Material – BS 434 S 20

Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate,Sheet and Strip for Pressure Vessels and for General Applications

Group - Ferrous Stainless Steel Alloys

Sub Group - BS 434 S 20 Chromium and Chromium-Nickel Stainless Steel for Pressure Vessels and for General

Applications

Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries

Grade Belongs to the Industry - Steel and Wire

Chemical Composition
CarbonC %0.120 max.
SiliconSi %1.000 max.
ManganeseMn %1.000 max.
PhosphorusP %0.040 max.
SulphurS %0.030 max.
ChromiumCr %16.000 - 18.000
MolybdenumMo %0.750 - 1.250
IronFe %Balance
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Heat Treatment
Annealing or Hardening + Tempering
Mechanical Properties
Tensile Strength in Mpa650 min.
Yield Strength in Mpa-
Elongation in %-
Reduction of Area in %-
Hardness in BHN-
Impact in Joule-

Cross Reference Table

Material Standard Country Grade Belong to the Industry
A240 UNS S43400 ASTM USA Steel, Plate, Sheet and Strip
S43400 UNS USA Steel
51434 SAE USA Steel
A651 TP 434 ASTM USA Steel and Tube
A959 Type 434 ASTM USA Steel
STS 434 KS Korea Steel, Wire and Rod
SUS 434 JIS Japan Steel, Wire and Rod