ASTM A213 / A213M-19a Aloi Fferritig ac Austenitig Di-dor-Boeler Dur, Superheater, a thiwbiau cyfnewid gwres
Mae'r meintiau tiwbiau a'r trwch wedi'u dodrefnu fel arfer i'r fanyleb hon yn 1/8 modfedd [3.2 mm] mewn diamedr y tu mewn i 5 modfedd [127 mm] mewn diamedr allanol a 0.015 i 0.500 i mewn [0.4 i 12.7 mm], yn gynhwysol, mewn trwch wal lleiaf neu, os nodir yn y gorchymyn, trwch wal cyfartalog. Gellir dodrefnu tiwbiau â diamedrau eraill, ar yr amod bod tiwbiau o'r fath yn cydymffurfio â holl ofynion eraill y fanyleb hon.
Dimensiynau tiwb dur aloi ASTM A213:
Gradd: T2, T5, T9, T11, T12, T91, T92
Diamedr Allanol: 4 -127mm
Trwch Wal: 0.4-12.7mm
Hyd: 32m Uchafswm.
Cyfansoddiad cemegol tiwb dur aloi ASTM A213:
|
Gradd |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
V |
N |
Ni |
Al |
Nb |
W |
|
T2 |
0.10-0.20 |
0.30-0.61 |
0.025 uchafswm |
0.025 uchafswm |
0.10-0.30 |
0.50-0.81 |
0.44-0.65 |
||||||
|
T5 |
0.15 uchafswm |
0.30-0.60 |
0.025 uchafswm |
0.025 uchafswm |
0.50 uchafswm |
4.00-6.00 |
0.45-0.65 |
||||||
|
T9 |
0.15 uchafswm |
0.30-0.60 |
0.025 uchafswm |
0.025 uchafswm |
0.25-1.00 |
8.0-10.0 |
0.90-1.10 |
||||||
|
T11 |
0.15 uchafswm |
0.30-0.60 |
0.025 uchafswm |
0.025 uchafswm |
0.50-1.00 |
1.00-1.50 |
0.44-0.65 |
||||||
|
T12 |
0.15 uchafswm |
0.30-0.60 |
0.025 uchafswm |
0.025 uchafswm |
0.50-1.00 |
1.00-1.50 |
0.44-0.65 |
||||||
|
T22 |
0.05-0.15 |
0.30-0.60 |
0.025 uchafswm |
0.025 uchafswm |
0.50 uchafswm |
1.90-2.60 |
0.87-1.13 |
||||||
|
T91 |
0.08-0.12 |
0.30-0.60 |
0.020 uchafswm |
0.010 uchafswm |
0.20-0.50 |
8.00-9.50 |
0.85-1.05 |
0.18-0.25 |
0.03-0.07 |
0.40 uchafswm |
0.04 uchafswm |
0.06-0.10 |
|
|
T92 |
0.07-0.13 |
0.30-0.60 |
0.020 uchafswm |
0.010 uchafswm |
0.50 uchafswm |
8.50-9.50 |
0.30-0.60 |
.015-0.25 |
0.03-0.07 |
0.40 uchafswm |
0.04 uchafswm |
0.04-0.09 |
1.50-2.00 |
Tabl eiddo mecanyddol tiwb dur aloi ASTM A213:
|
Gradd |
Cryfder tynnol,Mpa |
Cryfder Cynnyrch,Mpa |
elongation, % |
caledwch,HB |
|
T2 |
415 mun |
205 mun |
30 mun |
163 uchafswm |
|
T5 |
415 mun |
205 mun |
30 mun |
163 uchafswm |
|
T9 |
415 mun |
205 mun |
30 mun |
179 uchafswm |
|
T11 |
415 mun |
205 mun |
30 mun |
179 uchafswm |
|
T12 |
415 mun |
205 mun |
30 mun |
179 uchafswm |
|
T22 |
415 mun |
205 mun |
30 mun |
163 uchafswm |
|
T91 |
585 mun |
415 mun |
20 mun |
250 uchafswm |
|
T92 |
585 mun |
415 mun |
20 mun |
250 uchafswm |
Tiwb dur aloi ASTM A213 y tu allan i oddefgarwch diamedr:
|
Dull |
Diamedr y tu allan,mm |
Goddef, mm |
|
Rholio Poeth |
OD=101.6 |
+0.4 / -0.8 |
|
101.6<> |
+0.4 / -1.2 |
|
|
190.5<> |
+0.4 / -1.6 |
|
|
Oer Drawn |
OD<25.4 |
±0.10 |
|
25.4=OD=38.1 |
±0.15 |
|
|
38.1<> |
±0.20 |
|
|
50.8=OD<63.5 |
±0.25 |
|
|
63.5=OD<76.2 |
±0.30 |
|
|
76.2=OD=101.6 |
±0.38 |
|
|
101.6<> |
?0.38 / -0.64 |
|
|
190.5<> |
?0.38 / -1.14 |
Goddefgarwch trwch wal tiwb dur aloi ASTM A213:
|
Dull |
Diamedr y tu allan,mm |
Goddefgarwch, % |
|
Rholio Poeth |
OD=101.6,WT=2.4 |
+40 / -0 |
|
OD=101.6, 2.4<> |
+35 / -0 |
|
|
OD=101.6,3.8<> |
+33 / -0 |
|
|
OD=101.6,WT>4.6 |
+28 / -0 |
|
|
OD>101.6,2.4<> |
+35 / -0 |
|
|
OD>101.6,3.8<> |
+33 / -0 |
|
|
OD>101.6,WT>4.6 |
+28 / -0 |
|
|
Oer Drawn |
OD=38.1 |
+20 / -0 |
|
OD>38.1 |
+22 / -0 |
