모든 제품
-
라이안 이오네스쿠매우 좋은 소재 품질. 우리는 10년 이상을 협력하게 합니다. 그들은 강철 소재의 다량 종류를 거래합니다. 좋은 모든 소재 품질. 그들 모든 소재 품질을 위한 의무. 우리는 활공하고 있고 계속되고 미래에 그들과 협력합니다
17-7 PH Stainless Steel Rod – Corrosion-Resistant, Heat-Treatable Alloy for Precision Engineering
무료샘플과 쿠폰을 위해 나와 연락하세요.
왓츠앱:0086 18588475571
위챗: 0086 18588475571
스카이프: sales10@aixton.com
만약 당신이 어떠한 관심도 가지면, 우리가 24 시간 온라인 도움말을 제공합니다.
x제품 상세 정보
| 제품명 | 17-7PH 스테인리스 스틸 바 | 지름 | 10 - 350 밀리미터 |
|---|---|---|---|
| 길이 | 6m 또는 요청에 따라 길이를 절단합니다 | 표면 | 검정색 또는 연마 |
| 서비스 | 절단 | 기준 | ASTM DIN GB EN |
| 다른 제품 | 둥근 바, 사각형 바, 플랫 바 .etc | 기술 | 열간압연 |
제품 설명
Products Specification
| Products Name | 17-7PH Stainless Steel Round Bar |
| Grade |
303,303Cu,304,304L,309S,310S,310H,316L,316Ti,316H,317L,321,329,347,410,415,420, 430F,431,440A/B/C,2205,2507,904l,254SMO,253MA,CD4MCU,XM-19,17-4PH,15-5PH,17-7PH,660,C276,600,601,625,718,800,800H,825,926.etc |
| Products Diameter Range | φ3mm - φ350mm |
| Length | 6m/pcs or cutting any length as request |
| Surface | Pickling finishing, bright finishing |
| Standard | ASTM JIS,GB,DIN EN |
| Service | Cutting |
| Other Shape | Square , Flat, Hexagonal, Round.etc |
| Loading Port | Shanghai Port |
| MOQ | 50 kgs |
17-7 PH Stainless Steel Rod – Corrosion-Resistant, Heat-Treatable Alloy for Precision Engineering
Product Overview
The 17-7 PH (Precipitation Hardening) Stainless Steel Rod is a high-performance semi-austenitic alloy engineered for applications demanding an exceptional balance of strength, corrosion resistance, and dimensional stability. With the UNS designation S17700 (also known as AISI 631 or EN 1.4568), this versatile material is supplied in diameters ranging from 6 mm to 350 mm, available in both hot-rolled and precision-ground forms, and fully compliant with ASTM A276, AMS 5528, and AMS 5667 standards.
Ideal for aerospace, defense, medical instrumentation, spring manufacturing, and high-precision industrial components, 17-7 PH can be easily machined or formed in its annealed condition and then heat-treated to achieve ultimate tensile strengths exceeding 1380 MPa (200 ksi) and hardness up to 48 HRC—all while maintaining corrosion resistance comparable to Type 304 stainless steel.
Our rods are supplied in the solution-annealed (Condition A) state as standard, ready for your custom aging cycle, and can be cut to exact lengths to streamline production and reduce waste.
Why 17-7 PH Excels in Precision Engineering
Unlike conventional martensitic or austenitic stainless steels, 17-7 PH leverages a controlled phase transformation through a three-step thermal process:
- Solution Annealing (Condition A): Soft, ductile structure ideal for machining, cold forming, or welding.
- Conditioning Treatment: Converts retained austenite to martensite via thermal cycling or cryogenic exposure.
- Precipitation Hardening (Aging): Aluminum-rich Ni₃Al precipitates form at 510–565°C, delivering peak strength with minimal distortion.
This unique metallurgy enables:
- Near-net-shape stability during aging—critical for tight-tolerance parts
- Superior fatigue and stress-corrosion cracking resistance
- Excellent surface finish retention after final heat treatment
- High strength-to-weight ratio for weight-sensitive designs
Key Specifications
| Parameter | Details |
|---|---|
| Material Grade | 17-7 PH (UNS S17700, AISI 631, 07Cr17Ni7Al) |
| Standards | ASTM A276, AMS 5528 (Bar/Sheet), AMS 5667 (Forged Bar) |
| Form | Solid Round Rod / Bar |
| Diameter Range | 6 mm – 350 mm |
| Processing Options | Hot Rolled (standard), Centerless Ground, Peeled & Turned |
| Standard Lengths | 3 m, 4 m, 6 m |
| Custom Cutting | Yes – from 100 mm to 6000 mm (±0.5 mm tolerance on ground bars) |
| As-Supplied Condition | Condition A (Solution Annealed, ≤22 HRC) |
| Optional Conditions | TH1050, RH950, CH900 (pre-aged upon request) |
| Surface Finish | As-rolled, pickled, turned, or precision-ground (Ra ≤ 0.8 µm) |
| Certification | EN 10204 3.1/3.2 Mill Test Report (MTR), PMI, UT available |
Mechanical Properties by Heat Treatment Condition
| Condition | Process Summary | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRC) |
|---|---|---|---|---|---|
| Condition A | 1040°C → air cool | ≥1035 | ≥345 | ≥20 | ≤22 |
| TH1050 | 1040°C → air cool → 565°C/4h age | ≥1310 | ≥1170 | 1–5 | 38–44 |
| RH950 | 1040°C → air cool → -73°C → 510°C/4h age | ≥1380 | ≥1240 | 1–4 | 44–48 |
| CH900 | Cold-worked + 510°C age | ≥1520 | ≥1450 | <2 | 48–50 |
Note: All mechanical values are typical minimums per AMS/ASTM specifications.
