Stainless martensitic corrosion resistant steel X30Cr13, 1.4028, AISI 420F, S42020 according to EN 10088-1.
| Standard | Steel Grade | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition (%) | |||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Ni: | Mo: | Cu: | |
| PN | 3H13 | ||||||||
| 0.26 - 0.35 | <0.8 | <0.8 | <0.04 | <0.03 | 12.0 - 14.0 | <0.6 | - | <0.3 | |
| EN | X30Cr13 - X 30 Cr 13 - 1.4028 | ||||||||
| 0.26 - 0.35 | <1.5 | <1.0 | <0.04 | <0.03 | 12.0 - 14.0 | - | - | - | |
| EN | X29CrS13 - X 29 CrS 13 - 1.4029 | ||||||||
| 0.25 - 0.32 | <1.5 | <1.0 | <0.04 | 0.015 - 0.025 | 12.0 - 13.5 | - | <0.6 | - | |
| AFNOR | Z33C13 - Z 33 C 13 | ||||||||
| 0.28 - 0.38 | <1.0 | <1.0 | <0.04 | 0.015 - 0.030 | 12.0 - 14.0 | - | - | - | |
| PN | 3H14 | ||||||||
| 0.26 - 0.35 | <0.8 | <0.8 | <0.04 | <0.03 | >14.0 | <0.6 | - | - | |
| BS | 420S45 - 420 S 45 | ||||||||
| 0.28 - 0.36 | <1.0 | <1.0 | <0.04 | <0.03 | 12.0 - 14.0 | <1.0 | - | - | |
| GOST | 30Ch13 - 30Kh13 - 30Х13 | ||||||||
| 0.26 - 0.35 | <0.8 | <0.8 | <0.03 | <0.025 | 12.0 - 14.0 | <0.6 | - | <0.3 | |
X30Cr13, 1.4028 - specification and application
3H13 is a martensitic chromium grade group of stainless steels designed for hardening and tempering. Steel is on the list of related counterparts - 0H13, 1H13, 2H13 and 4H13 - groups of materials without nickel, containing an average of 13% of chromium, which is mainly distinguished by the carbon content in the chemical composition and thus the higher endurance properties.
The differences have a significant effect on the ability to obtain individual hardness compartments and on the level of corrosion resistance, where 3H13/X30Cr13 is a balanced choice between 2H13 and 4H13.
This grade of steel is mainly used for the manufacture of shafts, glands, drops, valves, bolts, springs, piston rods, machine parts, molds for pressurized castings, knives and tools used in the food and household industries in the form of rods, wires or cold rolled metal plates where the nedded hardness is 45-51 HRC.
Steel exhibits relatively low corrosion resistance - it can work in a room environment, in contact with a larger group of products and food intermediates, and some of carbonates, acetates, and hydroxides.
General mechanical properties of X30Cr13, 1.4028 in heat-treated state +QT:
- Tensile strength, Rm: 800 - 1000 MPa
- Yield point, Re: >600 MPa
- Elongation, A: >10%
- HRC Hardness: 45-51
- HV Hardness: 450 - 550
- Tharmal capacity, cp20℃: 460 J * kg-1 * K-1
- Thermal conductivity coefficient, λ: 30 W * m-1 * K-1
- Modulus of elasticity, E: 215 GPa
- Linear Expansion Factor, α: 10,5 * 10-6 K-1
General mechanical properties in annealed condition A:
- HB Hardness: <235 HB
- HV Hardness: <235 HB
- HRB Hardness: <97 HB
- Yield point, Re: <740 MPa
- Elongation, A: > 15%
- Density: 7,72 g / cm3
Mechanical properties of smooth bars, drawn wires, cold rolled strips:
Mechanical properties of products +1C, +1E, +1D, +1X, +1G, +2D in +A condition
- HBW Hardness: <245
- Tensile strength, Rm: <800 MPa
