Grade 30MoB1
European Standard Steel Grade 1.5408
Corresponding Standard EN 10263-4-2017
Steel Rod, Bars and Wire For Cold Heading and Cold Extrusion Part 4: Technical Delivery Conditions for Steels for Quenching and Tempering
Classification Alloy Steel
30MoB1 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Cu Mo B
Minimum Value 0.28 - 0.8 - - - - 0.08 0.0008
Maximum Value 0.32 0.3 1 0.025 0.025 0.3 0.25 0.12 0.005
30MoB1 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Reduction of Area
ψ
%
Bars, rods, wires; 5<d≤40 Spheroidizing or Spheroidizing and Peeling (+AC or +AC+PE) ≤530 ≥62
Wire; 2<d≤5 Unheated, Cold Drawn, and Spheroidized (+U+C+AC) ≤530 ≥64
Wire; 5<d≤40 Unheated, Cold Drawn, and Spheroidized (+U+C+AC) ≤510 ≥64
Wire; 2<d≤5 Unheated, Cold Drawn, Spheroidized, and Quenched Rolling (+U+C+AC+LC) ≤570 ≥62
Wire; 5<d≤40 Unheated, Cold Drawn, Spheroidized, and Quenched Rolling (+U+C+AC+LC) ≤550 ≥62
Wire; 5<d≤40 Spheroidizing + Cold Drawn (+AC+C) ≤630 ≥57
Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
International Organization for Standardization European Standard
ISO EN Numerical Grade
30MoB1 30MoB1 1.5408
30MoB1 Corresponding Standards(Same grade name, different standards)

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