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{"title":"High Purity Nickel Alloy Bar Ni200 Ni201 Welding Rod N6 N4 Special Metal Hot","imgUrl":"https:\/\/img.chinax.com\/nimg\/14\/28\/1565b75a8660ab2d7575767bac4b-200x200-1\/high_purity_nickel_alloy_bar_ni200_ni201_welding_rod_n6_n4_special_metal_hot_rolled_round_bar.jpg","attrs":{"Brand Name":"DINGSCO","Model Number":"According to customers' requests","Certification":"ISO 9001\uff1a2015, PED 2014\/68 EU, API 6A, API-20B, TSG, NORSOK","Place of Origin":"China"}}
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{"title":"Special Metals Inconel 718 Bar Stock , Nickel Alloy 718 With Ending Machinabilit","imgUrl":"https:\/\/img.chinax.com\/nimg\/3b\/82\/890fabb7578bdb03fd52988f469b-200x200-1\/special_metals_inconel_718_bar_stock_2c_nickel_alloy_718_with_ending_machinability.jpg","attrs":{"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"}}
{"title":"Incoloy 925 Forging Round Bar High Temperature Age Hardening Nickel-Based Alloy","imgUrl":"https:\/\/img.chinax.com\/nimg\/8f\/fe\/ea63f316d1d1e51dd2d2c59d8900-200x200-1\/incoloy_925_forging_round_bar_high_temperature_age_hardening_nickel_based_alloy.jpg","attrs":{"Brand Name":"DINGSCO","Model Number":"According to customers' requests","Certification":"ISO 9001\uff1a2015, PED 2014\/68 EU, API 6A, API-20B, TSG, NORSOK","Place of Origin":"China"}}
{"title":"Superalloy UNS N04400 Forged Rods Copper Nickel Round Bar Forging Ingots","imgUrl":"https:\/\/img.chinax.com\/nimg\/b5\/60\/82d47f8417690faaf815ced15c84-200x200-1\/superalloy_uns_n04400_forged_rods_copper_nickel_round_bar_forging_ingots.jpg","attrs":{"Brand Name":"DINGSCO","Model Number":"According to customers' requests","Certification":"ISO 9001\uff1a2015, PED 2014\/68 EU, API 6A, API-20B, TSG, NORSOK","Place of Origin":"China"}}
{"title":"Inconel 690 Bar Alloy Forging Rods High Chromium Nickel Alloy Round Bar","imgUrl":"https:\/\/img.chinax.com\/nimg\/1e\/2e\/83ee0937def157e50651b7f9fc10-200x200-1\/inconel_690_bar_alloy_forging_rods_high_chromium_nickel_alloy_round_bar.jpg","attrs":{"Brand Name":"DINGSCO","Model Number":"According to customers' requests","Certification":"ISO 9001\uff1a2015, PED 2014\/68 EU, API 6A, API-20B, TSG, NORSOK","Place of Origin":"China"}}
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
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1998
Total Annual:
70 million-100 million
Employee Number:
50~60
Ecer Certification：
Verified Supplier
Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications.
We have complete advanced technology facilities t... Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications.
We have complete advanced technology facilities t...
