We have successfully received your contact request!

We will try to get back to you as soon as possible.

Okey
  1. Homepage
  2. Products
  3. Stainless Steels Martensitic
  4. X20Cr13 - Nr.1.4021
Products

X20Cr13 - Nr.1.4021

Widely used quenched and tempered steel, with mechanical characteristics superior to those of the 410 base type at the quenched and tempered state.

References And Comparable Standards

Standard Reference: EN 10088-3: 2014 (Hot-rolled and bright products)
EUROPE ITALY GERMANY FRANCE UK USA

EN 10088-3: 2005

(UNI 6900: 71)

 

(NF A 35-574-90)

(BS 970 pt. 3 -91)

 AISI
Grade N°   Werkstoff N°      
X20Cr13 1.4021 X20Cr13 X20Cr13 1.4021 Z20C13 420S29 - 420S37 420

Chemical Composition (Cast Analysis) (%)

C Si / max Mn / max P / max S  /max Cr
0,16÷0,25 1,00 1,50 0,040 0,030 12,0÷14,0

Mechanical Properties – Rough turned (1X) in the annealed condition

Size (mm) Heat treatment Hardness HB max* Rp 0,2 (MPa) min Rm (MPa) A5 (%) min KV (J) min
d≤100 Annealed (+A) 230 - 760 max - -
Quenched + Tempered (+QT 700) - 500 700÷850 13 25
Quenched + Tempered (+QT 800) - 600 800÷950 12 20

* only for guidance

Mechanical Properties –  Cold drawn (2H, 2B) and ground bars (2G) in the solution annealed condition

Size (mm) Annealed Quenched + Tempered
Rm (MPa) max HB max* Heat treatment Rp 0,2 (MPa) min Rm (MPa) max A5 (%) min** KV (J) min
d≤10 910 290 Quenched + Tempered
(+QT 700)		 600 750÷1000 8 -
10<d≤16 910 290 550 750÷1000 8 -
16<d≤40 850 260 500 700÷950 10 25
40<d≤63 800 250 500 700÷900 12 25
63<d≤100 760 230 500 700÷850 13 25

* for reference only
** values valid only for size ≥5 mm

Mechanical Properties – Cold drawn wire and coils (2H)

Tensile strength levels Rm (MPa)
+C 500 500÷700
+C 650 650÷850
+C 800 800÷1000
+C 900 900÷1100

Note: the desired tensile strength level shall be evaluated depending on diameter required

Mechanical Properties – Cold drawn wire and coils in the solution annealed condition (2D)

Size A (%) max Rm (MPa) max
0,50≤d≤1,00 10 1100
1,00≤d≤3,00 10 1050
3,00≤d≤5,00 10 1000
5,00≤d≤16,00 15 950

Note: If skin passed, Rm might be increased by up to 50 MPa

Working Temperatures Recommended

Operation °C
Hot forgings deformation 900÷1100
Annealing (air) 745÷825
Quenching in air or oil 950÷1000
Tempering (QT 700)  600÷750
Tempering (QT 800) 600÷700

Tempering Curve

Relevant Products
X12Cr13 - Nr.1.4006
X12Cr13 - Nr.1.4006

410
X12CrS13 - Nr.1.4005
X12CrS13 - Nr.1.4005

416
X30Cr13 - Nr.1.4028
X30Cr13 - Nr.1.4028

420B
X39Cr13 - Nr.1.4031
X39Cr13 - Nr.1.4031

420C
X46Cr13 - Nr.1.4034
X46Cr13 - Nr.1.4034

420C1
X14CrMoS17 - Nr.1.4104
X14CrMoS17 - Nr.1.4104

430F
X39CrMo17-1 - Nr.1.4122
X39CrMo17-1 - Nr.1.4122

1.4122
X17CrNi16-2 Nr.1.4057
X17CrNi16-2 Nr.1.4057

431
X7CrNiAI17-7 - Nr.1.4568
X7CrNiAI17-7 - Nr.1.4568

631M
X46CrS13 - Nr.1.4035
X46CrS13 - Nr.1.4035

X46CRS13