XM-19
XM-19 properties and heat treatment forged piece, Including XM-19 application and specifications, We have all specifications，Including XM-19 steel plate, XM-19 sheet, XM-19 square steel, XM-19 flat bar,XM-19 round bar,XM-19 forgings, we can own production and sales.
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We can produce the XM-19 has the following specifications:
Round bar steel: 1mm to 3000mm
Square-shape steel: 1mm to 2000mm
Plate steel:0.1mm to 2500mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-219 mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
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Chemical composition % of the ladle analysis of grade XM-19 and Standards
NITRONIC 50 (XM-19) (UNS S20910)
Cr 22, Ni 12.5, Mn 5, Mo 2.25, Si 1 C 0.06 Fe bal.
High Performance Alloys stocks and produces this grade in the following forms: Bar, wire, sheet, plate, coil, fasteners and Forgings. Request quote on this grade. See our on-line catalog for sizes stocked
Overview
Austenitic Stainless
NITRONIC 50 Stainless Steel provides a combination of corrosion resistance and strength not found in any other commercial material available in its price range. This austenitic stainless has corrosion resistance greater than that provided by Types 316 and 316L, plus approximately twice the yield strength at room temperature. In addition, Armco NITRONIC 50 Stainless has very good mechanical properties at both elevated and sub-zero temperatures. And, unlike many austenitic stainless steels, NITRONIC 50 does not become magnetic when cold worked.
High Performance Alloys can make hot rolled, cold worked, & strain hardened High Performance stainless steel (HPSS) bars in house. Ask for our GFM Bulletin for more information about our bar processing capabilities. We have expanded to enhance product availability. See more information on NITRONIC 50 HS (High Strength) properties on the NITRONIC 50HS page.
Applications
- Superior corrosion resistance
- Almost double the yield strength
- Exceptionally low magnetic permeability
- Outstanding cryogenic properties
Outstanding corrosion resistance gives Armco's NITRONIC 50 stainless steel the leading edge for applications where Types 316. 316L, 317 and 317L are only marginal. It's an effective alloy for the petroleum, petrochemical, chemical, fertilizer, nuclear fuel recycling, pulp and paper, textile, food processing and marine industries.
- Components using the combination of excellent corrosion resistance and high strength currently include pumps, valves and fittings, fasteners, cables, chains, screens and wire cloth, marine hardware, boat and pump shafting, heat exchanger parts, springs and photographic equipment.
- Fastener - High strength, and higher strength fasteners can improve the durability of you equipment
- Marine hardware - Mastings, tie downs
- Marine and Pump shafts - better corrosion than types 304 and 316, with double the yield strength.
- Valves and fittings - better corrosion than types 304 and 316, with double the yield strength.
- Downhole rigging - better corrosion than types 304, 316 and 17-4, with double the yield strength in annealed condition.
- Reduced cross sections - better corrosion than types 304, 316 and 17-4,
Chemistry
Chemical Requirements
Ni
Cr
Mo
Mn
C
Si
Fe
Max
13.5
23.5
3.00
6.0
0.06
1.00
Bal
Min
11.5
20.5
1.50
4.0
Tensile Data
Mechanical Property Requirements
Ultimate Tensile
Yield Strength (0.2% OS)
Elong.
R/A
Hardness
Min
100 KSi
55 KSi
35%
55%
Max
293
Min
690 MPa
380 MPa
Max
There are other high strength properties available for sizes of bar, wire, sheet and plate. Inquire with a sales associate at High Performance Alloys for more information. See bulletin, or brochure on the material (above) for a quick overview.
Specifications
UNSS20910
Bar
ASTM A193 ASTM A194 ASTM A276 ASTM A479 AMS 5764
Wire
Sheet
ASTM A240 AMS 5861
Plate
ASTM A240 AMS 5861
Fitting
ASTM A182
ASTM A193 ASTM A 194 ASTM A276 ASTM A479 AMS 5764Weld Wire
A5.9 ER209
Din
1.4565
Annealing Temperature
NITRONIC 50 stainless steel can be supplied annealed at 1950 F to 2050 F (1066 C to 1121 C). For most applications, the 1950 F (1066 C) condition should be selected, as it provides a higher level of mechanical properties along with excellent corrosion resistance. When as-welded material is to be used in strongly corrosive media, the 2050 F (1121 C) condition should be specified in order to minimize the possibility of intergranular attack.
Corrosion Properties
Armco NITRONIC 50 stainless steel provides outstanding corrosion resistance - superior to Types 316, 316L, 317 and 317L in many media. For many applications the 1950 F (1066 C) annealed condition provides adequate corrosion resistance and a higher strength level. In very corrosive media or where material is to be used in the as-welded condition, the 2050 F (1121 C) annealed condition should be specified. High-Strength (HS) NITRONIC 50 bars are useful for applications such as shafting and bolting, but do not quite exhibit the corrosion resistance of the annealed conditions in all environments.
Intergranular Attack
The resistance to intergranular attack is excellent even when sensitized at 1250 F (675 C) for one hour to simulate the heat-affected zone of heavy weldments. Material annealed at 1950 F (1066 C) has very good resistance to intergranular attack for most applications. However, when thick sections are used in the as-welded condition in certain strongly corrosive media, the 2050 F (1121 C) condition gives optimum corrosion resistance.
Stress-Corrosion Cracking Resistance
In common with most stainless steels, under certain conditions, Armco NITRONIC 50 Stainless steel may stress-corrosion crack in hot chloride environments. When tested in boiling 420/0 MgCI2 solution, a very accelerated test, NITRONIC 50 Stainless Steel is between types 304 and 316 stainless steels in resistance to cracking. There is little difference in susceptibility to cracking whether in the annealed, high-strength (HS), or cold-drawn conditions.
Sulfide Stress Cracking
Both laboratory tests and field service experience have shown that Armco NITRONIC 50 stainless has excellent resistance to sulfide stress cracking in air conditions. NITRONIC 50 in both the annealed and high-strength (hot rolled) conditions has been included in the 1996 revision of NACE Standard MR-01 -75' "Sulfide Stress Cracking Resistant Metallic Material for Oil Field Equipment," at hardness levels up to RC 35 maximum. The resistance to cracking in laboratory tests in synthetic sour-well solution(5% NaCI + ½% acetic acid. saturated with H2S)
| Machining DATA | |
|---|---|
| Carbide tools are suggested for rates better than 50% of Type 304. |
|
| Machining Type | Suggested starting rates are: |
| Single Point turning : | Roughing - 0.15" depth, 0.015"/rev feed -175 SFM Finishing - 0.025" depth, 0.007"/rev feed - 200 SFM |
| Drilling : | 1/4" Dia hole - 0.004"/rev feed - 60 SFM 1/2" Dia hole - 0.007"/rev feed - 60 SFM 3/4" Dia hole - 0.010"/rev feed - 60 SFM |
| Reaming : | Feed - same as drilling - 100 SFM |
| Side and Slot Milling : | Roughing - 0.25" depth - 0.007"/tooth feed - 125SFM Finishing - 0.050" depth - 0.009"/tooth feed - 140SFM |
| These rates are for carbide tools, Type C-2 for roughing, drilling and reaming. Type C-3 for finishing. |
|
Machining performance
Download XM-19 the mechanical properties of the report, the report provides detailed performance analysis and application. Download >>
Principal Design Features
One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.
Machinability
Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.
Heat Treatment
CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.
Welding
Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.
Forging
Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.