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2021 wholesale price Invar 36 Wire - Stainless steel 17-7PH – Sekonic Detail:
Common Trade Names: 17-7PH,SUS631,S17700,07Cr17Ni7Al,W.Nr.1.4568
17-7PH is austenitic-martensitic precipitation hardening stainless steel developed on the basis of 18-8CrNi, also known as controlled phase change stainless steel.At the solution treating temperature, 1900°F, the metal is austenitic but undergoes transformation to a low-carbon martensitic structure during cooling to room temperature. This transformation is not complete until the temperature drops to 90°F. Subsequent heating to temperatures of 900-1150°F for one to four hours precipitation strengthens the alloy. This hardening treatment also tempers the martensitic structure, increasing ductility and toughness
17-7PH Chemical Composition
| C |
Cr |
Ni |
Si |
Mn |
P |
S |
Al |
| ≤0.09 |
16.0-18.0 |
6.5-7.75 |
≤1.0 |
≤1.0 |
≤0.04 |
≤0.03 |
0.75-1.5 |
17-7PH Physical Properties
| Density (g/cm3) |
Melting point(℃) |
| 7.65 |
1415-1450 |
17-7PH Mechanical Properties
| Condition |
бb/N/mm2 |
б0.2/N/mm2 |
δ5/% |
ψ |
HRW |
| Solution treatment |
≤1030 |
≤380 |
20 |
- |
≤229 |
| Precipitationhardening |
510℃ageing |
1230 |
1030 |
4 |
10 |
≥383 |
| 565℃ageing |
1140 |
960 |
5 |
25 |
≥363 |
17-7PH Standards and Specifications
AMS 5604, AMS 5643, AMS 5825,ASME SA 564, ASME SA 693, ASME SA 705, ASME Type 630,ASTM A 564, ASTM A 693, ASTM A 705, ASTM Type 630
Condition A – H1150,ISO 15156-3,NACE MR0175,S17400,UNS S17400,W. Nr./EN 1.4548
| Bar/Rod |
Wire |
Strip/Coil |
Sheet/Plate |
Pipe/Tube |
17-7PH Available Products in Sekonic Metals

17-7PH Bars & Rods
Round bars/Flat bars/Hex bars, Size From 8.0mm-320mm, Used for bolts,fastners and other spare parts

17-7PH Wire
Supply in welding wire and spring wire in coil form and cut length.

17-7PH sheet & plate
Widths up to 1500mm and lengths up to 6000mm,Thickness from 0.1mm to 100mm.

Standards size and customized dimension can be produced by us with small tolerance

17-7PH strip & coil
Soft condition and hard condition with AB bright surface, width up to 1000mm

17-7PH Fasteners
17-7PH materials in forms of Bolts,screws,flanges and other fasterners, according to clients specification.
Why 17-7 PH?
• High tensile strength and hardness to 600°F
• Corrosion resistant
• Excellent oxidation resistance to about 1100°F
• Creep-rupture strength to 900°F
17-7 PHApplication field:
• Gate valves
• Chemical processing equipment
• Pump shafts, gears, plungers
• Valve stems, balls, bushings, seats
• Fasteners
Product detail pictures:
Related Product Guide:
Special Materials we offer
Why Cobalt based Alloys
continue on to further improve, to make sure product top quality in line with market and consumer standard requirements. Our firm has a excellent assurance program have already been established for 2021 wholesale price Invar 36 Wire - Stainless steel 17-7PH – Sekonic , The product will supply to all over the world, such as: Marseille, Sri Lanka, Hungary, Based on our guiding principle of quality is the key to development, we continually strive to exceed our customers' expectations. As such, we sincerely invite all interested companies to contact us for future cooperation, We welcome old and new customers to hold hands together for exploring and developing; For more information, be sure to feel free to contact us. Thanks. Advanced equipment, strict quality control, customer-orientation service, initiative summary and improvement of defects and extensive industry experience enable us to guarantee more customer satisfaction and reputation which, in return, brings us more orders and benefits. If you are interested in any of our merchandise, make sure you feel free to contact us. Inquiry or visit to our company are warmly welcome. We sincerely hope to start a win-win and friendly partnership with you. You can see more details in our website.