Mechanical properties of smooth bars +2H, +2B, +2G, +2P in +A condition
- Dimensions <16mm
- Tensile strength, Rm: <950 MPa
- HB Hardness: <305 HB
- Dimensions 16-40mm
- Tensile strength, Rm: <900 MPa
- HB Hardness: <280 HB
- Dimensions 40-63mm
- Tensile strength, Rm: <840 MPa
- HB Hardness: <260 HB
- Dimensions 63-160mm
- Tensile strength, Rm: <840 MPa
- HB Hardness: <260 HB
Mechanical properties of +2D wires in +A condition
- Dimensions 0.5 - 1.0mm
- Tensile strength, Rm: <1100 MPa
- Elongation, A: >10%
- Dimensions 1.0 - 3.0mm
- Tensile strength, Rm: <1050 MPa
- Elongation, A: >10%
- Dimensions 3.0 - 5.0mm
- Tensile strength, Rm: <1000 MPa
- Elongation, A: >10%
- Dimensions >5mm
- Tensile strength, Rm: <950 MPa
- Elongation, A: > 15%
Mechanical properties of products +1C, +1E, +1D, +1X, +1G, +2D in +QT850 condition
- Tensile strength, Rm: 850 - 1000 MPa
- Yield point, Re: >650 MPa
- Elongation, A: >10%
- Impact resistance, KV20℃: >12J
Mechanical properties of smooth bars +2H, +2B, +2G, +2P in +QT850 condition
- Dimensions <10mm
- Tensile strength, Rm: 900 - 1050 MPa
- Yield point, Re: >700 MPa
- Dimensions 10-16mm
- Tensile strength, Rm: 900 - 1150 MPa
- Yield point, Re: >650 MPa
- Dimensions 16-40mm
- Tensile strength, Rm: 850 - 1100 MPa
- Yield point, Re: >650 MPa
- Dimensions 40-63mm
- Tensile strength, Rm: 850 - 1050 MPa
- Yield point, Re: >650 MPa
- Dimensions 63-160mm
- Tensile strength, Rm: 850 - 1000 MPa
- Yield point, Re: >650 MPa
Mechanical properties of +2H wires in +QT850 condition with dimensions > 0.05mm
- Condition +C500 - Rm: 500 - 700 MPa
- Condition +C600 - Rm: 600 - 800 MPa
- Condition +C700 - Rm: 700 - 900 MPa
- Condition +C800 - Rm: 800 - 1000 MPa
- Condition +C900 - Rm: 900 - 1100 MPa
- Condition +C1000 - Rm: 1000 - 1250 MPa
- Condition +C1100 - Rm: 1100 - 1350 MPa
- Condition +C1200 - Rm: 1200 - 1450 MPa
- Condition +C1400 - Rm: 1400 - 1700 MPa
- Condition +C1600 - Rm: 1600 - 1900 MPa
- Condition +C1800 - Rm: 1800 - 2100 MPa
Mechanical properties of coldrolled stripes according to EN 10151:
- Condition +C700 - Rm: 700 - 850 MPa
- Condition +C850 - Rm: 850 - 1000 MPa
- Condition +A - Rm: 540 - 740 MPa
- Modulus of elasticity in delivery,E= 210 GPa
- Modulus of elasticity after cold rolling and heat treatment, E= 220 GPa
Mechanical properties at elevated temperatures
| Properties | Temperatures | ||||
|---|---|---|---|---|---|
| 100℃ | 200℃ | 300℃ | 400℃ | ||
| Linear Expansion Factor, α | * 10-6 K-1 | 10.5 | 11.0 | 11.5 | 12.0 |
| Modulus of elasticity, E | GPa | 212 | 205 | 200 | 190 |
Temperatures of heat and plastic treatment processes:
- Hardening at 950 - 1050℃ with oil or air cooling
- Tempering at 625 - 675℃
- Softening annealing at 745 - 825 ℃ with air cooling
- Rolling and forging at 1100 - 800 ℃
In the above mentioned grades the company provides:
Other signs and equivalents:
SUS 420J2, 3Cr13, 1.4028, X30Cr13, X29CrS13, 1.4029, 30Cr13, X33Cr13, Z33C13, Z30C13, CSN 17023, 3Ch13, 30Cr130, 420S45, 420 S 45, 3H14, UNS S42080, 30Ch13, 30Kh13, 30Х13, AISI 420B