Tiwb Sgwâr ASTM A554
Mae tiwbiau A554 yn addas ar gyfer tiwbiau mecanyddol wedi'u weldio neu lai oer gyda diamedrau allanol hyd at ac yn cynnwys 16 modfedd (40 6.4 mm) a thrwch wal o 0.020 modfedd (0.51 mm) ac uwch. Mae tiwbiau weldio dur di-staen A554 yn addas ar gyfer tiwbiau dur di-staen wedi'u weldio at ddibenion mecanyddol lle mae angen ymddangosiad, priodweddau mecanyddol, neu ymwrthedd cyrydiad.
| Manyleb | ASTM A554% 2f ASME SA554 |
| Graddau | ASTM A554 (MT316/316L, MT304/304L), JIS G3446 (SUS316TK, SUS304TK), CNS 5802 (304TK, 316TK), (YC1) |
| Maint | 6 DS i 1200 DS IN |
| Maint Diamedr Allanol | 9.5mm ~ 139.7mm |
| Trwch wal | 0.6 ~ 3.05mm |
| Atodlen | SCH. 5, 10, 60, 20, 30, 40, 80, 100, 120, 140, 160, XXS. |
| Dull | TIG neu TIG + Plasma neu Laser |
| Gorffen | Gorffeniad Melin 2B , Gorffeniad Rhif 4, Gorffeniad 400 Grit, Gorffeniad BA, Gorffeniad 550 Grit, Gorffeniad 600 Grit |
| Hyd | Ar Hap Sengl, Hap Dwbl a Hyd Torri |
| Mathau | Sgwâr, Petryal, Crwn, Coil, Siâp "U", Tiwbiau Hydrolig a Honedig |
Cyfansoddiad Cemegol Tiwbio Dur ASTM A554
| GRADDAU TIWBIO ASTM A554 | UNS | C | Mn | P | S | Os | Cr | Ni | Mo | Ti | Ds | N |
| ASTM A554 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | ||||
| ASTM A554 L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-13.0 | ||||
| ASTM A554 316 | S3160 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 | |||
| ASTM A554 316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
Priodweddau Mecanyddol Tiwbio Dur A554
| Deunydd | Gwres | Tymheredd | Cryfder Tynnol | Cryfder Cynnyrch | Elongation %, Min |
| Triniaeth | Isafswm.º F(ºC) | Ksi (MPa) , Min. | Ksi (MPa) , Min. | ||
| ASTM A554 | Ateb | 1900 (1040) | 75(515) | 30(205) | 35 |
| ASTM A554 L | Ateb | 1900 (1040) | 70(485) | 25(170) | 35 |
| ASME SA{0}} | Ateb | 1900(1040) | 75(515) | 30(205) | 35 |
| ASTM A554 316L | Ateb | 1900(1040) | 70(485) | 25(170) | 35 |
SA554 Goddefgarwch Tiwbio Dur Di-staen
|
Goddefiannau - Diamedr, Wal- Tiwbiau Crwn |
|||
|
Maint OD |
Trwch wal |
OD |
|
| Tiwbiau Sgwâr Wedi'i Weldio Dur Di-staen ASTM A554 |
O dan 1/2 |
{{0}}.020 i 0.049 |
0.004 |
|
1/2 i 1 |
{{0}}.020 i 0.065 |
0.005 |
|
|
1/2 i 1 |
dros {{0}}.065 i 0.134 |
0.010 |
|
|
Dros 1 i 1-1/2 |
{{0}}.025 i 0.065 |
0.008 |
|
|
Dros 1 i 1-1/2 |
dros {{0}}.065 i 0.134 |
0.010 |
|
|
Dros 1-1/2 i 2 |
{{0}}.025 i 0.049 |
0.010 |
|
|
Dros 1-1/2 i 2 |
dros {{0}}.049 i 0.083 |
0.011 |
|
|
Dros 1-1/2 i 2 |
dros {{0}}.083 i 0.149 |
0.012 |
|
|
Dros 2 i 2-1/2 |
{{0}}.032 i 0.065 |
0.012 |
|
|
Dros 2 i 2-1/2 |
dros {{0}}.065 i 0.109 |
0.013 |
|
|
Dros 2 i 2-1/2 |
dros {{0}}.109 i 0.165 |
0.014 |
|
|
Dros 2-1/2 i 3-1/2 |
{{0}}.032 i 0.165 |
0.014 |
|
|
Dros 2-1/2 i 3-1/2 |
dros 0.165 |
0.020 |
|
|
Dros 3-1/2 i 5 |
{{0}}.035 i 0.165 |
0.020 |
|
|
Dros 3-1/2 i 5 |
dros 0.165 |
0.025 |
|
|
Dros 5 i 7-1/2 |
{{0}}.049 i 0.250 |
0.025 |
|
|
Dros 5 i 7-1/2 |
dros 0.250 |
0.030 |
|
|
Dros 7-1/2 i 16 |
I gyd |
0.00125 Mewn/Mewn Cylchedd |
|
A554 Pibell Wedi'i Weldio Dur Di-staen


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