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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