17-7PH Precipitation Hardened Stainless Steel Round Bar Stock NAS631 S17700

17-7PH Precipitation Hardened Stainless Steel Round Bar Stock NAS631 S17700

17-7PH precipitation hardened stainless steel round bar stock NAS631 S17700

17-7PH is an austenite-martensitic precipitation-hardening stainless steel developed on the basis of 18-8CrNi, also known as controlled phase change stainless steel. After solution treatment, it is an unstable austenite structure with good plasticity and toughness. And workability, adjusted to make the austenite precipitated carbide composition change, and then after martensite transformation treatment, most of the structure is transformed into low toughness tempered martensite with better toughness, this state is the use of steel State, with good medium temperature mechanical properties. Corrosion resistance is better than general martensitic stainless steel.

Application area:
Offshore platforms, helicopter decks, other platforms
food industry
Pulp and paper industry
Aerospace (turbine blades)
mechanical part
Nuclear waste barrel

Grade comparison:

• NASNAS 631
• UNSS17700
• EN / DIN1.4568
• JISSUS 631

chemical composition:

Shanghai Aboom Metal prodcut co.,ltd mainly produces and sells super duplex stainless steel, special super austenitic stainless steel and high temperature alloys, nickel-based alloys, corrosion-resistant alloys, precision alloys, and special alloy steels based on cobalt.

Products include steel pipes, steel plates, round steel, forgings, flanges, fittings, fasteners, precision steel strips, etc. All materials are strictly in accordance with international standards such as ASTM / ASME (American Standard), GB (National Standard), JIS (Japanese Standard) Production and testing.

ABOOM has a large stock of nickel-based alloy, high-temperature alloy round Bars, tube billets, and high-temperature alloy, nickel-based alloy steel plate stocks.

The company has vacuum induction furnace, semi-vacuum intermediate frequency induction furnace, medium and high temperature heat treatment electric furnace, and electroslag remelting furnace. 6 ton, 4 ton, 1 ton free forging hammer, steel pipe hot rolling cold rolling unit, annealing furnace, round bar hot rolling cold drawing unit and other production equipment. Testing facilities include direct reading spectrometer in front of the furnace, spectrophotometer, chemical analysis laboratory, mechanical performance laboratory (with universal testing machine, hardness testing machine), metallographic laboratory, ultrasonic non-destructive testing and other types of testing equipment, effective Guaranteed product quality.

ABOOM "Your success is the most important thing in our hearts" as a corporate purposes，We firmly believe in building customers' trust with integrity, satisfying customers' requirements with quality, and solving customers' worries with excellent after-sales service, striving to develop a broader specialty alloy market with strong advantages, and continue to create greater goals. 

The supplied nickel-based and high-temperature alloy products are widely used in petrochemical, aerospace, military equipment, power plant metallurgy, desulfurization and destocking, chemical fiber machinery, papermaking machinery, pharmaceutical equipment, food industry, marine transportation, chemical ships, food machinery and many other fields.