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High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar
High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar
High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar
High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar
High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar
High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar
Specifications
Brand Name :
DINGSCO
Model Number :
According to customers' requirements
Certification :
ISO 9001:2015,PED 2014/68/EU,API 6A,API-20B,TSG,NORSOK
Place of Origin :
China
MOQ :
Negotiable
Price :
Negotiable
Payment Terms :
T/T
Supply Ability :
Negotiable
Delivery Time :
(Sample order) 7 days
Packaging Details :
According to customers' requests
Product Name :
High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar
Size Range :
Ø8-Ø200,as per your requirements
Application :
Aerospace,Oil and Gas Industry,Chemical Processing Equipment,Nuclear Energy,Medical Devices
Material :
Stainless Steel
Type :
Round bar
Grade :
Nitronic 50 UNS S20910, XM-19
Surface Treatment :
Bright
Packaging :
Standard Export Package
Description

High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar

Nitronic 50 (UNS S20910, XM-19) round bar and forging bar are high-strength austenitic stainless steels with excellent corrosion resistance, wear resistance, and oxidation resistance, designed for harsh service environments up to 800°C.
1. Material Overview
Nitronic 50 (UNS S20910, corresponding to ASTM XM-19) is a nitrogen-strengthened austenitic stainless steel, belonging to the Fe-Cr-Ni-Mn-N alloy system. The alloy achieves high strength through solid solution strengthening of nitrogen and manganese, while maintaining excellent austenitic structure stability. Its chemical composition is carefully balanced, with high chromium (19-21%) and nickel (11.5-13.5%) contents to ensure corrosion resistance, and additions of nitrogen (0.2-0.4%) and manganese (4.0-6.0%) to enhance mechanical properties without compromising ductility and weldability.
2. Key Technical Properties
  • Temperature Capability: Suitable for continuous service in the temperature range of -270°C to 800°C. It maintains good toughness at cryogenic temperatures and excellent oxidation resistance at elevated temperatures, with no significant structural degradation even after long-term exposure to 700-800°C.
  • Corrosion Resistance: Exhibits superior resistance to general corrosion, pitting corrosion, crevice corrosion, and stress corrosion cracking (SCC) in various aggressive media, including seawater, acidic solutions, alkaline environments, and chloride-containing media. Its pitting resistance equivalent (PREN) is typically above 35, outperforming conventional austenitic stainless steels such as 316L.
  • Mechanical Strength: Boasts high tensile strength, yield strength, and hardness. Typical mechanical properties (annealed state): Tensile strength ≥ 860 MPa, Yield strength (0.2% offset) ≥ 450 MPa, Elongation ≥ 35%, Hardness (HB) ≤ 269. Forged bars exhibit enhanced strength and structural uniformity due to the forging process, with improved fatigue resistance under dynamic loads.
  • Wear & Abrasion Resistance: The nitrogen-strengthened austenitic structure, combined with fine carbide precipitates (if aged appropriately), provides excellent wear resistance, making it suitable for applications involving sliding or impact abrasion.
  • Structural Stability: Maintains stable austenitic structure even under extreme temperature fluctuations and long-term service, without phase transformation (e.g., no martensite formation at cryogenic temperatures or harmful intermetallic phase precipitation at elevated temperatures), ensuring consistent performance and dimensional integrity.
3. Typical Applications
Due to its comprehensive technical advantages, Nitronic 50 (UNS S20910, XM-19) round bar and forging bar are widely used in critical components across multiple harsh-environment industries:
  • Aerospace & Defense: Aircraft engine components, landing gear parts, fasteners, and missile guidance system components.
  • Oil & Gas: Downhole tools, wellhead equipment, valves, pumps, and offshore platform components (resistant to seawater corrosion and sour gas environments).
  • Chemical Processing: Reactors, heat exchangers, piping, and valves for handling corrosive chemicals (acids, alkalis, salts) at elevated temperatures and pressures.
  • Power Generation: Gas turbine components, steam turbine parts, and boiler tubes in thermal power plants and nuclear power plants (excluding core components).
  • Marine Engineering: Ship propellers, shafts, marine hardware, and offshore wind turbine components (resistant to seawater erosion and marine atmospheric corrosion).
4. Relevant Standards
ASTM A276, ASTM A479, ASTM A182, ASTM A564 (for bar products); ASTM A668 (for forgings); UNS S20910; XM-19 (ASTM designation)

More Grades:

Grade UNS DENSITY EN/DIN W.Nr CONDITION
Nickel 200 N02200 8.89 2.4066 Annealed
Nickel 201 N02201 8.89 2.4068 Annealed
MONEL 400 N04400 8.80 2.4360 Annealed
MONEL K-500 N05500 8.44 2.4375 Aged
INCOLOY 825 N08825 8.14 2.4858 Annealed
INCOLOY 925 N09925 8.08 - Aged
INCOLOY 926 N08926 8.1 1.4529 Sol.Annealed
INCOLOY A-286 S66286 7.94 - -
INCOLOY 800 N08800 7.94 1.4876 Annealed
INCOLOY 800H N08810 7.94 1.4958 Annealed
INCOLOY 800HT N08011 7.94 1.4959 Annealed
ALLOY 20 N08020 8.1 2.4660 Annealed
ALLOY 28 N08028 8.0 1.4563 Annealed
NIMONIC 80A N07080 8.19 2.4952 Aged
NIMONIC 901 N09901 8.14 2.4662 -
INCONEL 625 N06625 8.44 2.4856 Annealed
INCONEL 718 N07718 8.19 2.4668 Aged
INCONEL X-750 N07750 8.28 2.4669 Aged
INCONEL 600 N06600 8.47 2.4816 Annealed
INCONEL 601 N06601 8.11 2.4851 -
HASTELLOY C-276 N10276 8.87 2.4819 Annealed
HASTELLOY C-22 N06022 8.69 2.4602 Sol.Annealed
HASTELLOY C-4 N06455 8.64 2.4610 Sol.Annealed
HASTELLOY B-2 N10665 9.22 2.4617 Annealed
HASTELLOY B-3 N10675 9.22 2.4600 Annealed
HASTELLOY X N06002 8.22 2.4665 Aged
F44 S31254 8.0 1.4547 Annealed
F51 S31803 7.8 1.4462 Solution
F53 S32750 7.8 1.4410 Solution
F55 S32760 7.8 1.4501 Solution

High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar

High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round BarHigh-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar

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High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar

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Product Detail
Brand Name :
DINGSCO
Model Number :
According to customers' requirements
Certification :
ISO 9001:2015,PED 2014/68/EU,API 6A,API-20B,TSG,NORSOK
Place of Origin :
China
MOQ :
Negotiable
Price :
Negotiable
Contact Supplier
High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar
High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar
High-Strength Austenitic Stainless Steels Nitronic 50 UNS S20910 XM-19 Round Bar

Hunan Dinghan New Material Technology Co., LTD

Verified Supplier
3 Years
hunan, changsha
Since 1998
Business Type :
Manufacturer, Exporter, Seller
Main Products :
Nickel Alloy Forging Bar, Nickel Alloy Forging Ring, Nickel Alloy Valve Parts
Total Annual :
70 million-100 million
Employee Number :
50~60
Certification Level :
Verified Supplier
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