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Grade 44SMn28
Corresponding Standard ISO 683-18-2014
Bright steel products
Classification Carbon Steel
44SMn28 Chemical Element Composition Content (%)
Component C Si Mn P S
Minimum Value 0.4 - 1.3 - 0.24
Maximum Value 0.48 0.4 1.7 0.06 0.33
44SMn28 Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
5≤t≤10 Cold drawn (+C) 760~1030 ≥600 ≥5
10＜t≤16 Cold drawn (+C) 710~980 ≥530 ≥5
16＜t≤40 Cold drawn (+C) 660~900 ≥460 ≥6
40＜t≤63 Cold drawn (+C) 650~870 ≥430 ≥7
63＜t≤100 Cold drawn (+C) 630~840 ≥390 ≥7
16＜t≤40 As-rolled + peeled (+SH) 630~820 ≤241
40＜t≤63 As-rolled + peeled (+SH) 620~790 ≤231
63＜t≤100 As-rolled + peeled (+SH) 610~780 ≤228
5≤t≤10 Quenched and tempered and peeled (+QT+SH) 700~850 ≥520
10＜t≤16 Quenched and tempered and peeled (+QT+SH) 700~850 ≥480
16＜t≤40 Quenched and tempered and peeled (+QT+SH) 700~850 ≥420 ≥16
40＜t≤63 Quenched and tempered and peeled (+QT+SH) 700~850 ≥410 ≥16
63＜t≤100 Quenched and tempered and peeled (+QT+SH) 700~850 ≥400 ≥16
5≤t≤16 Quenched and tempered +Cold drawn (+QT+C) 850~1000 ≥595 ≥9
16＜t≤40 Quenched and tempered +Cold drawn (+QT+C) 700~900 ≥490 ≥11
40＜t≤100 Quenched and tempered +Cold drawn (+QT+C) 700~900 ≥490 ≥12
1 Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization France European Standard Russia United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS SAE ISO NF EN/NF EN Numerical Grade GOST BS EN/BS
Y40Mn
Y45Mn 		L20409 SUM42 SUM42
SUM43 		SUM42 1141 G11410 SAE 1144 44SMn28 40M5 44SMn28 1.0762 А10Г 212M44
2 Approximate Comparison Table
China International Organization for Standardization European Standard Russia
GB ISO EN Numerical Grade GOST
Y40Mn 44SMn28 44SMn28 1.0762 A40G
А40Г
3 Approximate Comparison Table
China Japan United States International Organization for Standardization Germany France European Standard Russia United Kingdom
GB JIS ASTM ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
Y40Mn SUM42 1141
1139 		44SMn28
35SMn20 		38SMn28 1.0760 38SMn28 38SMn28 1.0760 A40Г 38SMn28
4 Approximate Comparison Table
China Japan United States International Organization for Standardization
GB JIS ASTM ISO
Y45MnS SUM43 1144 44SMn28
44SMn28 Corresponding Standards(Same grade name, different standards)
1 ISO 683-9-1988
44SMn28
2 EN 10277-3-1999
44SMn28 1.0762
3 DIN EN ISO 683-4-2018
44SMn28
4 ISO 683-4-2016
44SMn28
5 ISO 683-18-2014
44SMn28
6 EN 10277-2018
44SMn28 1.0762
7 NF EN 10087-1999
44SMn28 1.0762

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