Agrico

Sanjay Castings
Manfacturer & Supplier of all types of Engine Valves Seats

Quality Control

Our team is a perfect blend of management and technical expertise. We specialize in blending the appropriate Technology to derive the right product. Our Technology experts and Application Specialists work hand in hand while proposing outstanding Quality with Best Price.

Quality deals with Perfection which comes out of specialization for manufacturing particular product. We maintain Perfect chemical composition and 100% accuracy in all aspect of manufacturing process.

O.D. Roundness :

Outer diameter : 0.013mm maximum

O. D. to Bottom Perpendicularity

0.002mm

Seat Surface Gauge Height

The gauge height tolerance for the seat surface : ± 0.04mm.

Seat Surface Finish

0.8 Ra

Seat Surface Run-out to Bottom Face and O D

0.04mm Max.

Seat Surface Angle

± 0.25º

Line Profile for Seat Surface

0.02mm.

"CUMMINS KT, NT, NH" O.E. STANDARD MATERIAL COMPOSITION FOR VALVE SEAT INSERTS
EXHAUST NON MAGNETIC INLET MAGNETIC
Carbon 1.0% to 1.5% Carbon 1.5% to 2.20%
Silicon 0.8% to 1.3% Silicon 0.6% to 1.0%
Manganese 0.6% to 1.0% Manganese 0.6% to 1.0%
Tungsten 8.0% to 10.0% Phosphorus 0.04% Max.
Vanadium 0.75% to 1.5% Sulfur 0.07% Max.
Chrome 16.0% to 18.0% Chrome 24% to 28%
Molybdenum 10.0% to 12.0% Molybdenum 2.0% to 2.5%
Nickel 22.0% to 26.0% Nickel 1.0-2.0%
Cobalt 3.0%-5.0% Hardness 40 to 44 HRC
Hardness 40 to 44 HRC - -
Standard Composition:
Material Std. A(%) Std. B(%) Std. C(%) Std. D(%)
C 1.5% to 2.20% 1.5% to 2.20% 1.5% to 2.20% 1.5% to 2.20%
Si 0.8% to 1.0% 0.8% to 1.0% 0.8% to 1.0% 0.8% to 1.0%
Mn 0.8% to 1.0% 0.8% to 1.0% 0.8% to 1.0% 0.8% to 1.0%
P 0.04% Max. 0.04% Max. 0.04% Max. 0.04% Max.
S 0.07% Max. 0.07% Max. 0.07% Max. 0.07% Max.
Cr 18% to 22% 12% to 14% 12% to 14% 5% to 6%
Mo 0.75% to 1.5% 2% to 2.5%
Ni 3% to 5% 0.5% Max. 0.5% 0.5%

Full Form of above abbreviation

Material  
C Carbon
Si Silicon
Mn Manganese
P Phosphorus
S Sulfur
Cr Chrome
Mo Molybdenum
Ni Nickel