Stainless Steel Grade XM-19
Introduction
XM-19 stainless steel is an austenitic stainless steel with a blend of strength and corrosion resistance that is higher than stainless steel grades 316, 316/316L, 317, and 317/317L .
The high strength, corrosion resistance, and low magnetic permeability of this alloy allows it to be used as a material for medical implants.
The following sections will discuss in detail about stainless steel grade XM-19.
Chemical Composition
The chemical composition of stainless steel grade XM-19 is outlined in the following table.
Properties
The mechanical and physical properties of stainless steel grade XM-19 are tabulated below.
Other Designations
- AMS 5764
- ASTM A240
- ASTM A276
- ASTM A312
- ASTM A314
- ASTM A403
- ASTM A479
- ASTM F1314
- NACE MR0175/ISO 15156-3
- NACE MR0103
Fabrication and Heat Treatment
Machinability
Stainless steel grade XM-19 has machinability characteristics that are similar to other austenitic stainless steels; however it requires slower speeds, more power, and higher rigidity due to its high work hardening rate. It is recommended that coated carbide tooling be used.
Forming
Stainless steel grade XM-19 can be formed using the same methods applied for other austenitic stainless steels. More power for forming and forging is needed for this alloy. Forging can be done at 1177-1204°C (2150-2200°F).
Welding
Welding of stainless steel grade XM-19 can be performed using traditional joining processes. Recommended filler metal should be Nitronic® 50W (AWS E/ER209).
Heat Treatment
Final annealing process performed for several of the applications, is done at 1065°C (1950°F), which is followed by water quenching. In case this material is used in a strongly corrosive environment, annealing should be done at 1121°C (2050°F). This alloy cannot be hardened by heat treatment.
Markets
Stainless steel grade XM-19 is widely used in the following sectors:
- Textile
- Marine
- Nuclear
- Medical
- Fertilizer
- Chemical
- Petroleum
- Petrochemical
- Food processing
- Pulp and Paper
Applications
Some of the key products made using XM-19 include:
- Tanks
- Valves
- Chains
- Cables
- Fittings
- Fasteners
- Pressure vessels
- Saltwater pumps
- Marine hardware
- Marine pump shafts
- Screens and wire cloths
- Photographic equipment
- Underwater robotic arms
- Positive displacement pumps
Stainless and Alloys
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Specialty Steel Supply Inc. is one of the largest distributors of austenitic, precipitation hardened, duplex and martensitic stainless steels. We have a wide range of products and types of stainless steel round bar and our well trained staff offers many years of experience in all aspects of the steel industry. Our ability to procure and source metals from all parts of the world allows us to stay competitive in a global marketplace. We are committed to developing and servicing just in time inventory programs.
Specialty Steel Supply
19201 Circle Lake Drive
Pinehurst, Texas 77362
info@specialtysteelsupply.com
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