1. Cov duab sib txawv: sab nrauv ntawm cov hlau puag ncig yog du; sab nrauv ntawm rebar muaj kauv ribs.
2. Cov qauv tsim khoom sib txawv: Hauv cov qauv tam sim no, cov hlau puag ncig yog hais txog HPB235 qib steel tuav, thiab nws cov qauv tsim khoom yog "Kub-dov du steel tuav rau cov pob zeb muaj zog" (GB13013); threaded steel feem ntau yog hais txog HRB335 thiab HRB400 qib steel tuav, thiab nws cov khoom tsim Cov qauv yog "Kub-dov ribbed steel tuav rau cov pob zeb muaj zog" (GB1499).
3. Muaj zog sib txawv: Lub zog tsim ntawm cov hlau puag ncig (HPB235) yog 210MPa; lub zog ntawm rebar yog siab dua li cov hlau puag ncig, lub zog tsim ntawm HRB335 yog 300MPa; lub zog tsim ntawm HRB400 yog 360MPa.
4. Cov hlau sib txawv (cov tshuaj sib txawv): cov hlau puag ncig (HPB235) yog cov hlau, cov hlau yog Q235; threaded steel yog tsawg alloy steel, HRB335 qib steel bar yog 20MnSi (20 manganese silicon); HRB400 qib steel bar yog 20MnSiV lossis 20MnSiNb lossis 20MnTi, thiab lwm yam.
5. Cov khoom sib txawv ntawm lub cev thiab cov khoom siv kho tshuab: Vim muaj cov tshuaj lom neeg sib txawv thiab lub zog ntawm cov hlau tuav, cov khoom siv lub cev thiab cov khoom siv sib txawv. Round steel muaj kev ua haujlwm txias-bending zoo dua thiab tuaj yeem siv los ua 180-degree nkhaus hooks, thaum rebar tsuas yog siv los ua 90-degree ncaj hooks; round steel muaj zoo weldability, thiab zoo tib yam carbon vuam pas nrig yuav siv tau, thaum rebar yuav tsum tau ua los ntawm tsawg-carbon vuam rods. Alloy welding pas nrig; rebar yog zoo dua li round steel nyob rau hauv cov nqe lus ntawm toughness thiab qaug zog kuj.
