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Bright Polished 17-4PH Stainless Steel Round Bar with OD 3-300mm and Precipitation Hardening

Πιστοποίηση	ISO, AISI, ASTM, EN, DIN, JIS
Ποσότητα παραγγελίας min	50 κιλά
Τιμή	US $3.3-3.82 / kg

Λεπτομέρειες

Σχήμα	Γύρω	Τεχνική	Θερμής έλασης
Επεξεργασία Επιφανειών	Ευφυής	Διάμετρος	8 - 450 mm
Μήκος	6m /τεμ	Πρωτοβάθμια	17-4ph
Αντοχή εφελκυσμού	1105 - 1310 MPa	Ισχύς απόδοσης	1000 - 1170 MPa
Επιμήκυνση	10 - 16%	Σκληρότητα	28 - 44 HRC
Πυκνότητα	7750 kg/m³	Θερμική αγωγιμότητα	18,4 - 22,7 W/mK
Ηλεκτρική αντίσταση	800 nΩ.μ	Συντελεστής επέκτασης	10,8 - 11,6 μm/m/°C
Μέγιστη θερμοκρασία	572 ° F (300 ° C)
Επισημαίνω	Bright Polished Stainless Steel Round Bar , OD 3-300mm 17-4PH Stainless Steel Bar , Precipitation Hardening 630 Stainless Steel Bar

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Περιγραφή προϊόντων

China Factory Direct Stainless Steel Bar - Grade 17-4PH / 630 / 1.4542

Precipitation hardening stainless steel bars with high strength and moderate corrosion resistance, maintained up to 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
Main 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.
Service	Cutting, surface polishing, heat treatment
Brand	Walsin, BAOSTEEL, TISCO, QINGSHAN

Material Description

17-4PH (Type 630) is a chromium-copper precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. It combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance equivalent to Alloy 304 or 430 in most media.

Applications

Offshore (foils, helicopter deck platforms)
Food industry
Pulp and paper industry
Aerospace (turbine blades)
Mechanical components
Nuclear waste casks

Standards

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	Min	Max
C	-	0.07
Mn	-	1.00
Si	-	1.00
P	-	0.04
S	-	0.030
Cr	15.00	17.50
Ni	3.00	5.00
Cu	3.00	5.00
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 typ	1000 typ	15 typ	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
Mean Co-eff of Thermal Expansion (0-100°C)	10.8 µm/m/°C
Thermal Conductivity (at 100°C)	18.4 W/m·K
Specific Heat (0-100°C)	460 J/kg·K
Electrical Resistivity	800 nΩ·m

Alternative Grade Comparison

Alternative Grade	Reason for Choosing 17-4PH
431	431 has higher toughness but 17-4PH offers better strength
416	416 is free-machining but 17-4PH provides superior strength
316	316 has higher corrosion resistance but much lower strength
2205	2205 has better corrosion resistance with lower strength

Heat Treatment

Solution treatment (Condition A): Heated at 1040°C for 0.5 h, then air-cooled to 30°C. Small sections can be oil quenched.

Age Hardening Conditions

Condition	Hardening Temp (°C)	Time (h)	Typical Hardness (HRC)	Tensile Strength (MPa)
A	Ann	-	36	1100
H900	482	1	44	-
H925	496	4	42	1170-1320
H1025	552	4	38	1070-1220
H1075	580	4	36	1000-1150
H1100	593	4	35	970-1120
H1150	621	4	33	930-1080

Processing Characteristics

Welding: Can be welded using all conventional methods without pre-heating. Care should be taken to prevent weldment stresses.

Machining: Can be machined in solution-treated condition with machining rates similar to grade 304 steels.

Product Applications

Engine components
High strength and boat propeller shafts
Plastic moulding dies
Valves and gears

Product Images

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Bright Polished 17-4PH Stainless Steel Round Bar with OD 3-300mm and Precipitation Hardening

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