St44-2 1.0044 - DIN 17100-1980

Grade	St44-2
Germany W-Nr.	1.0044
Corresponding Standard	DIN 17100-1980 Steels for General Structural Purposes Quality Standard
Classification	Carbon Steel

St44-2 Chemical Element Composition Content (%)

Component	C	P	S	N
Minimum Value	-	-	-	-
Maximum Value	0.21	0.05	0.05	0.009

①For product thickness t >100mm，C content according to the agreement
②For every 0.005% decrease in P below the specified maximum value, N may be increased by 0.001%. The nitrogen (N) content shall not exceed 0.012% in the ladle analysis and 0.014% in the product analysis.
③The content may not exceed 0.55%Si and 1 .60% Mn in the ladle analysis or 0.60%Si and 1 .70% Mn in the sample analysis.

St44-2 Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t＜3	430~580	≥275	12~18
3≤t≤16	410~540	≥275	20~22
16＜t≤40	410~540	≥265	20~22
40＜t≤63	410~540	≥255	19~21
63＜t≤80	410~540	≥245	18~20
80＜t≤100	410~540	≥235	18~20

① Tensile test values apply to longitudinal specimens for steel with a width < 600 mm; for steel with a width ≥ 600 mm, transverse specimens shall be used.
② U=hot-rolled, non-heat-treated; N=normalized.
③ Impact energy absorption: The average of three tests is taken as the test result. The minimum average value is 23 or 27 J, and only one individual value is allowed to be up to 30% below the maximum (average) value.

New and Old Grade Replacement List

Corresponding Standard	Grade
DIN 17100-1980	Grade Germany W-Nr.
DIN EN 10025-2-2019	Grade Germany W-Nr.

1 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

China		Japan	United States	Germany		France	Russia	Sweden	United Kingdom
GB	ISC	JIS	ASTM	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	SS	BS EN/BS
Q255A Q255D (A4) (C4)	U12552 U12555	SM400A SM400B (SM41A) (SM41B)	A709M Gr.36	St44-2	1.0044	E28-2	Ст4кп-2 Ст4кп-3 БСт4кп-2	1412	43B

2 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
Q225A Q275Z	SS400	A283D A529 Gr.D	E275B	RSt42-2 St 44-2	E28-2	S275JR Fe430B①	1.0044	St4ps St4sp	1411 1412	161-430 43A 43B

St44-2 Corresponding Standards(Same grade name, different standards)

1	DIN 17100-1980
	St44-2 1.0044
2	DIN 1652-2-1990
	St44-2 1.0044
3	Q/BQB 303-2018
	St44-2
4	Q/BQB 130-2003
	St 44-2

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