Grade 38B2
European Standard Steel Grade 1.5515
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 Carbon Steel
38B2 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Cu B
Minimum Value 0.35 - 0.6 - - - - 0.0008
Maximum Value 0.4 0.3 0.9 0.025 0.025 0.3 0.25 0.005
38B2 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Reduction of Area
ψ
%
Bar, rod, wire; 5<d≤25 Spheroidizing or Spheroidizing and Peeling (+AC or +AC+PE) ≤570 ≥62
Wire; 2<d≤5 Unheated, Cold Drawn, and Spheroidized (+U+C+AC) ≤560 ≥64
Wire Rods; 5<d≤25 Unheated, Cold Drawn, and Spheroidized (+U+C+AC) ≤550 ≥64
Wire; 2<d≤5 Unheated, Cold Drawn, Spheroidized, and Quenched Rolling (+U+C+AC+LC) ≤600 ≥62
Wire Rods; 5<d≤25 Unheated, Cold Drawn, Spheroidized, and Quenched Rolling (+U+C+AC+LC) ≤590 ≥62
Wire; 5<d≤10 Spheroidizing + Cold Drawn (+AC+C) ≤660 ≥57
Wires; 10<d≤25 Spheroidizing + Cold Drawn (+AC+C) ≤650 ≥57
1 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States International Organization for Standardization European Standard
GB ISC JIS ASTM/AISI ISO EN
ML35B
GB/T 6478-2015
GB/T 6478-2001
A70354 SWRCHB 234
JIS G3508-1
10B35
ASTM A29/A29M-12
ASTM A510/A510-13
CE35B
ISO 4954-1993
38B2
EN 10263-4-2001
2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
International Organization for Standardization European Standard
ISO EN Numerical Grade
38B2 38B2 1.5515
3 Approximate Comparison Table Cold Heading Steel
China United States International Organization for Standardization European Standard
GB ASTM ISO EN
ML38B 10B38 38B2 38B2
38B2 Corresponding Standards(Same grade name, different standards)

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