Technical Details
AN ISO/TS 16949 : 2009 Certified Comapny
Valve Details


Types of Head


Types of Locks


SAE BS JS Wr No. C Si Mn Ni Cr N
SIL1 EN52 SUH1 1.4718 0.40-0.50 3.00-3.50 0.60 max. 0.60 max. 7.50-9.50 -
SILXB EN59 1.4747 0.75-0.85 1.75 -2.50 0.20 - 0.60 1.0-1.70 19.0-21.0 0.15-0.20
- - SUH11 - 0.45-0.55 1.00-2.00 0.60 max. 0.60 max. 7.50-9.50 -
EV-12 21-2N - 1.4875 0.50-0.60 0.08-0.25 7.00 - 9.50 1.50-2.75 19.25-21.50 0.20-0.40
EV-8 21-4N SUH35 1.4871 0.48-0.58 0.35 max. 8.00 -10.00 3.25-4.50 20.00-22.00 0.35-0.45
EV-15 23-8N - - 0.28-0.38 0.50-1.00 1.50 - 3.50 7.00-9.00 22.00-24.00 0.25-0.40
EV-4 21-12N SUH37 - 0.15-0.25 1.00 max. 1.00 - 1.60 10.00-12.00 20.50-22.50 0.15-0.30

  C Ni Cr Fe W Co
St # 1 2.5 - 30.0 3.0 12.0 Bal.
St # 6 1.0 - 28.0 3.0 4.0 Bal.
St # 12 1.35 - 29.0 2.5 8.0 Bal.
St # 32 1.80 22.0 26.0 - 12.0 Bal.
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