Nā Koina Hoʻohui Kemika,%,
C: ≤0.30
Mn: 0.29-1.06
P: ≤0.025
S: ≤0.025
Si: ≥0.10
Ni: ≤0.40
Kr: ≤0.30
Cu: ≤0.40
V: ≤0.08
Nb: ≤0.02
Mo: ≤0.12
*Hiki ke hoʻonui ʻia ka nui o ka manganese ma 0.05% no kēlā me kēia emi ʻana o ka nui o ke kalapona ma 0.01% a hiki i ka 1.35%.
**Hiki ke hoʻonui ʻia ka nui o ka Niobium, ma muli o ka ʻaelike, a hiki i ka 0.05% no ka nānā ʻana i ka heheʻe a me 0.06% no ka nānā ʻana i ka huahana i hoʻopau ʻia.
Nā koi lapaʻau wela:
1. E hoʻomaʻamaʻa ma luna o 815°C.
2. E hoʻomaʻamaʻa ma luna o 815°C, a laila e hoʻomāmā.
3. Hoʻokumu ʻia ma waena o 845 a me 945°C, a laila hoʻomaʻalili ʻia i loko o ka umu ma luna o 845°C (no nā paipu humuhumu wale nō).
4. I mīkini ʻia a laila hoʻomaʻamaʻa ʻia e like me ka Point 3 ma luna.
5. Hoʻopaʻakikī ʻia a laila hoʻomaʻamaʻa ʻia ma luna o 815°C.
Nā koi hana mīkini:
Ikaika hāʻawi: ≥240Mpa
Ikaika tensile: ≥415Mpa
Hoʻolōʻihi
| Laʻana | A333 GR.6 | |
| Kū pololei | ʻĀwiliwili | |
| Ka waiwai haʻahaʻa loa o kahi pōʻai maʻamauhāpana a i ʻole kahi hāpana liʻiliʻi me ka mamao māka o 4D | 22 | 12 |
| Nā ʻāpana huinahā me nā mānoanoa o ka paia o 5/16 ʻīniha (7.94 mm) a ʻoi aku, a me nā ʻāpana liʻiliʻi a pau i hoʻāʻo ʻia maʻāpana kea piha ma 2 ʻīniha (50 mm)nā māka | 30 | 16.5 |
| Nā ʻāpana huinahā a hiki i ka mānoanoa o ka paia he 5/16 ʻīniha (7.94 mm) ma ka mamao māka he 2 ʻīniha (50 mm) (ka laulā o ka ʻāpana he 1/2 ʻīniha, 12.7 mm) | A | A |
A E ʻae i ka hōʻemi ʻana o 1.5% i ka elongation longitudinal a me ka hōʻemi ʻana o 1.0% i ka elongation transverse no kēlā me kēia 1/32 ʻīniha (0.79 mm) o ka mānoanoa o ka paia a hiki i ka 5/16 ʻīniha (7.94 mm) mai nā waiwai elongation i helu ʻia ma luna.
Hoʻāʻo hopena
Mahana Hoʻāʻo: -45°C
Ke hoʻohana ʻia nā ʻāpana hopena Charpy liʻiliʻi a ʻoi aku ka laulā o ka notch o ka specimen ma mua o 80% o ka mānoanoa maoli o ka mea, pono e hoʻohana ʻia kahi mahana hoʻāʻo hopena haʻahaʻa e like me ka mea i helu ʻia ma ka Papa 6 o ka kikoʻī ASTM A333.
| Laʻana, mm | ʻO ka awelika haʻahaʻa loa o ʻekolu mau laʻana | Ka waiwai haʻahaʻa loa oe onā hāpana ʻekolu |
| 10 × 10 | 18 | 14 |
| 10 × 7.5 | 14 | 11 |
| 10 × 6.67 | 12 | 9 |
| 10 × 5 | 9 | 7 |
| 10 × 3.33 | 7 | 4 |
| 10 × 2.5 | 5 | 4 |
Pono e hoʻāʻo ʻia nā paipu kila ma ke ʻano hydrostatic a i ʻole ka ʻole e luku (eddy current a ultrasonic paha) ma kēlā me kēia lālā.
Ke ahonui ʻana o ke anawaena o waho o ka paipu kila:
| Anawaena o waho, mm | hoʻomanawanui maikaʻi, mm | ka hoʻomanawanui maikaʻi ʻole, mm |
| 10.3-48.3 | 0.4 | 0.4 |
| 48.3＜D≤114.3 | 0.8 | 0.8 |
| 114.3＜D≤219.10 | 1.6 | 0.8 |
| 219.1＜D≤457.2 | 2.4 | 0.8 |
| 457.2＜D≤660 | 3.2 | 0.8 |
| 660＜D≤864 | 4.0 | 0.8 |
| 864＜D≤1219 | 4.8 | 0.8 |
Ka hoʻomanawanui ʻana o ka mānoanoa o ka paia o ka paipu kila:
ʻAʻole e emi kekahi kiko ma mua o 12.5% o ka mānoanoa o ka paia maʻamau. Inā ua kauoha ʻia ka mānoanoa o ka paia liʻiliʻi loa, ʻaʻohe kiko e emi ma mua o ka mānoanoa o ka paia i koi ʻia.
Ka manawa hoʻouna: Pepeluali-22-2024