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| Place of Origin | Jiangsu China |
| Brand Name | Guangda |
| Certification | DNV, BV, Rina, ISO, GL, ABS, LR ,CCS ,PED |
Alloy Stainless Steel 17-4PH Stainless Steel Bar - Guangda special material Co.
Alloy 17-4PH (UNS S17400), Type 630, is a chromium-nickel-copper precipitation-hardening martensitic stainless steel with an addition of niobium. 17-4PH combines high strength and hardness with good corrosion resistance. The alloy is furnished in the solution annealed condition (Condition A).
The material is widely used in the aerospace, marine, paper, energy, offshore and food industries for heavy-duty machine components, bushings, turbine blades, couplings, screws, drive shafts, nuts, measuring devices.
17-4 can be heat treated to high levels of strength and hardness, and features corrosion resistance and machinability comparable to austenitic 304 stainless. Being martensitic, 17-4 is magnetic.Overaging (aging beyond the peak strength condition) improves resistance to stress corrosion cracking.
17-4 PH Alloy Stainless Steel Product features
| Material | 17-4PH stainless steel |
| Type | Forged bar ,round ,square, flat, block, shaft etc. |
| Diameter | φ150-1500mm |
| Length | Max 10000mm (10m) |
| Surface | Black, peeled, polishing, bright, sand blast, hair line, etc. |
| Application | valve parts, fittings and fasteners, forged shafts and gears, engine parts, chemical process equipment, paper mill equipment, and components for aircraft and nuclear reactors. |
| Tensile strength test | DIN EN ISO 6892-1 |
| Impact test | DIN EN ISO 148-1 |
| UT | DIN EN10228 Quality-Class 3 C/c or D/d |
| Grain size | ASTM E112 / EN ISO 643 |
| Applicable standard | EN10250,EN10083,SEW550 etc |
| Certificate | EN 10204 / 3.1 3.2 |
17-4 PH Alloy Stainless Steel chemical composition
| Grade | C | Mn | P | S | Si | Cr | Ni | Cu | Nb,Ta |
| 17-4PH | max 0.07 | max 1.0 | max 0.04 | max 0.03 | max 1.0 | 15.0-17.5 | 3.0-5.0 | 3.0-5.0 | 0.15-0.45 |
17-4 PH Alloy Stainless Steel delivery state we could provide
17-4 PH Alloy Stainless Steel application
17-4 stainless steel is used for components which require high hardness and/or corrosion resistance , Specific applications for 17-4 include the petroleum and chemical industries, as well as use in aircraft parts . The material is widely used in the aerospace, marine, paper, energy, offshore and food industries for heavy-duty machine components, bushings, turbine blades, couplings, screws, drive shafts, nuts, measuring devices.
About Guangda Group
Zhangjiagang Guangda Special Material Co.,Ltd was established in 2003, is one of the forging manufacturer for research and development, production, sales, service as one of the comprehensive company. We located in Jiangsu Province besides Shanghai. We provide different forgings of shaft ,gear blank , ring rolling, rough machining, heat treatment and finish machining. Our annual production capacity is 500,000 tons for various of free-die forgings, ring rollings .
We are qualified by the classifications such as PED,DNV, BV, Rina, ISO, GL, ABS, LR .Act as the high-tech enterprises with high-quality special alloy materials as the core business belong to the "advanced iron and steel materials" industry under the strategic emerging industries supported by the state.
There are two major product systems of alloy materials and alloy products:The alloy materials include high quality gear steel, high quality die steel, special stainless steel, high temperature alloy, ultra-high strength steel and other new material products encouraged by the state; Alloy products mainly include wind power equipment, rail transit and various precision mechanical parts made of alloy materials.
Guangda forgings are widely used in high-end equipment manufacturing industries such as new energy wind power, rail transit, mechanical equipment, aerospace, new energy power, gas turbine, Marine petrochemical, semiconductor chip equipment and so on.
| 1 | Smelting line & Special smelting line | Smelting capacity 500,000.00 ton/year |
| 2 | Heat treatment line | Annealing,Normalizing,Tempering ,QT, Nitriding , Carburize ,Case-hardening etc |
| 3 | Forging line | 5000ton,4500ton,4000ton,3600ton,2000ton,1000ton of different forging press machine. |
| 4 | Casting capacity | Intelligent casting production line ,work piece max 200ton . |
| 5 | Rough machining | Turning, milling, boring different kinds of the rough machining equipment more than 100 sets |
| 6 | Precision machining | Grinding finished machininGGear shaping ,gear hobbing, gear grinding etc. |
| 7 | Surface treatment | Advanced coating facilities such as high-pressure cleaning, sand blasting and thermal spraying. Complete surface treatment capability. |
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