STEEL X20Cr13 Page 1 of 4

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Steel X20Cr13

Comparison of steel grades

JUS

X20Cr13 DIN
BS

EN 10250-4:1999, Number: 1.4021 GOST

AISI
EN 1088-1; 10088-2; EN 10088-3; EN 10263-5; EN 10272 i EN NF
10297-2

Chemical analysis -% by mass (Hemijska analiza)*

Hemijski Mn P
element Si S Cr -
C
max. max.
max. max.
% mase 0,16-0,25 1,00 1,50 0,040 0,030 * 12,00-14,00 -
Dozvoljeno
± 0,01 + 0,05 + 0,04 + 0,005 + 0,005 ± 0,15 -
odstupanje

*For products to be machined a controlled sulfur content of 0,015 to 0,030% is recommended.

Za sve proizvode namijenjene za mehaničku obradu preporučuje se i dozoljava sadržaj sumpora od 0,015 do 0,030%.

Mechanical properties at room temperature

Proof stress Tensile Notch impact energy

Heat strenght Elongation after fractura
Size range Hardness
treatment (ISO – V)
Rρ0.2 min.
Rm A min., in %
mm HB max.
condition* KV min. in J
N/mm2 N/mm2 Longit. Transv. Longit. Transv.
A Max. 760 - - - - 230
d ≤ 160 QT 700 500 700 to 850 13 - 25 - -
d ≤ 160 QT 800 600 800 to 950 12 - 20 - -

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Rρ0.2 min. in N/mm2at elevated temperatures in quenched and tempered condition

Condition 100°°C 150°°C 200°°C 250°°C 300°°C 350°°C 400°°C

QT 700 460 445 430 415 395 365 330
QT 800 515 495 475 460 440 405 355

*A – annealed; QT – quenched and tempered

Mechanical properties in the normalized and normalized and tempered conditions

Thickness of ruling section tR

Diameter in mm tR ≤ 100mm 100< tR ≤250mm 250< tR ≤500mm 500< tR ≤1000mm
Re min (N/mm2) 215 175 165 -
Rm min (N/mm2) 340 340 340 -
l-longitudinal 24 23 23 -
A % min.
tr - transverse - 17 17 -
KV min * l-longitudinal 35 30 27 -
(J) tr - transverse - 20 15 -

1N/mm2=1MPa
* Impact testing shall be carried out at -200C.

Heat treatment conditions (Temperature termičke obrade)

Quenching Cooling medium

Tempering Normalizing
temperature, 0C
Temperature, 0C (hlađenje u)
Temperature, 0C
(Temperatura otpuštanja) (Temperatura normalizacije)
(Temperatura kaljenja )
- - - 890 to 950

X20Cr13
Mill test Certificate as per EN 10204 3.1.B

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STEEL X20Cr13 Page 3 of 4

1 Material No,

Steel EN
DIN AISI/SAE BS AFNOR JIS JUS GOST CSN UNE
Code 10088
1.4021 X20Cr13 X20Cr13 420 420S37 Z20C13 SUS420J1 Č.4172 20Ch13 17022 F.3402

2 Chemical composition (cast analysis)* elements

C Si max Mn max P max S Cr

0,16 to 0,25 1,00 1,50 0,040 ≤0,030** 12,00 to 14,00
Permissible tolerance % by mass
± 0,01 + 0,05 ± 0,03 ± 0,005 + 0,005 ± 0,15

*Elements not quoted 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 a addition of such elements from scrap and other materials used in production which would
impair mechanical properties and the suftabillitz of the steel.

** For product to be machined a controlled sulfur content of 0,015 to 0,030 % is recommended.

Mechanical properties
3
At room temperature

Proof stress Tensile Notch impact energy

Heat strenght Elongation after fractura
Size range Hardness
treatment (ISO – V)
Rρ0.2 min.
Rm A min., in %
mm HB max.
condition* KV min. in J
N/mm2 N/mm2 Longit. Transv. Longit. Transv.
A Max. 760 - - - - 230
d ≤ 160 QT 700 500 700 to 850 13 - 25 - -
d ≤ 160 QT 800 600 800 to 950 12 - 20 - -

Rρ0.2 min. in N/mm2at elevated temperatures in quenched and tempered condition

Condition 100°°C 150°°C 200°°C 250°°C 300°°C 350°°C 400°°C

QT 700 460 445 430 415 395 365 330
QT 800 515 495 475 460 440 405 355

*A – annealed; QT – quenched and tempered

4 Hot forming and Heat treatment, structure

Hot forming Heat treatment, structure

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°C Cooling Annealing A Quenching QT Tempering QT

°C Cooling Structure °C Cooling °C Structure
QT 700

650 to Transformation
1100 to Slow Ferrite with 750
745 to 950 to
800 cooling 825
Air spherical
1050
Oil, air
Qt 800
carbides structure with
ferrite
600 to
700

5 Phusical properties

Mean coeff. of thermal Thermal Specific Resistivity

Modulus of elasticity conductivity heat
Density
Expansion 10-6K-1
at 20°C Magnetisable
kN/mm2 at at 20°C at 20°C
kg/dm3
Between 20°C and
W/mK J/kgK Ω mm2/m
20°C 200°C 400°C 100°C 200°C 400°C
7,7 215 205 190 10,5 11,0 12,0 30 460 0,60 Yes

Mikroskopsko određivanje veličine zrna

Veličina zrna se ugovara. Kao referentni standardi se koriste JUS C.A3.004:1995, ISO 643:1983, EURONORM 103 i ASTM E-112 (PRILOG 9)

Nematalni uključci

Nematalni uključci se posebno ugovaraju. Kao standard za ugovaranje istih koristiti JUS C.A3.013, ASTM - E45, DIN 50602, NF A 04-106 koji je identičan
sa
ISO 4967-1979 i standarda SS 11 11 16 (PRILOG 10)

Ispitivanje metodama bez razaranja

Ispitivanje metodama bez razaranja se posebno ugovara. Kao referentni standardi se koriste SEP 1921, EN 583-1:1998, EN 10228-3 (PRILOG 11)

Related products: X5CrNi18-10 | X17CrNi18-2 | X20Cr13 |

Zeljezara Niksic has more than fifty year long tradition as a manufacturer of high quality carbon, non alloy and
alloy steel grades. It is an Electric Arc Furnace steelmaker with significant downstream processing options. It has
been one of the leading European steel and special steel producers. Its products meet the following standards EN
10027-1, En 10027-2, DIN, JUS, AISI, BS, AFNOR, GOST, UNI. They are exported to most European
countries and worldwide.

Zeljezara Niksic - Niksic, Montenegro

Phone: (+382) 20 234-616, (+382) 40 202 900 | Fax: (+382) 40 202-023
| Website: www.znksteel.com

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