304 304L 316 316L Wasambazaji wa sahani za chuma cha pua nchini China
304 304L 316 316L Wasambazaji wa sahani za chuma cha pua nchini China
Chuma cha pua 304 ndio daraja la chuma cha pua linalotumika sana.Ni chuma cha pua cha chromium-nikeli austenitic chenye maudhui ya chini ya kaboni na chromium na nikeli ya juu kwa kiasi kuliko aina za AISI 301 na 302. Daraja la 304 ni ductile sana wakati katika hali ya anneal.Ina sifa nzuri za joto la juu pamoja na ugumu mzuri kwa joto la chini.Inafaa kwa kulehemu na ambapo bidhaa ya kumaliza inapaswa kupinga aina kali zaidi za kutu.
Vipimo vya Bidhaa na Daraja la Chuma (Kwa Marejeleo)
| ASTM | JIS | AISI | EN | Kiwango cha Mill | |
| Daraja | S30100S30400 S30403 S31008 S31603 S32100 S41008 S43000 S43932 S44400 S44500 | SUS301SUS304 SUS304L SUS310S - SUS321 SUS410S SUS430 - SUS444 SUS430J1L | 301304 304L 310S 316L 321 410S 430 - 444 - | 1.43101.4301 1.4307 1.4845 1.4404 1.4541 - 1.4016 1.4510 1.4521 - | 201202 204Cu3 |
Uvumilivu wa Upana
| Uvumilivu wa Upana | ||
| W chini ya mm 100 | 100 mm ≦ W < 1000 mm | 1000 mm ≦ W <1600 mm |
| ± 0.10 mm | ± 0.25 mm | ± 0.30 mm |
Muundo wa Kemikali & Mali ya Mitambo
Muundo wa Kemikali (Kwa Marejeleo)
Uainishaji wa ASTM
| Daraja la chuma | Ni% Max. | Cr% Max. | Upeo wa C% | Si% Max. | Mn% Max. | Upeo wa P% | Upeo wa S%. | Mo% Max. | Ti% Max. | Nyingine |
| S30100 | 6.0~8.0 | 16.0~18.0 | 0.15 | 1 | 2 | 0.045 | 0.03 | - | - | N: 0.1 Upeo. |
| S30400 | 8.0~10.5 | 17.5~19.5 | 0.07 | 0.75 | 2 | 0.045 | 0.03 | - | - | N: 0.1 Upeo. |
| S30403 | 8.0~12.0 | 17.5~19.5 | 0.03 | 0.75 | 2 | 0.045 | 0.03 | - | - | N: 0.1 Upeo. |
| S31008 | 19.0~22.0 | 24.0~26.0 | 0.08 | 1.5 | 2 | 0.045 | 0.03 | - | - | - |
| S31603 | 10.0~14.0 | 16.0~18.0 | 0.03 | 0.75 | 2 | 0.045 | 0.03 | 2.0~3.0 | - | N: 0.1 Upeo. |
| S32100 | 9.0~12.0 | 17.0~19.0 | 0.08 | 0.75 | 2 | 0.045 | 0.03 | - | 5(C+N)~0.70 | N: 0.1 Upeo. |
| S41000 | 0.75 | 11.5~13.5 | 0.08~0.15 | 1 | 1 | 0.04 | 0.03 | - | - | - |
| S43000 | 0.75 | 16.0~18.0 | 0.12 | 1 | 1 | 0.04 | 0.03 | - | - | - |
| S43932 | 0.5 | 17.0~19.0 | 0.03 | 1 | 1 | 0.04 | 0.03 | - | - | N: 0.03 Max.Al: 0.15 Max.Nb+Ti = [ 0.20 + 4 ( C + N ) ] ~ 0.75 |
Mali ya Mitambo (Kwa Marejeleo)
Uainishaji wa ASTM
| Daraja la chuma | N/mm 2 MIN. Mkazo wa Kukaza | N/mm 2 MIN. Dhiki ya Dhiki | % MIN.Kurefusha | HRB MAX.Ugumu | HBW MAX.Ugumu | Bendability: Pembe ya Kukunja | Bendability: Ndani ya Radius |
| S30100 | 515 | 205 | 40 | 95 | 217 | Hakuna Inahitajika | - |
| S30400 | 515 | 205 | 40 | 92 | 201 | Hakuna Inahitajika | - |
| S30403 | 485 | 170 | 40 | 92 | 201 | Hakuna Inahitajika | - |
| S31008 | 515 | 205 | 40 | 95 | 217 | Hakuna Inahitajika | - |
| S31603 | 485 | 170 | 40 | 95 | 217 | Hakuna Inahitajika | - |
| S32100 | 515 | 205 | 40 | 95 | 217 | Hakuna Inahitajika | - |
| S41000 | 450 | 205 | 20 | 96 | 217 | 180° | - |
| S43000 | 450 | 205 | 22A | 89 | 183 | 180° | - |
