Farqiga u dhexeeya ASTM A249 A270 A269 iyo A213 tuubooyinka birta ah

ASTM A269 waa qeexitaan halbeeg ah oo loogu talagalay tuubooyinka birta aan fiicneyn ee austenitic austenitic ah ee loogu talagalay adeegyada daxalka-iska-caabbinta iyo heerkulka hooseeya ama sare.ASTM A249 ASTM A213 waa qeexitaan halbeeg ah oo loogu talagalay kuleyliyaha birta ah ee birta ah, kuleyliyaha sare, iyo kuleyliyaha. Farqiga u dhexeeya A269, A249, iyo A213 ayaa ku jira heerarka gaarka ah ee ay u taagan yihiin tuubooyinka birta ah.

Heerka ASTMA249 ASTM A269 ASTMA270 ASTM213

Heerka Dulqaadka Dhexroorka Dibadda
(mm)
Dhumucda gidaarka (%) Dulqaadka Dhererka (mm)
ASTM A249 <25.0 +0.10 -0.11 ± 10%     
≥25.0-≤40.0 ±0.15
>40.0-<50.0 ±0.20 OD <50.8 + 3.0-0.0
≥50.0~<65.0 ±0.25     
≥65.0-<75.0 ±0.30
≥75.0~<100.0 ±0.38 OD≥50.8 +5.0-0.0
≥100~≤200.0 +0.38 -0.64     
>200.0-≤225.0 +0.38 -1.14
ASTM A269 <38.1 ±0.13   
≥38.1~<88.9 ±0.25
≥88.9- <139.7 ±0.38 ± 15.0% OD <38.1 + 3.2-0.0
≥139.7~<203.2 ±0.76 ± 10.0% 0D ≥38.1 +4.0-0.0
≥203.2-<304.8 ±1.01
≥304.8-<355.6 ±1.26
ASTMA270 ≤25.4 ±0.13 ± 10% + 10-0.0
>25.4-≤50.8 ±0.20
>50.8~≤62 ±0.25
>76.2- ≤101.6 ±0.38
>101.6~<139.7 ±0.38
≥139.7-203.2 ±0.76
≥203 2~≤304.8 ±1.27
ASTM213 D 25.4 ± 0.10 +20/0 +3.0/0
25.4-38.1 ±0.15
38.1 ~ 50.8 ±0.20
50.8-63.5 ±0.25 +22/0 +5.0/0
63.5-76.2 ±0.30
76.2 ~ 101.6 ±0.38
101.6 ~ 190.5 +0.38/-0.64
190.5 ~ 228.6 +0.38/-1.14

Waqtiga boostada: Juun-27-2023