Muundo wa Daraja na Kemikali (%)
Daraja | C | Mn | P≤ | S≤ | Si | Cr | Mo |
T11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 0.50-1.00 | 1.00-1.50 |
T12 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025 | ≤0.50 | 0.80-1.25 | 0.44-0.65 |
T13 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | 0.87-1.13 |
Sifa za Mitambo(MPa):
Daraja | Pointi ya Tensile | Pointi ya Mazao |
T11 | ≥415 | ≥205 |
T12 | ≥415 | ≥220 |
T13 | ≥415 | ≥205 |
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Ukaguzi wa kipenyo cha nje
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Ukaguzi wa Unene wa Ukuta
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Maliza Ukaguzi
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Ukaguzi wa Unyoofu
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Ukaguzi wa UT
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Ukaguzi wa Muonekano
mirija ya chuma isiyo na mshono ya ASTM A213 hutolewa ama kwa kukokotwa na baridi au moto, kama ilivyobainishwa.Daraja la TP347HFG litakuwa limekamilika.Matibabu ya joto yatafanywa tofauti na kwa kuongeza inapokanzwa kwa kuunda moto.Aloi ya feri na vyuma vya chuma vya feri vitapashwa moto upya.Kwa upande mwingine, zilizopo za chuma cha pua za austenitic zitatolewa katika hali ya kutibiwa kwa joto.Vinginevyo, mara tu baada ya kutengeneza moto, wakati joto la zilizopo sio chini ya kiwango cha chini cha joto la suluhisho, zilizopo zinaweza kuzimwa kwa maji au kupozwa haraka kwa njia nyingine.
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
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mirija ya chuma ya JIS G3441Aloi isiyo imefumwa
Bomba la chuma lisilo na mshono la ASTM A519
Bomba la chuma la ASTM A335 Aloi isiyo na mshono