33B2 - ISO 4954-1-2024

Grade	33B2
Corresponding Standard	ISO 4954-1-2024 Steels for Cold Heading and Cold Extruding - Technical Delivery Conditions - Part1: Non-Alloy and Alloy Steels
Classification	Alloy Steel

33B2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	B
Minimum Value	0.3	-	0.6	-	-	-	-	0.0008
Maximum Value	0.35	0.3	0.9	0.025	0.025	0.3	0.25	0.005

33B2 Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %
5＜d≤25	+AR or +PE	-	-
5＜d≤25	+AC or +AC+PE	≤550	≥62
5＜d≤10	+AR+C	-	-
10＜d≤25		-	-
2≤d≤5	+AR+C+AC	≤540	≥64
5＜d≤25		≤530	≥64
2≤d≤5	+AR+C+AC+LC	≤580	≥62
5＜d≤25		≤570	≥62
5＜d≤10	+AC+C	≤640	≥57
10＜d≤25		≤630	≥57

①+AR=as hot-rolled；+AR or +PE=as hot-rolled or peeled；+AR+C=as hot-rolled+cold drawn；+AR+C+AC=as hot-rolled+cold drawn+spheroidized；+AR+C+AC+LC=as hot-rolled+cold drawn+spheroidized+skin passed；+AC= spheroidized ；+AC or +AC+PE=spheroidized or spheroidized+peeled；+AC+C=spheroidized +cold drawn；+FP=treated to ferrite-pearlite structure and hardness range；+AC+C+AC=spheroidized +cold drawn + spheroidized；+AC+C+AC+LC=spheroidized +cold drawn + spheroidized + skin passed

1 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
33B2	33B2	1.5514

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China	Japan	United States	International Organization for Standardization	European Standard
GB	JIS	ASTM	ISO	EN
ML33B	SWRCHB334	10B33	33B2	33B2

33B2 Corresponding Standards(Same grade name, different standards)

1	EN 10263-4-2001
	33B2 1.5514
2	DIN EN 10263-4-2018
	33B2 1.5514
3	EN 10263-4-2017
	33B2 1.5514
4	ISO 4954-2018
	33B2
5	ISO 4954-1-2024
	33B2

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