Jethete M-152
Request a quote for Jethete M-152Jethete M152 is a 12 percent chromium martensitic stainless steel with nickel and molybdenum additions that raise strength and toughness well above the plain 12Cr grades while keeping good oxidation resistance to around 1000F.
It is a long standing material for compressor discs, blades, shafts and other rotating steam and gas turbine hardware.
Stocked as bar and forging billet, supplied annealed for machining or heat treated to the ordered condition.
Sizes and stock
- Round bar: up to 15" DIA
- Flat bar and forgings: by request
Processing capabilities
- Billet conversion and open die, closed die and ring forging
- Solution treat, age and anneal to the applicable spec
- Saw cutting, trepanning, gun drilling and CNC machining
- Ultrasonic, penetrant dye, micrography and physical testing
Specifications
Material is released to the applicable specification with mill test reports and, on request, independent lab verification.
Why engineers specify Jethete M-152
- High strength and toughness for a 12Cr martensitic steel
- Good elevated temperature properties for compressor service
- Established turbine disc and blade material
- Available as billet for forging conversion
Nominal chemistry
Percent by weight, nominal composition per the governing specification. The mill test report for your heat is the controlling document.
Typical mechanical properties
| Condition | Tensile strength | Yield strength | Elongation | Hardness |
|---|---|---|---|---|
| Q&T | ~150 ksi | ~120 ksi | ~15% | - |
Typical published values for reference only, not for design. Properties vary with section size, product form and processing. Order to the specification and condition your drawing requires.
Typical applications
- Compressor discs and blades
- Turbine shafts
- Steam turbine rotating hardware
- High temperature fasteners
Fabrication notes
Machining
Nickel and cobalt superalloys work harden aggressively. Use rigid setups, sharp tooling, slow speeds, positive feed that stays under the hardened skin, and flood coolant. Age hardened material machines far more slowly than solution treated material, so rough before aging wherever the print allows.
Welding
Most solid solution grades weld readily with matching filler. Age hardenable grades such as 718 and Waspaloy are welded in the solution treated condition and aged afterward to control strain age cracking.
Forming
Hot working ranges are narrow and forces are high. Cold form in the annealed condition with intermediate anneals, and stress relieve before final heat treatment.
Jethete M-152 compared with similar grades
418 Greek Ascoloy
Tungsten bearing 12Cr grade used in similar compressor applications.
422
12Cr grade for higher temperature steam turbine service.
Designations and cross reference
- Material family
- Nickel & Cobalt Alloys
Working from an obsolete, foreign or superseded designation? Send it over and we will cross reference it to a current grade and specification.
Quality, testing and traceability
Supplied with mill test reports and heat traceability, with ultrasonic inspection, penetrant dye, micrography, grain size, stress rupture and mechanical testing available on request.
We are AS9100D and ISO 9001:2015 registered. If our stock does not already carry the inspection your specification requires, we can quote the material with that work performed. More on our quality system
Available forms
Custom sizes converted from billet, plus saw cut, waterjet and near-net blanks. See custom conversions
Jethete M-152 frequently asked questions
What is Jethete M-152?
Jethete M152 is a 12 percent chromium martensitic stainless steel with nickel and molybdenum additions that raise strength and toughness well above the plain 12Cr grades while keeping good oxidation resistance to around 1000F.
What forms is Jethete M-152 available in?
We supply Jethete M-152 in bar, forging. Custom sizes are converted from billet, and we can provide saw cut, waterjet or near net blanks so material arrives closer to your finished part.
What specifications can Jethete M-152 be supplied to?
Commonly ordered specifications include AMS 5718, AMS 5719, C50TF68 (capability). Material is released to the specification and condition on your purchase order, with mill test reports supplied as standard.
What conditions can Jethete M-152 be ordered in?
We can supply Q&T. If our stock is not already in the condition you need, we can quote it with the heat treatment performed before shipment.
Can you cut Jethete M-152 to size?
Yes. Saw cutting, waterjet, laser and shearing are available, along with trepanning, gun drilling, lathe turning and CNC machining, so you can order blanks or rough machined pieces rather than full lengths.
Do you provide test reports and additional testing on Jethete M-152?
Every order ships with mill test reports and heat traceability. If your print calls for ultrasonic inspection, penetrant dye, magnetic particle, chemical assay, micrography, hardness or mechanical testing and our stock does not already carry it, we can quote the material with that work performed.
Can Jethete M-152 be supplied to DFARS domestic melt requirements?
Tell us at quote stage if the order is DFARS or domestic melt restricted and we will confirm availability against that requirement before you commit.
What do you need to quote Jethete M-152?
Grade, form, dimensions, quantity, specification and condition, plus any testing or certification requirements and the date you need it. Send a drawing if you have one. Quotes are typically ready within 24 hours.
How does Jethete M-152 compare with 418 Greek Ascoloy?
Tungsten bearing 12Cr grade used in similar compressor applications.