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|Precipitation Hardening Stainless Steels:||17-4PH 17-7PH PH15-7Mo||Product:||17-4PH 17-7PH PH15-7Mo Stainless Steel Strip In Coil|
|Size Range:||0.1~10.0X420mm||Delivery State:||Condition A, C|
630 stainless steel,
17 7 ph stainless steel
17-4PH 17-7PH PH15-7Mo Stainless Steel Strip In Coil Or Cut lengths Sheets
PRECIPITATION-HARDENING (PH) STAINLESS STEELS
There are two general areas of PH grade stainless steels: martensitic and semi-austenitic.
The martensitic group includes 17-4PH Stainless Steel and 15-5PH Stainless Steel chromium nickel
(CrNi), with niobium (Nb) and copper additions.
They develop their high strength and hardness through heat treatment, which precipitates the copper.
The martensitic PH steels are used in aerospace, chemical and petrochemical, and food processing applications.
The semi-austenitic grades are 17-7PH Stainless Steel and PH 15-7Mo Stainless Steel.
They are austenitic in the annealed state, but martensitic in the hardened condition.
17-7PH Stainless Steel has excellent high strength and fatigue properties, and is used in aerospace components.
PH 15-7Mo Stainless Steel is used in applications requiring high strength and hardness, such as retaining rings,
springs, and aircraft bulkheads.
17-4PH precipitation hardening stainless steel (S17400), is a chromium-nickel-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°F (316°C). This alloy is designated Grade or Type 630 in several specifications.
The S17400 alloy is martensitic in structure in the annealed condition and is further strengthened by a low temperature treatment which precipitates a copper containing phase in the alloy. In comparison to many alloys in the precipitation hardening family, the S17400 alloy requires a simple heat treatment; a one step process conducted at a temperature in the range 900°F (482°C) to 1150°F (621°C) depending on the combination of strength and toughness desired. A wide range of properties can be produced by this one step heat treatment. Heat treatment in the 900°F (482°C) range produces highest strength.
17-4PH stainless steel in sheet, strip, and plate product forms. 17-4PH stainless steel is produced in compliance with aerospace specifications such as AMS 5604 and standard industrial specifications such as ASTM A693 and ASME SA-693.
17-7PH Precipitation Hardening Alloy (S17700) is a chromium-nickel-aluminum precipitation hardening stainless steel used for applications requiring high strength and a moderate level of corrosion resistance.
The low temperature allows minimum distortion compared to conventional quench and temper hardening processes. In addition to material produced by the standard refining procedures, material which has been vacuum arc or electroslag remelted is available for further increase in resistance to fatigue, for those applications subject to cyclic stresses.
PH15-7Mo Precipitation Hardening Alloy (S15700, AISI Type 632) is a chromium-nickel-molybdenum-aluminum semi-austenitic precipitation hardening stainless steel used for applications requiring high strength and a moderate level of corrosion resistance.
In addition to material produced by the standard refining procedures, material which has been vacuum arc or electroslag re-melted is available for further increase in resistance to fatigue, for those applications subject to cyclic stresses.
15-5PH precipitation hardening stainless steel (S15500) is a variant of the older
17-4PH (S17400) chromium-nickel-copper precipitation hardening stainless steel.
Both alloys exhibit high strength and moderate corrosion resistance.
High strength is maintained to approximately 600°F (316°C).
This alloy is designated Grade or Type XM-12 in several specifications.
15-5 stainless alloy was designed to have greater toughness than S17400, especially in the through-thickness (short transverse) direction. This improved toughness is achieved by reduced delta ferrite content and control of inclusion size and shape.
The composition and processing of 15-5PH alloy is carefully controlled to minimize its content of delta ferrite, which is present in the S17400 material. Inclusion control is done by consumable electrode remelting using the electro-slag remelting (ESR) process.
PH13-8Mo (UNS S13800) is a martensitic precipitation-hardening stainless steel that has excellent strength, high hardness, superior toughness, and good corrosion resistance. Good transverse toughness properties are achieved by tight chemical composition control, low carbon content, and vacuum melting.
Typical applications are large airframe structural components, injection molding equipment and slide gates to control water flow.
17-4PH, 17-7PH, PH15-7Mo, 15-5PH, PH13-8Mo stainless steel sheet, plate, strip and coil
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WUXI GUANGLU Special Steel Co., Ltd.
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