Carbon steel grade 20, C22E, 1.1151, C22R, 1.1149, C22, 1.0402, Ck22 according to PN-75/ / H-84019, EN 10083-1.
| Standard | Steel Grade | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition % | ||||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Ni: | Mo: | Cu: | Al: | |
| PN | 20 | |||||||||
| 0.17 - 0.24 | 0.35 - 0.65 | 0.15 - 0.40 | <0.040 | <0.040 | <0.3 | <0.3 | <0.1 | <0.3 | - | |
| EN | C22E - 1.1151 | |||||||||
| 0.17 - 0.24 | 0.4 - 0.7 | <0.4 | <0.030 | <0.035 | <0.4 | <0.4 | <0.1 | - | - | |
| EN | C22R - 3C22 - 1.1149 | |||||||||
| 0.17 - 0.24 | 0.4 - 0.7 | <0.4 | <0.030 | 0.02 - 0.04 | <0.4 | <0.4 | <0.1 | - | - | |
| DIN/EN | C22 - C 22 - 1.0402 | |||||||||
| 0.17 - 0.24 | 0.4 - 0.7 | <0.4 | <0.045 | <0.045 | <0.4 | <0.4 | <0.1 | - | - | |
| GOST | st 20 | |||||||||
| 0.17 - 0.24 | 0.35 - 0.65 | 0.17 - 0.37 | <0.035 | <0.04 | <0.4 | <0.4 | - | <0.3 | - | |
| DIN | Ck22 - Ck 22 | |||||||||
| 0.17 - 0.24 | 0.4 - 0.7 | <0.4 | <0.030 | <0.035 | <0.4 | <0.4 | <0.1 | - | - | |
| AF | XC18 - XC 18 | |||||||||
| 0.16 - 0.22 | 0.4 - 0.7 | 0.10 - 0.25 | <0.035 | <0.035 | - | - | - | - | >0.02 | |
| AF | XC25 - XC 25 | |||||||||
| 0.23 - 0.29 | 0.4 - 0.7 | 0.10 - 0.25 | <0.035 | <0.035 | - | - | - | - | >0.02 | |
Steel st20, C22E, C22R, 1.1151, 1.1149 - specification and application
Grade 20 is a simple structural carbon steel used in the production of low-load machine parts and structures with good weldability, not requiring high strength properties in a heat-treated state.
In the annealed state, the steel is characterized by good machinability, while in the normalized state, the material shows a much better susceptibility to mechanical cutting.
C22E / C22R steel is supplied mainly in the form of round bars, is intended for connecting rods, connectors, shafts, overhead cranes, bolts, pins, bushings, control shafts, axles, keys, rivets, wedges and hubs.
General mechanical properties of C22E, 1.1151, C22R, 1.1149 steel according to EN 10083-2
- Normalized condition +N
- Tensile strength, Rm: >410 MPa
- The yield point, Re: > 210 MPa
- Elongation, A:> 24%
- Heat-treated condition +QT
- Tensile strength, Rm: 470 - 650 MPa
- The yield point, Re: > 290 MPa
- Elongation, A:> 20%
- Contraction, Z: >50%
- Impact resistance, KV: > 50J
Mechanical properties of cold rolled strips C22E, 1.1151, C22R, 1.1149 according to EN 10132-3
- Annealed condition +A+LC
- Tensile strength, Rm: <500 MPa
- The yield point, Re: <400 MPa
- Elongation, A: <22%
- Hardness, HV: < 155
- Hardness, HRB: <78
- Delivery condition +CR
- Tensile strength, Rm: <900 MPa
- Hardness, HV: < 265
Mechanical properties of seamless tubes C22E, 1.1151, C22R, 1.1149 according to EN 10297-1 10297-1
- Normalized condition +N
- Tensile strength, Rm: >410 MPa
- The yield point, Re: > 210 MPa
- Elongation, A:> 22%
- Heat-treated condition +QT
- Tensile strength, Rm: >420 MPa
- The yield point, Re: > 260 MPa
- Elongation, A:> 18%
- Impact resistance, KV: > 27J
- Annealed condition +A
- Hardness, HB: <156
Heat and plastic treatment
- Forging at 1100 - 850 ℃
- Rolling at a temperature of 1180 - 850 ℃
- Softening annealing at a temperature of 650 - 700 ℃
- Normalizing annealing at temperatures of 850 - 920℃
- Hardening at 860 - 900℃ with cooling in water
- Tempering at a tempering of 550 - 660℃
In the above mentioned grades the company provides:
- Hot-rolled bars in the 20, C22E, C22R, 1.1151, 1.1149 grade
- Seamless tubes in the 20, C22E, C22R, 1.1151, 1.1149 grade
- Forgings and forged bars in the 20, C22, 1.0402 grade
- Cold-rolled strips C22E, C22R, 1.1151, 1.1149
- Structural sheets in the 20, C22E, C22R, 1.1151, 1.1149 grade
Other replacements and equivalents of 20 steel:
C22, 1.0402, C 22, C22E, 1.1151, C 22 E, C22R, 1.1149, C 22 R, C25, C 25, 1.0406, C25E, 1.1158, C 25 E, C25R, C 25 R, 1.1163, 2C22, 2 C 22, Ck22, Ck 22, Ck25, Ck 25, CSN 12030, C26D, XC18, XC 18, XC25, XC 25, C20, C 20, C20D2, C20E4, C20M2, steel 20, grade 20, steel grade 20, SM20C, SM22C, 1C22, 1 C 22, 1C25, 1 C 25, C1331, C13311, CS20, CS22, CS17, сталь ст 20.