Ambient Temperature Mechanical Properties of Stainless Steels to BS EN 10269

Ambient temperature mechanical properties of stainless steels to BS EN-10269
BS EN 10269 is the material standard for stainless and heat-resisting steels, a selection of low alloy steels and
some nickel alloys for fasteners. The ambient temperature mechanical properties shown in this article include 0.2%
proof strength, tensile strength, elongation, reduction in area and impact, (Charpy), strength in the finally heat treated condition.
Specified hardness levels for the steels for subsequent quenching and tempering, (1.4923, 1.4938, and 1.4913), in their
delivery condition are also included.

AMBIENT TEMPERATURE MECHANICAL PROPERTIES OF STAINLESS STEELS TO BS EN 10269
Introduction
BS EN 10269 is the material standard for stainless and heat-resisting steels, a selection of low alloy steels and some
nickel alloys for fasteners. The ambient temperature mechanical properties shown in this article include 0.2% proof strength,
tensile strength, elongation, reduction in area and impact (charpy) strength in the finally heat treated condition. Specified
hardness levels for the steels for subsequent quenching and tempering (1.4923 1.4938 and 1.4913) in their delivery condition
are also included in a separate table. The final heat treatment conditions for each grade are also tabulated.

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The data given is not intended to replace that shown in individual standards to which reference should always be made.

Mechanical properties at room (ambient) temperature for steels supplied in a delivery conditions
Designation Heat treatment condition Brinell hardness HB max
Steel name Steel number
X22CrMoV12-1 1.4923 A 302
X12CrNiMoV12-3 1.4938 A 311
X19CrMoNbVN11-1 1.4913 A 302
Mechanical properties at room (ambient) temperature for steels in their final treatment condition

Steel name Steel number Condition Max dia. mm Rp (1) Rm (2) El (3) Z (4) KV (5)
Steels for quenching and tempering
X22CrMoV12-1 1.4923 QT1 160 600 800/950 14 40 27
QT2 160 700 900/1050 11 35 20
X12CrNiMoV12-3 1.4938 QT 160 760 930/1130 14 40 40
X19CrMoNbVN11-1 1.4913 QT 160 750 900/1050 12 40 20
Austenitic steels
X2CrNi18-9 1.4307 AT 160 175 450/680 45 – 100
C700 35 350 700/850 20 – 80
C800 25 500 800/1000 12 – 80
X5CrNi18-10 1.4301 AT 160 190 500/700 45 – 100
C700 35 350 700/850 20 – 80
X4CrNi18-12 1.4303 AT 160 190 500/700 45 – 100
C700 35 350 700/850 20 – 80
C800 25 500 800/1000 12 – 80
X2CrNiMo17-12-2 1.4404 AT 160 200 500/700 40 – 100
C700 35 350 700/850 20 – 80
C800 25 500 800/1000 12 – 80
X5CrNiMo17-12-2 1.4401 AT 160 200 500/700 40 – 100
C700 35 350 700/850 20 – 80
C800 25 500 800/1000 12 – 80
X2CrNiMoN17-13-3 1.4429 AT 160 280 580/800 40 – 100
X3CrNiCu18-9-4 1.4567 AT 160 175 450/650 45 – 100
C700 35 350 700/850 20 – 80
X6CrNi18-10 1.4948 AT 160 185 500/700 40 – 90
X10CrNiMoMnNbVB15-10-1 1.4982 AT + WW 100 510 650/850 25 – 50
X3CrNiMoBN17-13-3 1.4910 AT 160 260 550/750 35 – 100
Guidance for Heat Treatment
Steel number H T Symbol Quench/anneal (1) Cooling (2) Temper (3)
1.4923 QT1 1020/1070 a,o,w 680/740
QT2 1020/1070 a,o,w 660/720
1.4938 QT 1035/1062 o 600/670
1.4913 QT 1100/1130 a,o 670/720
1.4307, 1.4301, 1.4303, 1.4567 AT 1000/1100 w,a –
1.4404, 1.4401, 1.4429, AT 1020/1120 w,a –
1.4948 AT 1000/1080 w,a –
1.4982 AT + WW 1030/1070+650/750 w+a –
1.4910, 1.4919 AT 1020/1100 w,a –
1.4941 AT 1070/1150 w,a –
1.4980 AT + P 970/990 o,w 710/730
1.4986 WW + P WW at 750/850 – 750/800
Notes
(1) Quenching or solution annealing temperature C
(2) Type of cooling a – air ; o – oil ; w – water
(3) Tempering or precipitation treatment temperature C
AT – solution annealed QT – quenched and tempered P – precipitation hardened WW – warm worked

Related Articles
Chemical compositions of stainless steels to BS EN 10269

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