EN 10269 Grade X8Ni9 (1.5662) Bolts, Studs, Nuts Manufacturer

EN 10269 Grade X8Ni9 (1.5662) Fasteners

9% Nickel Alloy Steel Bolts, Stud Bolts, Screws, Nuts & Washers in EN 10269 Grade X8Ni9 (1.5662)

EN 10269 Grade X8Ni9 (1.5662) Fasteners are 9% nickel alloy steel fasteners offering outstanding cryogenic toughness, high strength, and excellent resistance to brittle fracture at temperatures as low as -196°C, used in LNG storage, cryogenic vessels, and low-temperature process equipment.

EN 10269 X8Ni9 Chemical composition

Material designation	Chemical composition, % by mass
X8Ni9	1.5662	≤ 0,10	≤ 0,35	0,30 to 0,80	0.020	0.010	-	-	-	≤ 0,10	8,5 to 10,0	≤ 0,05	-
a Elements not listed in this table may not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the usefulness of the steel. b A controlled sulphur content of 0,015 % to 0,030 % improves the machinability and is therefore recommended and may be agreed at time of enquiry and order. For weldability, a controlled sulphur content of 0,008 % to 0,030 % is recommended and may be agreed at time of enquiry and order. c For requirements regarding magnetic properties up to a maximum of 0,28 % C.

Material designation

Chemical composition, % by mass

Name

Number

P max.

S max.

Al tot

Others

Steels for quenching and tempering

X8Ni9

1.5662

≤ 0,10

≤ 0,35

0,30 to 0,80

0.020

0.010

≤ 0,10

8,5 to 10,0

≤ 0,05

a Elements not listed in this table may not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the usefulness of the steel.
b A controlled sulphur content of 0,015 % to 0,030 % improves the machinability and is therefore recommended and may be agreed at time of enquiry and order. For weldability, a controlled sulphur content of 0,008 % to 0,030 % is recommended and may be agreed at time of enquiry and order.
c For requirements regarding magnetic properties up to a maximum of 0,28 % C.

EN 10269 X8Ni9 Mechanical properties

Mechanical properties at Room Temperature

Mechanical properties at room temperature and at 20 °C of steels in delivery conditions which support the Essential Safety Requirements of Directive 97/23/EC^b

Material designation	Heat treatment condition^a	Diameter c	Proof strength	Tensile strength	Elongation after fracture	Reduction in area	Impact energy (ISO-V) at 20°C
X8Ni9	1.5662	+N+NT (or +QT)	d ≤ 40	490	640 to 840	18	50	70
40 < d ≤ 75	480	640 to 840	18	50	70
+QT	d ≤ 40	585	680 to 820	18	50	120
40 < d ≤ 75	575	680 to 820	18	50	120
a +AT = solution annealed; +C = cold work hardened; +N = normalized; +NT = normalized and tempered; +P = precipitation hardened; +QT = quenched and tempered; +WW = warm worked (see Annex B). b Products made of steel grades and these final heat treatment conditions support the Essential Safety Requirements of Directive 97/23/EC, see Annex 1, 7.5 of this directive. c For rectangular cross-sections "d" will be replaced by "b" (see Figure 1).

Material designation

Heat treatment condition^a

Diameter c

Proof strength

Tensile strength

Elongation after fracture

Reduction in area

Impact energy (ISO-V) at 20°C

Name

Number

d mm

Rp0,2 MPa min.

Rm MPa

A % min.

Z % min.

KV2 J min.

X8Ni9

1.5662

+N+NT (or +QT)

d ≤ 40

490

640 to 840

40 < d ≤ 75

480

640 to 840

+QT

d ≤ 40

585

680 to 820

120

40 < d ≤ 75

575

680 to 820

120

a +AT = solution annealed; +C = cold work hardened; +N = normalized; +NT = normalized and tempered; +P = precipitation hardened;
+QT = quenched and tempered; +WW = warm worked (see Annex B).
b Products made of steel grades and these final heat treatment conditions support the Essential Safety Requirements of Directive 97/23/EC, see Annex 1, 7.5 of this directive.
c For rectangular cross-sections "d" will be replaced by "b" (see Figure 1).