Chemical Composition (UNS S17700 – ASTM A276)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.09 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 6.50 – 7.75 |
| Aluminum (Al) | 0.75 – 1.50 |
| Iron (Fe) | Balance |
Aluminum is the key precipitation-hardening element, enabling high strength without compromising toughness.
Precision Applications Across Industries
| Industry | Typical Components |
|---|---|
| Aerospace | Bellows, diaphragms, flap tracks, actuator rods, compressor blades |
| Defense & Missiles | Guidance housings, spring retainers, structural brackets |
| Medical Devices | Reusable surgical instrument frames, biopsy tool components |
| Automotive (Performance) | High-cycle valve springs, turbo actuator shafts |
| Industrial Automation | Precision springs, snap rings, sensor housings, micro-gears |
| Energy | Nuclear control rod drives, downhole sensor sleeves |
Particularly valued where tight tolerances, long fatigue life, and corrosive environments coexist.
Advantages Over Alternative Alloys
| Feature | 17-7 PH | 17-4 PH | 304 SS | 4140 Steel |
|---|---|---|---|---|
| Max Strength (MPa) | 1380–1520 | ~1310 | ~515 | ~1000 |
| Corrosion Resistance | Excellent | Moderate | Excellent | Poor (requires plating) |
| Dimensional Stability During Aging | ★★★★★ | ★★★☆☆ | N/A | N/A |
| Spring Performance | Outstanding | Good | Poor | Good (but corrodes) |
| Machinability (Annealed) | Good | Fair | Excellent | Good |
17-7 PH uniquely delivers aerospace-grade performance with stainless-level corrosion protection.
Ordering Guide
To ensure accurate fulfillment, please specify:
- Grade: 17-7 PH (UNS S17700)
- Standard: ASTM A276 / AMS 5528 / Custom spec
- Diameter: e.g., Ø12.7 mm (½") or Ø100 mm
- Length: e.g., 850 mm (custom cut available)
- Finish: As-rolled, turned (+/-0.1 mm), or ground (Ra ≤ 0.8 µm)
- Heat Treatment: Condition A (default) or pre-aged (TH1050/RH950/CH900)
- Certification: MTR, chemical analysis, ultrasonic testing (UT), or MPI
Quality Assurance
- Produced in ISO 9001:2015 and AS9100D certified facilities
- Full heat number traceability from melt to delivery
- Optional non-destructive testing: Ultrasonic (per AMS-STD), Magnetic Particle Inspection
- Compliant with REACH, RoHS, and conflict minerals regulations
- Export packaging: Waterproof wrapping, steel strapping, wooden crates for long bars
Frequently Asked Questions (FAQ)
Q: Can I machine 17-7 PH before aging?
A: Absolutely—and it’s recommended. Machine in Condition A for best results; final aging induces minimal distortion.
A: Absolutely—and it’s recommended. Machine in Condition A for best results; final aging induces minimal distortion.
Q: Is 17-7 PH magnetic?
A: Yes—after martensitic transformation (post-conditioning), it becomes ferromagnetic.
A: Yes—after martensitic transformation (post-conditioning), it becomes ferromagnetic.
Q: What’s the maximum service temperature?
A: Continuous use up to 315°C (600°F); short-term exposure to 480°C (900°F) is possible.
A: Continuous use up to 315°C (600°F); short-term exposure to 480°C (900°F) is possible.
Q: Do you supply small-diameter rods for springs?
A: Yes—down to 6 mm, with centerless grinding available for high-precision spring wire blanks.
A: Yes—down to 6 mm, with centerless grinding available for high-precision spring wire blanks.
Conclusion
The 17-7 PH Stainless Steel Rod is the intelligent choice for engineers who refuse to compromise between strength, corrosion resistance, and precision. Its heat-treatable nature allows for tailored mechanical properties, while its stable microstructure ensures reliability in the most demanding applications—from jet engines to life-saving medical tools.
Backed by global supply capabilities, technical metallurgy support, and rigorous quality systems, we deliver not just material—but confidence in performance.
17-7 PH stainless steel rod, UNS S17700 precision bar, corrosion-resistant heat-treatable stainless, ASTM A276 17-7 PH, AMS 5528 stainless rod, high-strength spring steel 17-7 PH, RH950 stainless bar, TH1050 condition rod, precision-ground 17-7 PH, aerospace stainless steel rod, cut-to-length 17-7 PH, 17-7 PH for medical devices, precipitation hardening stainless steel bar.
추천된 제품