Iikhigrati zebakala, iipropathi zoomatshini kunye neenkcazo zemveliso zilawulwa luluhlu lwemigangatho yamazwe ngamazwe neyesizwe yentsimbi engenasiseko. Ngelixa i-Aisi endala ye-Aisi ezintathu ze-Staings (umz. 304 ukuya kwi-304 ukuya kwi-306) isasetyenziswa ngokuqhelekileyo ukuhlelwa kwamanqanaba ensizi engenasimo, iinkqubo ezintsha zokuhlelwa sele ziphuhlisiwe.
Ezi nkqubo zibandakanya iileta ezi-1 + ezi-5 zenani le-5, njenge-S30400, njengoko kuchaziwe yi-SAE kunye ne-ASTM. Amazwe aseYurophu ayamkela imigangatho yemigangatho ye-Euro. La mazwe athatha indawo okanye alungelelanise imigangatho yabo yelizwe ukuze asebenzise imigangatho yemigangatho ye-Euro. Olunye ulokishilo olutshintshwa lubandakanya ii-Bs ezindala kunye neenombolo ezingama-304s31 kunye ne-58e.
Amanye amabakala awagutyungelwa ngamanani asemgangathweni kwaye anokuba namabanga ophantsi okanye abizwa ngokuba yiMigangatho yeemveliso zeengcali ezifana necingo le-weldia.
Imigangatho yentsimbi engenasimo ichazwa ngokweenkcukacha kwi-Bhritane engenasifo sensimbi "kwizikhokelo zentsimbi engenasitali", ekwabizwa ngokuba yi-BSSSA "isikhokelo esiluhlaza okwesibhakabhaka".
Itheyibhile engezantsi idwelisa uluhlu lwamabakala ensizi engenasitali, i-BS yabo yakudala ye-BS, inombolo entsha engaphakathi kunye nokuchongwa kwe-en.
| Ibanga | Ayisiyiyo | BS | I-Euro meko |
| 301 | S30100 | I-301s21 | 1.4310 |
| 302 | S30200 | I-302s25 | 1.4319 |
| 303 | S30300 | I-303s31 | 1.4305 |
| 304 | S30400 | I-304s31 | 1.4301 |
| I-304L | S30403 | I-304s11 | 1.4306 |
| 304h | S30409 | - | 1.4948 |
| (302hq) | S30430 | I-394s17 | 1.4567 |
| 305 | S30500 | I-305s19 | 1.4303 |
| I-309s | S30908 | I-309s24 | 1.4833 |
| I-310 | I-S31000 | I-310s24 | 1.4840 |
| I-310s | S31008 | I-310s16 | 1.4845 |
| 314 | S31400 | I-314s25 | 1.4841 |
| 316 | S31600 | I-316s31 | 1.4401 |
| I-316l | S31603 | I-316s11 | 1.4404 |
| 316h | S31609 | I-316s51 | - |
| I-316TI | S31635 | 320s31 | 1.4571 |
| 321 | S32100 | 321s31 | 1.4541 |
| 347 | S34700 | I-347s31 | 1.4550 |
| 403 | S40300 | I-403s17 | 1.4000 |
| 405 | S40500 | I-405s17 | 1.4002 |
| 409 | S40900 | 409s19 | 1.4512 |
| I-410 | I-S41000 | I-410S21 | 1.4006 |
| 416 | I-S41600 | I-416s21 | 1.4005 |
| I-420 | I-S42000 | I-420s37 | 1.4021 |
| I-430 | I-S43000 | I-430s17 | 1.4016 |
| I-440c | I-S44004 | - | 1.4125 |
| 444 | I-S44400 | - | 1.4521 |
| I-630 | S17400 | - | 1.4542 |
| (904l) | I-N08904 | I-904s13 | 1.4539 |
| (253ma) | S30815 | - | 1.4835 |
| (2205) | S31803 | 318s13 | 1.4462 |
| (3cr12) | I-S41003 | - | 1.4003 |
| (4565s) | S34565 | - | 1.4565 |
| (Zeron100) | S32760 | - | 1.4501 |
| (Ur52n +) | S32520 | - | 1.4507 |
I-ASTM ayiyamkeli izinto ezikhoyo kwizibiyeli. Amanye amabakala amaninzi kunye neenkcazo ziyafumaneka.
Izinto ezibonelelwa nguJindalai Iqela lenziwe ukuze lihambelane nenani lemigangatho exhomekeke kwimveliso. Imigangatho ikwagubungela ukugqitywa kwempahla.
Iqela le-Jindalai iQela- umvelisi otshitshisiweyo oyintsimbi engenasitali e-China. Ukufumana ngaphezulu kweminyaka engama-20 yophuhliso kwiimarike zamanye amazwe kwaye okwangoku unezinto ezi-2 zokuvelisa iitoni ezingaphezu kwe-400,000 ngonyaka. Ukuba ufuna ukufumana ulwazi oluthe kratya malunga nezixhobo zentsimbi ezingenasiseko, wamkelekile ukunxibelelana nathi namhlanje okanye ucele isicatshulwa.
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Ixesha lePosi: Dec-19 ukuya ku-2002