AISI 420 QT Cold Drawn Stainless Steel Bars And Rods For Pump
Shafts Application
AISI 420 QT Steel Bar is used in the hardened and tempered
condition. It is used extensively on completion equipment,for
structural and pressure containing members, in standard and CO2
environments. pH, chlorides, temperature and H2S can limit its use
in other environments.
Size range: 2”∅ - 24”∅
Chemical composition:
| C | Si | Mn | P | S | Cr |
| Min | 0.15 | - | 0.25 | - | - | 12.0 |
| Max | 0.22 | 1.00 | 1.00 | 0.020 | 0.010 | 14.0 |
| Standard | Steel Grade |
|---|
| Chemical Composition % |
|---|
| C: | Mn: | Si: | P: | S: | Cr: | Ni: | Cu: |
|---|
| PN | 2H13 |
| 0.16 - 0.25 | <0.8 | <0.8 | <0.04 | <0.03 | 12.0 - 14.0 | <0.6 | <0.3 |
| EN | X20Cr13 - 1.4021 |
| 0.16 - 0.25 | <1.5 | <1.0 | <0.04 | <0.03 | 12.0 - 14.0 | - | - |
| AF | Z20C13 |
| 0.18 - 0.23 | <1.0 | <1.0 | <0.04 | 0.015 - 0.030 | 12.0 - 14.0 | - | - |
| ASTM | AISI 420 - UNS S42000 |
| >0.15 | <1.0 | <1.0 | <0.04 | <0.03 | 12.0 - 14.0 | - | - |
| PN | 2H14 |
| 0.16 - 0.25 | <0.8 | <0.8 | <0.04 | <0.03 | >13.0 | <0.6 | - |
| BS | 420S29 - 420 S 29 |
| 0.14 - 0.20 | <1.0 | <0.8 | <0.04 | <0.03 | 11.5 - 13.5 | <1.0 | - |
| GOST | 20Х13 |
| 0.16 - 0.25 | <0.8 | <0.8 | <0.03 | <0.025 | 12.0 - 14.0 | <0.6 | <0.3 |
Mechanical properties:
- Condition: Hardened and Double Tempered
- NACE MR0175 limits the supply hardness to 22 HRC max.
- U.T.S: 100 KSI Min (689 N/mm2)
- 0.2% Proof Stress: 80 KSI Min (551 N/mm2)
- Elongation: 20 %
- Reduction of Area: 40 %
- CVN Impacts @ -10°C : 20 Joules (15 ft-lbf)
X20Cr13, 1.4021, AISI 420 - specification and application
Martensitic stainless steel intended for thermal improvement,
showing high mechanical properties - strength, ductility and
machinability, while maintaining sufficient corrosion resistance.
2H13 does not show resistance to chlorine, salts and intergranular
corrosion. X20Cr13 is a suitable grade for work in steam
environments, in low concentrations of inorganic acids, diluents,
clean water and steam at a suitably treated surface.
Steel X20Cr13 and 2H13 can also be classified as a heat-resistant
grade up to 825 degrees. Shows resistance to gases containing
sulphur compounds and a hot steam. Stable and appropriately high
mechanical properties are maintained in the operating temperature
range 475 - 500. Above the early-mentioned temperature, the creep
limit is negligible, only the time resistance is relatively high.
The grade is used for the production of bolts at elevated
temperatures, turbine blades, knives, decoration, surgical
instruments, bushings, valve seats, scrapers, blades, ramparts,
checks, springs, machine parts, moulds for casting under pressure,
and the pins exposed to light loads in the automotive,
petrochemical, industrial hydraulics and energy industries.
CONTACT:MS.ANNDY
EMAIL:ANNDY(AT)SHUNITESTEEL.COM
