Low Price 17-4pH Stainless Steel Bar & Rod & Shaft with Bright and Black Finishing

Low Price 17-4PH Stainless Steel Bar & Rod & Shaft with Bright and Black FinishingPRODUCTS SPECIFICATIONProducts17-4PH Stainless Steel Round BarStandardASTM GB DIN EN Diameter8 - 450mmLength6m /pcs or cutting as requestFinshingblack bar / Bright BarMain Grade201 301 303Cu 304 304L 309S 310S 316L 316Ti 317L 318 321 347 410 420 430 431 440a/b/c 904L 2205 2507 Hastelloy C276 C4 C22 Inconel 600 625 Incoloy 800 825 825H.etcServiceCutting, surface polishing , heat treatmentBrandWalsin  BAOSTEEL TISCO QINGSHANMATERIAL DESCRIPTION17-4PH Stainless Steel17-4 Precipitation Hardening also known as Type 630 is a chromium-copper precipitation hardening stainless steel used for applications requiring high strength and a moderate level of corrosion resistance. High strength is maintained to approximately 600 degrees Fahrenheit (316 degrees Celsius).General PropertiesAlloy 17-4 PH is a precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. The grade combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance.Mechanical properties can be optimized with heat treatment. Very high yield strength up to 1100-1300 MPa (160-190 ksi) can be achieved.The grade should not be used at temperatures above 572°F (300°C) or at very low temperatures. It has adequate resistance to atmospheric corrosion or in diluted acids or salts where its corrosion resistance is equivalent to Alloy 304 or 430. ApplicationsStandardsOffshore (foils, helicopter deck platforms, etc.)Food industryPulp and paper industryAerospace (turbine blades, etc.)Mechanical componentsNuclear waste casksASTM A693 grade 630 (AMS 5604B) UNS S17400EURONORM 1.4542 X5CrNiCuNb 16-4AFNOR Z5 CNU 17-4PHDIN 1.4542Corrosion ResistanceAlloy 17-4 PH withstands corrosive attacks better than any of the standard hardenable stainless steels and is comparable to Alloy 304 in most media.If there are potential risks of stress corrosion cracking, the higher aging temperatures then must be selected over 1022°F (550°C), preferably 1094°F (590°C). 1022°F (550°C) is the optimum tempering temperature in chloride media.1094°F (590°C) is the optimum tempering temperature in H2S media.The alloy is subject to crevice or pitting attack if exposed to stagnant seawater for any length of time.It is corrosion resistant in some chemical, petroleum, paper, dairy and food processing industries (equivalent to 304L grade).If you would like to know more about 17-4PH stainless steel then click 17-4PH Technical Data.   The properties mentioned below pertain to commonly available grade 630 bar products in ASTM A564. The specifications may not be similar to other forms such as forgings and plates.Composition Composition of 17-4PH stainless SteelThe compositional ranges of grade 630 stainless steels are displayed below:   GradeCMnSiPSCrNiCuNb+Ta630min.max-0.07-1-1-0.04-0.0301517.535350.150.45Mechanical PropertiesThe table below outlines the mechanical properties of grade 630 stainless steels:Table 2. Mechanical properties of grade 630 stainless steels ditionTensile Strength (MPa)Yield Strength 0.2% Proof (MPa)Elongation (% in 50mm)HardnessRockwell C (HR C)Brinell (HB)Solution Treated1105 typ1000 typ15 typ38 max363 maxCondition 9001310 min1170 min10 min40 min388 minCondition 1150930 min724 min16 min28 min277 min Physical PropertiesThe physical properties of grade 630 stainless steels are given in the following table:Table 3. Typical physical properties of grade 630 stainless steels 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°C0-315°C0-538°CAt 100°CAt 500°C630775019710.811.6-18.422.7460800Grade Specification ComparisonThe typical grade specifications of 630 stainless steels are tabulated below:able 4. Grade specifications for grade 630 stainless steelsGradeUNSNoOld BritishEuronormSwedishSSJapaneseJISBSEnNoName630S17400--1.4542X5CrNiCuNb16-4-SUS 630Table 5. Possible alternative grades to 630 stainless steelsGradeReasons for choosing 17/4PH (630)431431 Has higher toughness than 17/4PH. Better availability in some sizes.416Free-machining martensitic stainless steel - better for repetition machining. Lower cost.316Higher corrosion resistance of 316 to resist more severe environments, but with much lower strength than 17/4PH.2205Much better corrosion resistance than 17/4PH, with a lower strength (but not as low as 316). Corrosion ResistanceRelated StoriesSpecialist Chemical Manufacturer Atlanta Chemie to Acquire Eckart for 630 Million EurosTitanium Pipe Fittings from U.S. Titanium IndustryComprehensive Market Research Report on US Steel IndustryGrade 630 stainless steels have good corrosion resistance in many environments. They exhibit improved resistance against stress corrosion cracking, if aged at 550°C or more. However, grade 630 steels are less resistant to solution treated Condition A, and hence these steels, even with considerable hardness, should not be used in this condition.Heat ResistanceGr