ASTM A516/A516M-17 PDF
X'inhu ekwivalenti għal ASTM A516?
ASTM A516 GD 70- Azzar tal-Bastimenti tal-Pressjoni
ASTM A516 Grad 70 huwa bojler / reċipjent taħt pressjoni ta 'kwalità ta' pjanċa tal-azzar għall-użu f'servizzi baxxi għal moderati. Tejbet it-toughness tal-talja. Il-pjanċa tal-azzar A516 GD70 hija ekwivalenti għall-gradi P355GH u 490B.
X'inhi Differenza BejnASTM A516GRAD 60 u 70
| Element | Kompożizzjoni % | ||||
| Grad 55 [Grad 380] |
Grad 60 [Grad 415] |
Grad 65 [Grad 450] |
Grad 70 [Grad 485] |
||
| Karbonju, max a,b: | |||||
| 1⁄2 pulzieri [12.5 mm] u taħt | 0.18 | 0.21 | 0.24 | 0.27 | |
| Aktar minn 1⁄2 pulzieri sa 2 pulzieri [12.5 sa 50 mm], inkl | 0.20 | 0.23 | 0.26 | 0.28 | |
| Aktar minn 2 pulzieri sa 4 pulzieri [50 sa 100 mm], inkl | 0.22 | 0.28 | 0.25 | 0.30 | |
| Aktar minn 4 sa 8 pulzieri [100 sa 200 mm], inkl | 0.24 | 0.27 | 0.29 | 0.31 | |
| Aktar minn 8 pulzieri [200 mm] | 0.26 | 0.27 | 0.29 | 0.31 | |
| Manganiż, b: | |||||
| 1⁄2 pulzieri [12.5 mm] u taħt | |||||
| Analiżi tas-sħana | 0.60–0.90 | 0.60–0.90 c | 0.85–1.20 | 0.85–1.20 | |
| Analiżi tal-prodott | 0.55–0.98 | 0.55–0.98 c | 0.79–1.30 | 0.79–1.30 | |
| Aktar minn 1⁄2 pulzieri [12.5 mm]: | |||||
| Analiżi tas-sħana | 0.60–1.20 | 0.85–1.20 | 0.85–1.20 | 0.85–1.20 | |
| Analiżi tal-prodott | 0.55–1.30 | 0.79–1.30 | 0.79–1.30 | 0.79–1.30 | |
| Fosfru, max a | 0.25 | 0.25 | 0.25 | 0.25 | |
| Kubrit, max a | 0.25 | 0.25 | 0.25 | 0.25 | |
| Silikon | |||||
| Analiżi tas-sħana | 0.15–0.40 | 0.15–0.40 | 0.15–0.40 | 0.15–0.40 | |
| Analiżi tal-prodott | 0.13–0.45 | 0.13–0.45 | 0.13–0.45 | 0.13–0.45 | |
Għal xiex huwa l-istress permissibbliA516 GR 70?
Stress Massimu Permess f'Temperaturi Elevati
| *Temp. | -20~100 | 200 |
|---|---|---|
| *MAS | 20.0 | 20.0 |
| *Temp. | 650 | 750 |
| *MAS | 18.8 | 14.8 |
