Grade A193 B8CLN Class 1D
USA UNS S34751
Other Names
Corresponding Standard ASTM A193/A193M-2019
Alloy-steel and stainless steel bolting for high temperature or high pressure service and other special purpose applications
Classification Austenitic Stainless Steel
Properties Corrosion Resistance Forgability Weldability
A193 B8CLN Class 1D Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni N Nb More
Minimum Value 0.005 - - - - 17 9 0.06 0.2 Nb≥15C
Maximum Value 0.02 1 2 0.045 0.03 19 13 0.1 0.5
Note: The intentional addition of Bi, Se,Te, and Pb is not permitted
A193 B8CLN Class 1D Mechanical Properties
diameter
d
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
All Sizes Carbide Solid Solution Treatment ≥515 ≥205 ≥30 ≥50 ≤223
A193B8CLNClass1D Corresponding Standards(Same grade name, different standards)

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