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ASTM A276 Bright Annealing UNS S17400 Stainless Steel Round Bar with OD 6-300mm

China ASTM A276 Bright Annealing UNS S17400 Stainless Steel Round Bar with OD 6-300mm

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ASTM A276 Bright Annealing UNS S17400 Stainless Steel Round Bar with OD 6-300mm

MOQ： 50 kg
Price： US $3.44-4.05 / kg
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Shape	Round
Technique	Hot Rolled
Surface Treatment	Bright
Diameter Range	8 - 450mm
Length	6m /pcs
Tensile Strength	1105-1310 MPa
Yield Strength	1000-1170 MPa
Elongation	10-16%
Hardness	28-44 HRC
Density	7750 kg/m³
Thermal Conductivity	18.4 W/m.K
Specific Heat	460 J/kg.K
Electrical Resistivity	800 nΩ.m
Max Temperature	572°F (300°C)
Thermal Expansion	10.8 µm/m/°C
Certification	ISO, AISI, ASTM, EN, DIN, JIS

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Product Details
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Product Specification


Shape	Round	Technique	Hot Rolled
Surface Treatment	Bright	Diameter Range	8 - 450mm
Length	6m /pcs	Tensile Strength	1105-1310 MPa
Yield Strength	1000-1170 MPa	Elongation	10-16%
Hardness	28-44 HRC	Density	7750 kg/m³
Thermal Conductivity	18.4 W/m.K	Specific Heat	460 J/kg.K
Electrical Resistivity	800 nΩ.m	Max Temperature	572°F (300°C)
Thermal Expansion	10.8 µm/m/°C	Certification	ISO, AISI, ASTM, EN, DIN, JIS
High Light	Bright Annealing Stainless Steel Round Bar ，OD 6-300mm Stainless Steel Shaft ，Precipitation Hardening 17-4PH Stainless Steel Bar

ASTM A276 Bright Annealing UNS S17400 Stainless Steel Round Bar / Stainless Steel Shaft

Product Specifications

Products	17-4PH Stainless Steel Round Bar
Standard	ASTM GB DIN EN
Diameter	8 - 450mm
Length	6m /pcs or cutting as request
Finishing	black bar / Bright Bar
Main Grade	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 Stainless Steel (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°F (316°C).

General Properties

Alloy 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.

Applications & Standards

Applications	Standards
Offshore (foils, helicopter deck platforms, etc.) Food industry Pulp and paper industry Aerospace (turbine blades, etc.) Mechanical components Nuclear waste casks	ASTM A693 grade 630 (AMS 5604B) UNS S17400 EURONORM 1.4542 X5CrNiCuNb 16-4 AFNOR Z5 CNU 17-4PH DIN 1.4542

Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Ni	Cu	Nb+Ta
630	min. max - 0.07	- 1	- 1	- 0.04	- 0.030	15 17.5	3 5	3 5	0.15 0.45

Mechanical Properties

Condition	Tensile Strength (MPa)	Yield Strength 0.2% Proof (MPa)	Elongation (% in 50mm)	Hardness Rockwell C (HR C)	Hardness Brinell (HB)
Solution Treated	1105 typ	1000 typ	15 typ	38 max	363 max
Condition 900	1310 min	1170 min	10 min	40 min	388 min
Condition 1150	930 min	724 min	16 min	28 min	277 min

Physical Properties

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: 10.8 0-315°C: 11.6 0-538°C: -	At 100°C: 18.4 At 500°C: 22.7	460	800

Grade Specifications

Grade	UNS No	Euronorm	Japanese JIS
630	S17400	1.4542 X5CrNiCuNb16-4	SUS 630

Alternative Grades

Grade	Reasons for choosing 17/4PH (630)
431	431 Has higher toughness than 17/4PH. Better availability in some sizes.
416	Free-machining martensitic stainless steel - better for repetition machining. Lower cost.
316	Higher corrosion resistance of 316 to resist more severe environments, but with much lower strength than 17/4PH.
2205	Much better corrosion resistance than 17/4PH, with a lower strength (but not as low as 316).

Corrosion Resistance

Grade 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 Resistance

Grade 630 stainless steels have good resistance to oxidation. However, long-time exposure of grade 630 to temperatures of 370 to 480°C should be avoided, to prevent loss of toughness at ambient temperature. These grades should not be used at temperatures above age-hardening temperature, to avoid reduction of hardness and mechanical properties.

Heat Treatment

Solution treatment (Condition A) - Grade 630 stainless steels are heated at 1040°C for 0.5 h, then air-cooled to 30°C. Small sections of these grades can be oil quenched.

Hardening - Grade 630 stainless steels are age-hardened at low temperatures to achieve the required mechanical properties. During the process, superficial discoloration occurs followed by shrinkage at 0.10% for condition H1150, and 0.05% for condition H900.

Cond.	Hardening Temp (°C)	Time (h)	Typical Hardness Rockwell C	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

Welding & Machining

Welding: Grade 630 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.

Machining: Grade 630 stainless steels can be machined in their solution-treated condition. They have machining rates similar to that of grade 304 steels.

Product Images

Applications

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

Company Details

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Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...

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