ZYTC Alloy is an ISO 9001 and AS 9120B certified superalloy manufacturer and supplier, offering 1.4548 / 17-4PH stainless steel at factory-direct prices with full material traceability and fast global delivery. 1.4548 (17-4PH / UNS S17400 / AISI 630) is a martensitic precipitation-hardening stainless steel containing approximately 17% chromium and 4% nickel with copper additions. This grade combines high strength and hardness with corrosion resistance comparable to 304 stainless steel in most media.
Product Forms & Availability – 1.4548 / 17-4PH (UNS S17400)| Product Form | Size Range | Condition |
|---|
| Round Bar | Φ3mm – 500mm | Solution annealed (Condition A) | | Flat Bar | Custom sizes | Solution annealed | | Hexagon Bar | Custom sizes | Solution annealed | | Profile Tube | Custom | Solution annealed | | Sheet | Various | Solution annealed | | Plate | Various | Solution annealed | | Strip | Various | Solution annealed |
For all stock availability, contact Sales.
Specifications – 1.4548 / 17-4PH| Specification | Description |
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| AMS 5862 | Sheet, strip, plate | | AMS 5659 | Bars and forgings | | ASTM A693 | Plate, sheet, strip | | ASTM A564 | Bar | | ASME SA564 | Bar | | UNS S17400 | Unified numbering system | | AISI 630 | AISI designation |
Fabrication & Weldability| Process | Guidelines |
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| Forging | Hot forge in 950-1200°C range; solution treatment required to achieve maximum hardness | | Welding | Good weldability; welding should preferably be carried out before aging to avoid embrittlement of the heat-affected zone | | Machining | Good machinability in Condition A; machining after aging is more difficult | | Heat Treatment | Single-step aging at 480-620°C after solution annealing at 1040°C; volume contraction of up to ~0.07% during aging |
ApplicationsAerospace: Aerospace structural components, landing gear parts, engine mounts, high-strength fasteners, chassis, shafts Chemical Processing: Valves, pumps, reactor components, refinery equipment Defense & Energy: Components requiring high strength and corrosion resistance Food Processing: Processing equipment, food industry machinery General Engineering: Molding tools, automotive components, shafts, and valves
Why Choose ZYTC Alloy?ZYTC Alloy is a leading AS9120B and ISO 9001 dual-certified metal supplier and manufacturer based in China. We supply high-performance stainless steels, nickel alloys, superalloys, and cobalt alloys for critical applications in aerospace, defense, chemical processing, and industrial equipment. Our Advantages: ✅ AS9120B and ISO 9001 certified – quality management guaranteed ✅ Full material traceability from melt to delivery ✅ EN 10204 3.1 / 3.2 inspection certificates available ✅ VAR or ESR remelted material for critical applications ✅ Multiple product forms and conditions (H900, H925, H1025, H1075, H1100, H1150) ✅ Competitive factory pricing with no middlemen ✅ Fast delivery from ex-stock inventory ✅ Technical support from experienced metallurgists
Contact UsRequest a quote for 1.4548 / 17-4PH Stainless Steel (UNS S17400 / AISI 630) – Martensitic Precipitation Hardening – High Strength & Corrosion Resistance (Similar to 304) – Up to 316°C . Please provide: Diameter / size Product form (round / flat / hexagon / profile tube / sheet / plate / strip / custom) Heat treatment condition (Condition A / H900 / H1025 / H1150, etc.) Length or weight required Quantity Destination port Any special certification requirements
📧 Email: daisy@zytcsteel.com
📱 WhatsApp / WeChat: +86 17335753350 |
