Structural Steel B16, B16, B16 Engine poppet valve information report to ASTM A193/A193M

B16 Structural Steel Properties Data

Chemical Composition of steel B16 Structural Steel: ASTM A193/A193M ,Cross Reference

B16 Structural Steel Applications and Specifications

B16 Engine poppet valve information report - Poppet valves control combustion chamber induction and exhaust gas flow in reciprocating combustion engines. Poppet valves are manufactured from iron, nickel, titanium, and cobalt-base metallic alloys that are often welded together in various combinations.

Martensitic and austenitic steels are used for intake valves. Specially designed high temperature martensitic alloys, austenitic alloys, and superalloys are used for exhaust valves.

Titanium alloys have been used for both intake and exhaust valves in some limited production, high performance applications. Special iron, nickel, and cobalt-base alloys are welded to many of the valve head alloys to improve seat face wear and corrosion resistance


The majority of intake valves for all applications are one-piece construction that also has significant usage in spark ignition engine exhaust valves.

  • ASTM A193/A193M - Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
  • SAE J 775 - Engine poppet valve information report

Mechanical properties at room temperature for B16 Structural Steel: ASTM A193/A193M

Tensile Strength,Rm(MPa)

Yield Strength,Rp 0.2(MPa)



Reduction of area,(%)


Product shapes we supply:

Cross Reference, Equivalent, Similar of B16 Structural Steel grade:


Conditions & Properties

  • +A Soft annealed
  • +AC Annealed to achieve spheroidization of the carbides
  • +QT Quenched and tempered
  • +WW Warm worked
  • +N Normalized
  • +NT Normalized and tempered
  • +AT Solution annealed
  • +C Cold drawn / Hard
  • +CR Cold rolled
  • +PE Peeled
  • +T Tempered