17B2 1.5502 - EN 10263-4-2017

Grade	17B2
European Standard Steel Grade	1.5502
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

17B2 Chemical Element Composition Content (%)

Component	C	Si ^ⓔ	Mn	P	S	Cr ^ⓕ	Cu	B
Minimum Value	0.15	-	0.6	-	-	-	-	0.0008
Maximum Value	0.2	0.3	0.9	0.025	0.025	0.3	0.25	0.005

17B2 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %
Bar, rod, wire; 5<d≤25	Untreated or Pickling (+U or +PE)	≤540	≥60
Bar, rod, wire; 5<d≤25	Spheroidizing or Spheroidizing and Peeling (+AC or +AC+PE)	≤460	≥68
Wire; 5<d≤10	Untreated and Cold Drawn (+U+C)	≤630	≥55
Wires; 10<d≤25	Untreated and Cold Drawn (+U+C)	≤620	≥55
Wire; 2<d≤5	Unheated, Cold Drawn, and Spheroidized (+U+C+AC)	≤450	≥70
Wire Rods; 5<d≤25	Unheated, Cold Drawn, and Spheroidized (+U+C+AC)	≤440	≥70
Wire; 2<d≤5	Unheated, Cold Drawn, Spheroidized, and Quenched Rolling (+U+C+AC+LC)	≤490	≥68
Wire Rods; 5<d≤25	Unheated, Cold Drawn, Spheroidized, and Quenched Rolling (+U+C+AC+LC)	≤480	≥68
Wire; 5<d≤10	Spheroidizing + Cold Drawn (+AC+C)	≤550	≥63
Wires; 10<d≤25	Spheroidizing + Cold Drawn (+AC+C)	≤540	≥63

1 Approximate Comparison Table

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM/AISI	ISO	EN
ML20B GB/T 6478-2015 GB/T 6478-2001	A70204	SWRCHB 223 JIS G3508-1	10B21 ASTM A29/A29M-12 ASTM A510/A510-13	CE20BG1 ISO 4954-1993	17B2 EN 10263-4-2001

2 Approximate Comparison Table

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
17B2	17B2	1.5502

17B2 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!