1. Cov khoom sib xyaw & cov khoom tseem ceeb
Q:Dab tsi txhais cov tshuaj lom neeg / tshuab hluav taws xob ntawm C22E?
A:
Chemical (wt%):
C: 0.17–0.24 | Mn: 0.40–0.70 | P:Tsawg dua lossis sib npaug rau 0.025 |S:Tsawg dua lossis sib npaug rau 0.025 |Si:Tsawg dua los yog sib npaug li 0.40.
Mechanical:
Yield zog (sᵧ):Ntau dua lossis sib npaug rau 275 MPa |Tensile (sₜ):410-560 MPa.
Elongation (A₅):Ntau dua lossis sib npaug li 22% |Hardness:Tsawg dua lossis sib npaug li 160 HB.
Nco tseg:C22E yog atsis yog- alloy carbon steelnrog zoo machinability thiab weldability (Ceq Tsawg dua los yog sib npaug rau 0.38).
2. Kev tsim khoom & qauv ua raws
Q:C22E cov raj tsim thiab ntawv pov thawj li cas?
A:
Txheej txheem:Seamless (kub-rolled/cold-draw) los yog welded (ERW/SAW).
Kev kho cua sov:Normalized (EN 10297-1 §6.2) lossis raws li dov.
Standard Scope:TS EN 10297-1 Kev siv tshuab / cov qauv siv dav dav
3. Dimensional Tolerances
Q:Dab tsi kam rau ua rau C22E raj?
A:
| Parameter | Ua siab ntev |
|---|---|
| OD (D) | ± 1.0% (min ± 0.5 hli) |
| Phab ntsa Thickness | ± 10% (min ± 0.3 hli) |
| Kev ncaj | Tsawg dua los yog sib npaug li 1.5 mm / m |
4. Daim Ntawv Thov & Kev Txwv
Q:C22E feem ntau siv qhov twg?
A:
General Engineering:Hydraulic thooj voos kheej kheej, conveyor rollers.
Automotive:Chassis Cheebtsam, tso pa tawm (txias-kos).
Zam:
Temperatures >350℃(kev pheej hmoo ntawm scaling).
Corrosive ib puag ncig yam tsis muaj coatings.
5. Kev lees paub zoo & ntawv pov thawj
Q:Yuav ua li cas thiaj paub tseeb?
A:
Kev xeem:Tensile (EN ISO 6892-1), hardness (EN ISO 6506-1).
Cov ntawv pov thawj:EN 10204 3.1/3.2|PED 2014/68/EU (Qeb II).
