Hot Rolled 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm

証明	ISO, AISI, ASTM, EN, DIN, JIS
最小注文数量	50 kg
価格	US $3.26-3.75 / kg

商品の詳細

型番	17-4PH/630	形	ラウンド
技術	熱間圧延	表面処理	明るい
仕様	外径6～300mm	直径	8～450mm
長さ	6メートル/個	メイングレード	201 301 303Cu 304 304L 309S 310S 316L 316Ti 317L 318 321 347 410 420 430 431 440a/b/c 904L 2205 2507
抗張力	1105～1310MPa	降伏強さ	1000～1170MPa
伸長	10-16%	硬度	28-44HRC
熱伝導率	18.4W/mK	比熱	460 J/kg.K
電気抵抗率	800nΩ・m
ハイライト	Hot Rolled Stainless Steel Round Bar , Bright Surface 17-4PH Round Bar , OD 6-300mm 630 Stainless Steel Bar

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製品の説明

630 / 17-4PH Stainless Steel Round Bar

High-strength mechanical stainless steel round bar stock with excellent corrosion resistance and hardness properties.

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 Stainless Steel (also known as Type 630) is a chromium-copper precipitation hardening stainless steel used for applications requiring high strength and moderate 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, achieving very high yield strength up to 1100-1300 MPa (160-190 ksi).

Applications & Standards

Applications	Standards
Offshore (foils, helicopter deck platforms) Food industry Pulp and paper industry Aerospace (turbine blades) 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	0.07 max	1.0 max	1.0 max	0.04 max	0.030 max	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 (HRC)	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

Property	Value
Density (kg/m³)	7750
Thermal Conductivity at 100°C (W/m·K)	18.4
Thermal Conductivity at 500°C (W/m·K)	22.7
Specific Heat 0-100°C (J/kg·K)	460
Electrical Resistivity (nΩ·m)	800
Mean Coefficient of Thermal Expansion 0-100°C (µm/m/°C)	10.8

Alternative Grade Comparison

Alternative Grade	Reasons for Choosing 17-4PH (630)
431	431 has higher toughness than 17-4PH, with better availability in some sizes
416	Free-machining martensitic stainless steel - better for repetition machining, lower cost
316	Higher corrosion resistance but with much lower strength than 17-4PH
2205	Much better corrosion resistance with lower strength (but not as low as 316)

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.

Hardening: Age-hardened at low temperatures to achieve required mechanical properties. Superficial discoloration occurs followed by shrinkage.

Condition	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

Processing Characteristics

Welding: Can be welded using all conventional methods without pre-heating. Care should be taken in designing and welding high strength steels to prevent weldment stresses.

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

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