EN 10269 X8Ni9 Impact Energy

Minimum impact energy (longitudinal direction) at low temperature of steels in delivery conditions which support the Essential Safety Requirements of Directive 97/23/EC b

Material designation	Heat treatment condition^a	Diameter e d mm	Minimum impact energy KV2 in J c (ISO-V test piece) at a test temperature in °C of:
X8Ni9	1.5662	+N +NT (or +QT)	d  75	-	40	45	50	50	-	60	-	70	70	70	70	70	70	70	70
+QT	d  75	-	70	-	-	100	-	110	-	120	120	120	120	120	120	120	120
a +AT = solution annealed; +C = cold work hardened; +N = normalized; +NT = normalized and tempered; +P = precipitation hardened; +QT = quenched and tempered; +WW = warm worked (see Annex B). b Products made to these steel grades and these final heat treatment conditions support the Essential Safety Requirements of Directive 97/23/EC; see Annex 1, 7.5 of this directive. c Average of 3 test results. d Steel grade 1.4980 may be ordered for cryogenic purposes with impact values of 50 J at -270 °C, 60 J at -196 °C and 70 J at 20 °C. e For rectangular cross sections "d" will be replaced by "b"

Material designation

Heat treatment condition^a

Diameter e d mm

Minimum impact energy KV2 in J c
(ISO-V test piece) at a test temperature in °C of:

Name

Number

-270

-196

-160

-140

-120

-110

-100

-90

-80

-70

-60

-50

-40

-20

+20

X8Ni9

1.5662

+N +NT (or
+QT)

d  75

+QT

d  75

100

110

120

a +AT = solution annealed; +C = cold work hardened; +N = normalized; +NT = normalized and tempered; +P = precipitation hardened; +QT = quenched and tempered; +WW = warm worked (see Annex B).
b Products made to these steel grades and these final heat treatment conditions support the Essential Safety Requirements of Directive 97/23/EC; see Annex 1, 7.5 of this directive.
c Average of 3 test results.
d Steel grade 1.4980 may be ordered for cryogenic purposes with impact values of 50 J at -270 °C, 60 J at -196 °C and 70 J at 20 °C.
e For rectangular cross sections "d" will be replaced by "b"

Specifications

Surface Treatments

Xylan 1070 / 1014 / 1400 / 1424

Xylar 2 / 101

Geomet 321 / 500 / 720

SermaGard 1105 / 1280

Dacromet 320 / 500

TakeCoat 1000 Ceramic

Delta Tone/Seal

Magnigard

MolyKote

Sherardized

Zinc-Cobalt (ASTM B840)

Zinc-Nickel (ASTM B841)

Certifications

ISO 9001 - 2015 Certified
PED 2014/68/EC
NACE MR0175/ISO 15156-2
NORSOK M-650
DFAR
MERKBLATT AD 2000 W2/W7/W10

EN 10269 Grade X8Ni9 (1.5662) Fasteners

EN 10269 X8Ni9 Chemical composition

EN 10269 X8Ni9 Mechanical properties

Mechanical properties at Room Temperature

Mechanical properties at room temperature and at 20 °C of steels in delivery conditions which support the Essential Safety Requirements of Directive 97/23/EC^b

EN 10269 X8Ni9 Impact Energy

Minimum impact energy (longitudinal direction) at low temperature of steels in delivery conditions which support the Essential Safety Requirements of Directive 97/23/EC b

Specifications

Surface Treatments

Certifications

About Us

Satisfaction Survey

EN 10269 Grade X8Ni9 (1.5662) Fasteners

EN 10269 X8Ni9 Chemical composition

EN 10269 X8Ni9 Mechanical properties

Mechanical properties at Room Temperature

Mechanical properties at room temperature and at 20 °C of steels in delivery conditions which support the Essential Safety Requirements of Directive 97/23/ECb

EN 10269 X8Ni9 Impact Energy

Minimum impact energy (longitudinal direction) at low temperature of steels in delivery conditions which support the Essential Safety Requirements of Directive 97/23/EC b

Specifications

Surface Treatments

Certifications

About Us

Satisfaction Survey

Mechanical properties at room temperature and at 20 °C of steels in delivery conditions which support the Essential Safety Requirements of Directive 97/23/EC^b