Model NO.: AISI 420 Standard: ASTM, AISI, GB, JIS, DIN, BS Surface Treatment: Coated Application: Ship Plate, Boiler Plate, Container Plate, Flange Plate Stock: Stock Product Name: Mat.No. 1.4021 DIN X20cr13 AISI 420 Chromium Steel MOQ: 1 Ton Shipping: by Sea, Air Delivery Condition: Ar, N, T, Q, Tmcp, Q+T, Ut, Hic, Z Test Shape: Flat Transport Package: Standard Seaworthy Package or as The Customers′ Re Origin: China Type: Steel Plate
Certification: ISO, SGS, BV, RoHS, IBR Technique: Hot Rolled Special Use: High-strength Steel Plate Key Word: Chromium Steel Plate Certificate: ISO9001:2008 Payment Term: L/C, T/T Delivery Term: Fob, CIF, CFR, Ex-Work, etc. Grade: Mat.No. 1.4021 DIN X20cr13 AISI 420 Trademark: Baosteel Specification: customized sizes Production Description:
1. Steel Grade: Mat.No. 1.4021 DIN X20Cr13 AISI 420
2. Product name: Mat.No. 1.4021 DIN X20Cr13 AISI 420 Chromium Steel Plate
4.Heat Treatment: as required
Steel AISI420 (Mat.No. 1.4021, DIN X20Cr13, AISI 420)
Designation by Standards
|Brand Name ||Ravne No. ||Mat. No. ||DIN ||EN ||AISI |
|AISI420 ||905 ||1.4021 ||X20Cr13 ||X20Cr13 ||420 |
Chemical Composition (in weight %)
|C ||Si ||Mn ||Cr ||Mo ||Ni ||V ||W ||Others |
|0.20 ||max. 1.0 ||max. 1.50 ||13.0 ||- ||- ||- ||- ||- |
This alloy is a general purpose heat treatable chromium steel which is a popular cutlery grade. Martensitic Stainless Steel
Dental and surgical instruments, cutlery, pump shafts, plastic molds and dies, steel balls, and various hand tools, pump components, shafts, turbine blades, pressing dies for tablets, glass and plastics processing tools.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 216
Density [g/cm3]: 7.73
Thermal conductivity [W/m.K]: 30.0
Electric resistivity [Ohm mm2/m]: 0.60
Specific heat capacity[J/g.K]: 0.46
Coefficient of Linear Thermal Expansion 10-6 oC-1
| 20-100oC || 20-200oC || 20-300oC || 20-400oC || 20-500oC |
|10.5 ||11.0 ||11.5 ||12.0 ||12.0 |
Modulus of Elasticity [103 N/mm2]
| 20oC || 200oC || 400oC |
|216 ||205 ||190 |
Continuous Cooling Transformation (CCT) Diagram
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Heat to 730-810oC, air cooling. Structure is ferrite with spherical carbides.
Harden from a temperature of 950-1050oC followed by oil, air quenching.
Tempering temperature: 650-750oC. Transformation structure with ferrite.
Mechanical Properties at Room Temperature
|Size range mm ||Heat treatment condition || 0.2 % proof stress (N/mm2) || Tensile strength (N/mm2) ||Elongation (%) ||Notch impact energy (ISO-V) (J) ||Hardness HB max. |
|d<=160 ||Q+T 700 ||500 ||700-850 ||13 ||25 ||230 |
|d<=160 ||Q+T 800 ||600 ||800-950 ||12 ||20 ||230 |
0.2 % Proof Stress (N/mm2) at Elevated Temperatures
|Condition || 100oC || 150oC || 200oC || 250oC || 300oC || 350oC || 400oC |
|Q+T 700 ||460 ||445 ||430 ||415 ||395 ||365 ||330 |
|Q+T 800 ||515 ||495 ||475 ||460 ||440 ||405 ||355 |
Diagram Tempering Temperature - Mechanical Properties
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Hot forming temperature: 1100-850oC.
Similar to machining some of the high carbon tool steel, this alloy has tough, stringy chip build-up.
Embittlemnt: It must be in mind that the temperature range between 425 and 525oC must be avoided owing to embritllement at 475oC.
420 is resistant to the atmosphere, fresh water, dilute acids and alkalis and fruit and vegetable juices.
Not commonly welded due to its air hardening characteristics. Welding may be performed after preheating to 149-204oC with post weld tempering at temperature for 2 hours. Filler metal should be AWS E/ER420.
Bozhong Group Mainly supply in forms of coil, sheet, plate, rod, bar, tube, pipe, beam, angle, flange, wire, strip, channel, etc., with various varieties, wide range of dimensions, high purity, stable chemical composition, high dimensional accuracy and excellent surface quality. The products are mainly used in the fields of industries such as automobile engineering, railway transportation, aviation, aerospace, machinery, petrochemical, energy, environmental protection, offshore, chemical, oil & gas, ilitary, power plant, nuclear power, pressure vessel, boiler equipment, mold manufacture, etc.
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Bozhong Group can supply a variety of structural steel, high-strength steel, wear-resistant steel plate, boiler and pressure vessel steel, marine engineering and stainless steel plate in the thick steel and various European standard bars and pipes and profiles.Our global sales and service network throughout all around the world to ensure that the goods reach the customer in the shortest time.
We can follow your drawings and requirements, to provide you with oxygen cutting, plasma cutting and laser cutting and other processing services. You can also perform ultrasonic testing in accordance with EN10160 standard, EN10164 standard test Z15, Z25, Z35, weld bending detection, PWHT detection,etc.
We have ISO9001: 2000 quality management system certification, and obtain the quality certification from all the well-known certification company, including TuV / LRS / GL / CE and so on.
Special steel includes as below:
Boiler and pressure vessel steel
Nuclear power steel
High strength steel
Abrasion resistant steel
Weathering, corrosion resistant and fire resistant steel
High rise building steel
Shipbuilding and offshore engineering steel
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