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6d. 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
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

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