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Hot Rolled 17-4PH Stainless Steel Round Bar with Bright Surface and OD 3-300mm

Certification	ISO, AISI, ASTM, EN, DIN, JIS
Quantité de commande min	50 kg
Prix	US $3.3-3.82 / kg

Détails sur le produit

Forme	Rond	Technique	Laminé à chaud
Traitement de surface	Brillant	Diamètre	8 - 450 mm
Longueur	6 m/pièces	Grade majeur	201 301 303Cu 304 304L 309S 310S 316L 316Ti 317L 318 321 347 410 420 430 431 440a/b/c 904L 2205 2507
Résistance à la traction	1105 - 1310 MPa	Limite d'élasticité	1 000 - 1 170 MPa
Élongation	10 - 16%	Dureté	28 - 44 HRC
Conductivité thermique	18,4 - 22,7 W/mK	Chaleur spécifique	460 J/kg.K
Résistivité électrique	800 nΩ.m	Densité	7750 kg/m³
Extension thermique	10,8 - 11,6 µm/m/°C
Mettre en évidence	Hot Rolled 17-4PH Stainless Steel Round Bar , Bright Surface 630 Stainless Steel Bar , OD 3-300mm Precipitation Hardening Stainless Steel Bar

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Description de produit

High Quality 17-4PH Stainless Steel Bright Bar / Black Bar Grade 630

17-4PH Stainless Steel (also known as Type 630) is a chromium-copper precipitation hardening stainless steel designed for applications requiring high strength and moderate corrosion resistance. This material maintains high strength up to approximately 600°F (316°C).

Product Specifications

Product	17-4PH Stainless Steel Round Bar
Standard	ASTM GB DIN EN
Diameter	8 - 450mm
Length	6m /pcs or cutting as requested
Finishing	Black Bar / Bright Bar
Available Grades	201, 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, etc.
Services	Cutting, surface polishing, heat treatment
Brand	Walsin, BAOSTEEL, TISCO, QINGSHAN

Material Description

Alloy 17-4 PH is a precipitation hardening martensitic stainless steel with copper and niobium additions. This grade combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance. Mechanical properties can be optimized through heat treatment, achieving very high yield strength up to 1100-1300 MPa (160-190 ksi).

Applications

Offshore applications (foils, helicopter deck platforms)
Food processing industry
Pulp and paper industry
Aerospace components (turbine blades)
Mechanical components
Nuclear waste casks
Engine components
High strength boat propeller shafts
Plastic molding dies
Valves and gears

Standards Compliance

Standard	Designation
ASTM	A693 grade 630 (AMS 5604B) UNS S17400
EURONORM	1.4542 X5CrNiCuNb 16-4
AFNOR	Z5 CNU 17-4PH
DIN	1.4542

Chemical Composition

Element	Content (%)
Carbon (C)	≤ 0.07
Manganese (Mn)	≤ 1.00
Silicon (Si)	≤ 1.00
Phosphorus (P)	≤ 0.04
Sulfur (S)	≤ 0.030
Chromium (Cr)	15.0 - 17.5
Nickel (Ni)	3.0 - 5.0
Copper (Cu)	3.0 - 5.0
Niobium + Tantalum (Nb+Ta)	0.15 - 0.45

Mechanical Properties

Condition	Tensile Strength (MPa)	Yield Strength 0.2% Proof (MPa)	Elongation (% in 50mm)	Hardness Rockwell C (HRC)
Solution Treated	1105 (typical)	1000 (typical)	15 (typical)	38 max
Condition 900	1310 min	1170 min	10 min	40 min
Condition 1150	930 min	724 min	16 min	28 min

Physical Properties

Property	Value
Density	7750 kg/m³
Thermal Conductivity at 100°C	18.4 W/m·K
Thermal Conductivity at 500°C	22.7 W/m·K
Specific Heat (0-100°C)	460 J/kg·K
Electrical Resistivity	800 nΩ·m

Corrosion Resistance

Alloy 17-4 PH provides superior corrosion resistance compared to standard hardenable stainless steels and performs comparably to Alloy 304 in most environments. For applications with potential stress corrosion cracking risks, aging temperatures above 1022°F (550°C) are recommended. The material demonstrates excellent resistance in chemical, petroleum, paper, dairy, and food processing industries.

Heat Treatment

Solution treatment involves heating to 1040°C for 0.5 hours followed by air cooling. Age hardening at specific temperatures achieves desired mechanical properties. The material should not be used above age-hardening temperatures to prevent reduction of hardness and mechanical properties.

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