AISI 420 High-Carbon steel Din X20Cr13 W-Nr. 1.4021 JIS SUS420JI Sheet Plate

AISI 420 High-Carbon steel is a high-carbon steel with a minimum chromium content of 12%. Like any other stainless steel, AISI 420 can also be hardened through heat treatment. It offers good ductility in its annealed state and excellent corrosion resistance properties when the metal is polished, surface grounded or hardened. This grade has the highest hardness – 50HRC – among all the stainless steel grades with 12% chromium.

Supply Form of AISI 420 High-Carbon steel Din X20Cr13 W-Nr. 1.4021 JIS SUS420JI

Supply Range of AISI 420 High-Carbon steel Din X20Cr13

AISI 420 High-Carbon steel Round Bar: diameter 10mm – 400mm

AISI 420 High-Carbon steel Plate: thickness 10 –500mm x width 200– 1400mm

AISI 420 High-Carbon steel Block: 210mm x 500-810mm

Chemical Composition of AISI 420 DIN X20Cr13 Material

ASTM A681 C Si Mn P S Cr Mo Ni Cu Co
1045/ G10450  0.42 ~ 0.50 0.17～0.37 0.50～0.80 0.030 Max 0.030 Max ≤0.25 0.01 ≤0.3 ≤0.25 /
DIN 17350 C Si Mn P S Cr Mo Ni Cu Co
1.1191/CK45 0.42 ~ 0.50 ≤0.4 0.50～0.80 0.035 Max 0.030 Max ≤0.25 0.02 ≤0.3 ≤0.25 /
GB/T 1299 C Si Mn P S Cr Mo Ni Cu Co
45 0.42 ~ 0.50 0.20～0.45 0.50～0.80 0.030 Max 0.030 Max ≤0.25 0.01 ≤0.3 ≤0.25 /
JIS G4403 C Si Mn P S Cr Mo Ni Cu Co
S45C 0.42 ~ 0.48 0.15~0.35 0.60～0.90 0.030 Max 0.035 Max ≤0.2 0.02 ≤0.2 ≤0.3 /

AISI1045 (CK45)  Material Equivalent and Related Speciations

USA German Japan China ISO
ASTM A681 DIN 17350 JIS G4403 GB/T 1299 ISO 4957
1045 CK45 S45C 45 C45E4

AISI1045 (CK45)  Material Mechanical Properties

Hardness, Rockwell C (Water quenched on 820-870°C, 5 minutes): 201~269HB .

Hardness, Rockwell C (Water quenched on 820-870°C, 5 minutes): 201~269HB .

Hardness, Rockwell C(Water quenched on 820-870°C, 5 minutes): 201~269HB .

Forged of AISI1045 (CK45)  metal material

At first, Pre-Heating to 552℃，Then heat to forged temperature. Next, Soak at 820-870 °C , ensure heat thorough. Then start forged, the forged temperature no low than 560℃. After forging, cool slowly .

Heat Treatment of AISI 1045 (CK45)

  •  AISI1045 (CK45) Annealing

Full annealing of small C1045 forgings is carried out from 1450-1600ºF (790-870ºC)
followed by furnace cooling at 50ºF (28ºC) per hour, to 1200ºF (650ºC) soaking and air cooling.

  • AISI 1045 (CK45)  Hardening

Hardening of this grade is carried out from an austenitizing temperature of 1475-1550ºF (800-845ºC) and oil or water quenching.

Flame and induction hardening may be carried out by heating quickly to the desired case depth and quenching in water or oil. This should be followed by a tempering treatment at 300-400ºF (150-200ºC) to reduce stresses in the case without affecting its hardness. A surface hardness of Rc 58 may be obtained by this treatment.

  • Quenching of AISI 1045 (CK45)  material

Quenching temperature / ℃ | salt bath furnace: 870

Quenching temperature / ℃ | controlled atmosphere furnace: 870

The heat preservation time/min: 5 ~ 15

Quenching medium: Water cooling

  • Tempering Of AISI1045 (CK45) 

Tempering temperature / ℃ : 552

After tempering hardness HRC or higher: 201-269HB .

Application of AISI 1045 (CK45) 

Suitable for manufacturing various strong cutting tools with wear-resistant, resistant to impact. Advanced punching die, screw die, the toughness and complicated shape of the punch, etc. Roll cutting tool industry: scraper, serrated knife, iron knives, drill bits, etc.

Forging industry: forging die.

Screw industry: heading forming mould, such as teeth, punch

Quality Assured of AISI 1045 (CK45) 

Quality assured by ISO 9001:2008 quality management system. Whatsmore, Our all AISI1045 (CK45) all had by SEP 1921-84 ultrasonic inspection (UT Test). Quality Grade: E/e, D/d, C/c.

If you have any AISI1045 (CK45)  inquiry and question for Price, Application, hot treatment, Please don’t hesitate to contact us.

Email: Jack@otaisteel.com

Tel:  +86-769- 33232622

Fax:  +86-769-88705839

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