Plate ea motsoako oa phepelo ea fektheri e hloekileng haholo
| Letšoao | C | Si | Mn | P | S | V | Nb | Al | Ti |
| Q345A | ≤0.20 | ≤0.55 | 1.00-1.60 | ≤0.045 | ≤0.045 | 0.02-0.15 | 0.015-0.060 | 0.02-0.20 | |
| Q345B | ≤0.20 | ≤0.55 | 1.00-1.60 | ≤0.040 | ≤0.040 | 0.02-0.15 | 0.015-0.060 | 0.02-0.20 | |
| Q345C | ≤0.20 | ≤0.55 | 1.00-1.60 | ≤0.035 | ≤0.035 | 0.02-0.15 | 0.015-0.060 | ≥0.015 | 0.02-0.20 |
| Q345D | ≤0.18 | ≤0.55 | 1.00-1.60 | ≤0.030 | ≤0.030 | 0.02-0.15 | 0.015-0.060 | ≥0.015 | 0.02-0.20 |
| Letšoao | Thepa ea mechini | ||||
| 12Mn2A | Botenya ba ≤ poleiti ea tšepe ea 4mm | Botenya > poleiti ea tšepe ea 4mm | Brinell thata HBW Ha e kholo ho feta | ||
| Matla a ho tenyetseha Rm N/m ㎡ | Ho lelefatsa kamora khefu A11.3% E seng ka tlase ho | Matla a ho tenyetseha Rm N/m ㎡ | Ho lelefatsa kamora khefu A11.3% E seng ka tlase ho | ||
| 12Mn2A | 390-570 | 22 | 390-570 | 23 | ---- |
| 45Mn2A | 590-835 | 12 | 590-835 | 13 | - - |
| 20CrA | 390-590 | 18 | 390-590 | 20 | |
| 38CrA | 540-735 | 16 | 540-735 | 18 | ---- |
| 40CrA | 540-735 | 14 | 540-730 | 16 | -- |
| 20CrMnSiA | 490-685 | 18 | 490-685 | 21 | -- |
| 25CrMnSiA | 570-720 | 18 | 570-720 | 20 | 229 |
| 30CrMnSiA | 540-735 | 16 | 540-735 | 19 | 229 |
| 35CrMnSiA | 590-785 | 14 | 590-785 | 16 | - |
| 18CrMn2MoBA | 440-640 | 20 | 440-640 | 22 | 217 |
| 30CrSiMoVA | QQ709023242 | - | - | - | 217 |
Ho ya ka tshebediso ya profeshenale, ho na le dipoleiti tsa meropa ya oli, dipoleiti tsa enamel, dipoleiti tse sa keneleng likulo, jj.; ho ya ka lera la ho kwahela bokahodimo, ho na le dipoleiti tse tshesane tse nang le galvanized, dipoleiti tse tshesane tse manehilweng ka thini, dipoleiti tse tshesane tse manehilweng ka loto, dipoleiti tsa polasetiki tse kopaneng tsa tshepe, jj.
1.Tlhophiso ka botenya: (1) poleiti e tšesaane; (2) poleiti e mahareng; (3) poleiti e teteaneng; (4) poleiti e teteaneng haholo.
2.Tlhophiso ka mokhoa oa tlhahiso: (1) lakane ea tšepe e phuthoang ka mocheso; (2) lakane ea tšepe e phuthoang ka serame.
3.Tlhophiso ho ya ka dibopeho tsa bokahodimo: (1) lakane ya galvanized (lakane ya galvanized e tjhesang, lakane ya galvanized ya electro); (2) lakane e manehilweng ka thini; (3) lakane ya tshepe e kopaneng; (4) lakane ya tshepe e manehilweng ka mebala.
4.Tlhophiso ka tshebediso: (1) Poleiti ea tšepe ea borokho; (2) Poleiti ea tšepe ea boiler; (3) Poleiti ea tšepe ea kaho ea likepe; (4) Poleiti ea tšepe ea lihlomo; (5) Poleiti ea tšepe ea koloi; (6) Poleiti ea tšepe ea marulelo; (7) Poleiti ea tšepe ea sebopeho; (8) Poleiti ea tšepe ea motlakase (lesela la tšepe la silicon); (9) Poleiti ea tšepe ea selemo; (10) Mefuta e meng e tloaelehileng ea lipoleiti tsa tšepe tsa Japane bakeng sa meaho e akaretsang le ea mechini.
