nitrided, but then the resulting product has a lower immune property. Nitriding process aims to strengthen the top layer.
17-4 Steel Bars, Wire, and Forgings are usually a single-melt product offered to AMS 5643 for aerospace applications. A CEVM (Consumable Electrode Vacuum Melt) or VAR (Vacuum Arc Remelt) product is specified in AMS 5622. Both specifications require that bars and forgings be restricted to 8” Diameter or less, or 8” least distance between parallel sides. A provision is included to allow larger sizes, provided that the Buyer and Seller agree upon mechanical properties for the size in question.
| Grades | Chemical Composition WT % | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | P | S | Cr | Ni | Mo | Nb | Cu | N | |
| 17-4, 17-4 PH, 17-4PH, UNS S17400, 630 | Max 0.07 | Max 1.0 | Max 1.0 | Max 0.04 | Max 0.03 | 15.0 - 17.5 | 3.0 - 5.0 | - | 0.15 - 0.45 | 3.0 - 5.0 | - |
| X5CrNiCuNb16-4, X 5 CrNiCuNb 16-4, 1.4542 | Max 0.07 | Max 1.5 | Max 0.7 | Max 0.04 | Max 0.03 | 15.0 - 17.0 | 3.0 - 5.0 | Max 0.6 | Max 0.45 | 3.0 - 5.0 | - |
| X5CrNiCuNb17-4-4, X 5 CrNiCuNb 17-4-4, 1.4548 | Max 0.07 | Max 1.0 | Max 1.0 | Max 0.025 | Max 0.025 | 15.0 - 17.5 | 3.0 - 5.0 | - | 0.15 - 0.45 | 3.0 - 5.0 | - |
| X4CrNiCuNb16-4, X 4 CrNiCuNb 16 4, 1.4540 | Max 0.06 | Max 1.0 | Max 1.0 | - | - | 15.0 - 17.0 | 3.5 - 5.0 | - | 0.15 - 0.40 | 2.5 - 4.0 | Max 0.05 |
| Z7CNU17-04, Z 7 CNU 17-04, 17-4 DP, X17U4 | Max 0.07 | Max 1.0 | Max 0.75 | Max 0.04 | Max 0.015 | 15.5 - 17.5 | 4.0 - 5.0 | - | 0.15 - 0.45 | 3.0 - 5.0 | - |
| Z7CNU16-04, Z 7 CNU 16-04, 174 PH | Max 0.07 | Max 1.0 | Max 0.75 | Max 0.035 | Max 0.025 | 15.0 - 17.5 | 3.0 - 5.0 | Max 0.5 | 0.15 - 0.45 | 3.0 - 5.0 | - |
| 05Ch16N4D2B, 05Х16Н4Д2Б | Max 0.07 | Max 1.8 | Max 0.8 | Max 0.03 | Max 0.03 | 15.0 - 17.5 | 2.0 - 5.0 | - | 0.05 - 0.5 | 1.5 - 3.0 | - |
| 07Ch16N4D4B-Sh, 07Х16Н4Д4Б-Ш, 07Ch14N4DB, 07Х14Н4ДБ | Max 0.7 | Max 1.0 | Max 1.0 | Max 0.045 | Max 0.03 | 15.0 - 17.0 | 3.0 - 5.0 | Max 0.3 | Max 0.45 | 3.0 - 5.0 | - |
| 05Cr17Ni4Cu4Nb, GB/T 8732-2014, | Max 0.055 | Max 1.0 | Max 1.0 | Max 0.03 | Max 0.02 | 15.0 - 16.0 | 3.8 - 4.5 | Max 0.3 | 0.15-0.35 | 3.0 - 3.7 | |
| Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Elec Resistivity (nΩ.m) | |||||
| 0-100°C | 0-315°C | 0-538°C | At 100°C | At 500°C | |||||
| 630 | 7750 | 197 | 10.8 | 11.6 | - | 18.4 | 22.7 | 460 | 800 |
17-4PH, 630, 05Cr17Ni4Cu4Nb, S17400, 1.4542, X5CrNiCuNb17-4-4 stainless steels can be welded using all conventional methods, and they do not require pre-heating. Care should be taken in designing and welding of high strength steels to prevent weldment stresses.
17-4PH, 630, 05Cr17Ni4Cu4Nb, S17400, 1.4542, X5CrNiCuNb17-4-4 stainless steels can be machined in their solution-treated condition. They have machining rates similar to that of grade 304 steels.
| Grade | Shape | Dimensionmm | Qty.kg |
|---|---|---|---|
| 17-4PH | Round bar | 200 | 0.94 |
| 17-4PH | Flat bar | 208.00*98.00*915 | 0.495 |
| 17-4PH | Flat bar | 208.00*98.00*915 | 0.495 |
| 17-4PH | Flat bar | 208.00*98.00*915 | 0.490 |
| 17-4PH | Flat bar | 208.00*98.00*915 | 0.505 |
| 17-4PH | ESR Ingot | 23680 | |
| 17-4PH | Forged flat bar | 85×173×4250 | 1464 |
Steel grade
Special steel