Farqiga u dhexeeya ASTM A249 A270 A269 iyo a213 tuubbada birta ee birta ah

ASTM A269 waa qeexitaan caadi ah oo loogu talagalay tuubbooyinka birta ee aan caadiga ahayn ee loo yaqaan 'austenitic' oo loo yaqaan 'austenitic' oo loo yaqaan 'ausion-ka-hortagga'. ASTM A213 waa qeexitaan caadi ah oo loogu talagalay kuleylka aan kala-sooca lahayn iyo austenitic-ka aasopel-birta, iyo tuubooyinka kuleylka.

Standard Astma249 ASTM A269 Astma270 astm213

Caadi ah Dulqaadashada dhexroor dibadeed
(mm)
Dhumucda darbiga (%) Dulqaadashada 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 +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
≥39.7 ~ <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% + 10-0.0.0
> 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 ~ ≤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 Post: Jun-27-2023