Jethete

Jethete M152 (BS S151/ S159) | MSRR 6503 | AMS 5719 | DTD 5066 | WS 1.4933 | AECMA FE-PM37 | UNS S64152

This grade is a high strength Alloy Steel has very good toughness and creep rupture strength. Excellent for use in highly stressed turbine blades as well as turbine discs, screws, shafts, bolts, pins and rings.

Chemical Composition (Weight %)

Weight% Cr Si Mn V Ni Mo Fe N S
Jethete  0.08 – 0.15 11.00 – 12.50 0.40 – 0.50 0.25 – 3.00 0.20 – 2.00 0.01 – 0.13 0.05 2.00 0.90 – 1.50

Typical Mechanical Properties (Min)

Condition Tensile Strength, N/mm21 Yield Strength 0.2%, N/mm2  Elongation %  Reduction of Area %  Impact Strength KCU, J/CM2
HT 1150 800 14 120

Heat Treatment

M152 can be annealed by heating to 1300F for 4 hours then air cool To harden and temper M152 treat at 1800/1925F for 2 hours and temper 750/1300F, depending on properties required

The standard heat treatments for Jethete M152 are as follows

  • BS S151 (MSRR 6503)
    Softening: 670-720° C for 6 hours followed by air cool – Designated BS S151A
    Harden: 1050° C (+/-10) followed by air cool
    Temper: 650° C (+/-5) followed by air cool – Designated BS S151D
  • BS S159
    Softening: 680-700° C for 2 hours min followed by air cool – Designated BS S159A
    Harden: 1050° C (+/-10) for 30 minutes min followed by air cool
    Temper: 560-590° C for 3 hours min followed by air cool – Designated BS S159D
    Stress Relieve: Can be performed on hardened and tempered bars if a cold rolling operation has taken place, by holding at 30° C lower than the tempering temperature.
  • AMS 5719
    Anneal: 691° C (+/-11) for 6 hours min followed by air cool
    Harden:1052° C (+/-) for 30 mins followed by oil quench
    1st Temper: 560-590° C for 1 hour min followed by air cool
    2nd Temper: 538-560° C for 3 hours min followed by air cool

Mechanical Properties Comparison

Grade Treatment Tensile Strength
Mpa		 Yield Strength
Mpa		 Elongation % Hardness HB Ruling Section
S151A
S151D		 Softened
Finally Heat Treated		 930-1130 780 14 311max
286-311		 -150mm
S159A
S159D		 Softened
Finally Heat Treated		 1100-1300 900 8 311 max
321-388		 50mm
AMS 5719
AMS 5719		 Annealed
Hardened & Double Templerd		 1069 min 896 12 311
341-375		 –
–

Available Forms

  • Round bar
  • flat bar
  • strip
  • wire
  • forgings

Specifications

Jethete M152
BS S151
BS S159
MSRR 6503
MSRR 6504 – Jethete M152 sheet
MSRR 6514 – Jethete M 152 sheet
AMS 5719
DTD 5066
WS 1.4933
WS 1.4938
WS 1.4939
Z12CNDV12
AECMA FE-PM37
UNS S64152

 

FountainHead Alloys is ISO 9001:2015 approved. © FountainHead Alloys 1996