Beth yw'r deunydd cyfatebol ASTM A513?
Mae ASTM A513 Cyfwerth yn DIN 17175 Gradd 16Mo5, ASTM A513, ASME SA513 ASTM A513 manyleb yn cwmpasu tiwbiau dur carbon trydan-gwrthiant-weldio i'w defnyddio fel tiwbiau mecanyddol ac addurniadol.
Beth yw'r gwahaniaeth rhwng A512 ac A513?
Mae ASTM A513 wedi'i nodi ar gyfer carbon ac aloi wedi'i Weldio Gwrthsefyll (ERW) Tiwbiau mecanyddol trydan, tra bod ASTM A512 yn gorchuddio tiwbiau mecanyddol dur carbon buttweld oer wedi'u tynnu'n oer, mae ASTM A519 yn fanyleb safonol ar gyfer Tiwbiau Mecanyddol Carbon Di-dor a Dur Alloy.
| Dynodiad Gradd | Carbon | Manganîs | Ffosfforws, uchafswm. | Sylffwr, uchafswm. |
| 1008 | 0.10 uchafswm. | 0.50 uchafswm. | 0.035 | 0.035 |
| 1010 | 0.05 – 0.15 | 0.30 – 0.60 | 0.040 | 0.050 |
| 1020 | 0.15 – 0.25 | 0.30 – 0.60 | 0.040 | 0.050 |
| Terfynau Caledwch a Phriodweddau Tynnol ar gyfer Tiwbiau Crwn | Yield Nerth, ksi (Mpa), min. | Cryfder eithaf, ksi (Mpa), min. | Elongation mewn 2 modfedd neu 50 mm, %, min. | RB mun. |
| Dynodiad Gradd | ||||
| 1008 | 30 (207) | 42 (290) | 15 | 50 |
| 1010 | 32 (221) | 45 (310) | 15 | 55 |
| 1015 | 35 (241) | 48 (331) | 15 | 58 |
| 1020 | 38 (262) | 52 (359) | 12 | 62 |
| Trwch Wal (modfeddi) {Birmingham Wire Gage} | .375 i 0.875 yn gynwysedig | Dros 0.875 modfedd i 1.875 modfedd, Cynhwysol | Dros 1.875 modfedd i 3.750 modfedd, Cynhwysol | Dros 3.750 modfedd i 5.000 modfedd, Cynhwysol | Dros 5.000 modfedd i 6.000 modfedd, Cynhwysol | Dros 6.000 modfedd i 8.000 modfedd, Cynhwysol | Dros 8.000 modfedd i 10.000 modfedd, Cynhwysol | Dros 10.000 modfedd i 12.000 modfedd, Cynhwysol |
| 0.022 {24} | + 0.001 / – 0.005 | + 0.001 / – 0.005 | ….. | ….. | ….. | …… | …… | …… |
| 0.028 {22} | + 0.001 / – 0.005 | + 0.001 / – 0.005 | ….. | ….. | ….. | …… | …… | …… |
| 0.035 {20} | + 0.002 / – 0.005 | + 0.001 / – 0.005 | + 0.001 / – 0.005 | ….. | ….. | …… | …… | …… |
| 0.042 {19} | + 0.002 / – 0.006 | + 0.001 / – 0.006 | + 0.001 / – 0.006 | ….. | ….. | …… | …… | …… |
| 0.049 {18} | + 0.003 / – 0.006 | + 0.002 / – 0.006 | + 0.002 / – 0.006 | ….. | ….. | …… | …… | …… |
| 0.065 {16} | + 0.005 / – 0.007 | + 0.004 / – 0.007 | + 0.004 / – 0.007 | + 0.004 / – 0.007 | + 0.004 / – 0.007 | …… | + 0.004 / – 0.008 | …… |
| 0.072 {15} | + 0.006 / – 0.007 | + 0.005 / – 0.007 | + 0.004 / – 0.007 | + 0.004 / – 0.007 | + 0.004 / – 0.008 | …… | …… | …… |
| 0.083 {14} | + 0.006 / – 0.007 | + 0.005 / – 0.007 | + 0.004 / – 0.007 | + 0.004 / – 0.007 | + 0.004 / – 0.008 | + 0.004 / – 0.008 | + 0.004 / – 0.008 | + 0.004 / – 0.008 |
| 0.095 {13} | + 0.006 / – 0.007 | + 0.005 / – 0.007 | + 0.004 / – 0.007 | + 0.004 / – 0.007 | + 0.004 / – 0.008 | + 0.004 / – 0.008 | + 0.004 / – 0.008 | + 0.004 / – 0.008 |
| 0.109 {12} | ….. | + 0.006 / – 0.008 | + 0.005 / – 0.008 | + 0.005 / – 0.008 | + 0.005 / – 0.009 | + 0.005 / – 0.009 | + 0.005 / – 0.009 | + 0.005 / – 0.009 |
| 0.120 {11} | ….. | + 0.007 / – 0.008 | + 0.006 / – 0.008 | + 0.005 / – 0.008 | + 0.005 / – 0.009 | + 0.005 / – 0.009 | + 0.005 / – 0.009 | + 0.005 / – 0.009 |
| 0.134 {10} | ….. | + 0.007 / – 0.008 | + 0.006 / – 0.008 | + 0.005 / – 0.008 | + 0.005 / – 0.009 | + 0.005 / – 0.009 | + 0.005 / – 0.009 | + 0.005 / – 0.009 |
