Kina Brand New Q235C Q235B 16Mn Weld carbon steel paipu / paipu
Nānā nui
Ke kākoʻo nei ka ʻoihana i ka manaʻo o "E lilo i mea kiʻekiʻe e pili ana i ka hoʻonā paipu", e hoʻomau mākou i ka lawelawe ʻana i nā mea kūʻai mua a me nā mea hou mai ka home a me nā ʻāina ʻē a pau. No ka paipu kalapona i wili ʻia a i ʻole ka paipu maʻemaʻe e pili ana i ka maʻamau ASTM A53, ua ʻoi aku ma mua o 30 mau makahiki o ka ʻike e kūʻai a kūʻai aku, hiki iā mākou ke hōʻoia i ka hiki ke hōʻoia i ke kūlana kiʻekiʻe o kēlā me kēia paipu.
About seamless paipu, aia no fake seamless paipu e noho nei, ka mea mechanical waiwai ua emi ma mua o seamless paipu, no ka mea, ua hana ia mai ERW paipu, ma hope o ke kaʻina hana, ua hoʻololi ia laina kuʻiʻo i aneane invisible. ʻAʻole hiki i kēia ʻano paipu ke hoʻomanawanui i ke kaomi kiʻekiʻe, a me ka ikaika tensile, ʻaʻole hiki i ke koʻikoʻi kūloko ke hoʻokō i nā koi e pili ana i ka paipu seamless. E hoʻohui i kēia paipu ʻelua ʻano, e ʻoluʻolu e hoʻomaopopo i ka paipu ERW a pau i hana ʻia mai nā ʻāpana kila, no laila ua ʻano like ka mānoanoa o ka paia; hana ʻia ka paipu maʻemaʻe mai ka pā poepoe, e hoʻoheheʻe ʻia i waenakonu o ka pā poepoe e hana ai i nā paipu, no laila ʻaʻole like ka mānoanoa o ka pā. A ke mau nei ka laina weld o ka paipu seamless hoʻopunipuni, inā ʻoe e nānā pono i ka paipu i loko, hiki iā ʻoe ke loaʻa.
Hoʻohana nui ʻia ia no nā ʻāpana ikaika a me nā ʻāpana, a no ke kumu nui o ka mahu, ka wai, ke kinoea a me nā paipu ea.
Papa Nui
GR.A, GR.B
Mea Kimia
| Papa | Huina %，≤ | ||||||||
| C | Mn | P | S | CuA | NiA | CrA | MoA | VA | |
| ʻAno S (paipu ʻole) | |||||||||
| GR.A | 0.25B | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| ʻAno E | |||||||||
| GR.A | 0.25B | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| ʻAno F(Furnace Welded Paipu) | |||||||||
| A | 0.30B | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
ʻAʻole ʻoi aku ka nui o kēia mau mea ʻelima ma mua o 1.00%.
B No kēlā me kēia 0.01% ka emi ʻana o ka nui o ka carbon content, ʻae ʻia ka nui o ka manganese e hoʻonui i ka 0.06%, akā ʻaʻole hiki ke kiʻekiʻe ma mua o 1.35%.
C ʻO kēlā me kēia 0.01% ka emiʻana o ke kalapona kalapona kiʻekiʻe eʻae i ka nui o ka manganese e hoʻonui i ka 0.06%, akā,ʻaʻole pono ka nui ma mua o 1.65%.
Waiwai Mekani
| mea | GR.A | GR.B |
| ikaika uʻi, ≥, psi [MPa] Ka ikaika o ka hua, ≥, psi [MPa] Ana 2in. a i ʻole 50mm elongation | 48 000 [330]30 000 [205]A,B | 60 000 [415]35 000 [240]A,B |
A ʻO ka lōʻihi liʻiliʻi o ka lōʻihi 2in. (50mm) e hoʻoholo ʻia e kēia ʻano kumu:
e=625000(1940)A0.2/U0.9
e = ka lōʻihi liʻiliʻi o ka anana 2in. (50mm), ka pākēneka i hoʻopuni ʻia i ka 0.5% kokoke loa;
A = helu ʻia e like me ke anawaena o waho o ka paipu inoa a i ʻole ka laula inoa o ka hāpana tensile a me kona mānoanoa pā i kuhikuhi ʻia, a hoʻopuni ʻia i kahi kokoke loa o ka hāpana tensile o 0.01 in.2 (1 mm2), a Hoʻohālikelike ʻia me 0.75in.2 (500mm2), ʻoi aku ka liʻiliʻi.
U = ka ikaika tensile palena iki, psi (MPa).
B No nā hui like ʻole o nā nui like ʻole o nā hōʻike hoʻāʻo tensile a me ka ikaika tensile haʻahaʻa i kuhikuhi ʻia, hōʻike ʻia ka elongation haʻahaʻa i koi ʻia ma ka Papa X4.1 a i ʻole ka Papa X4.2, e like me kona kūpono.
Koi hoao
ʻO ka hoʻāʻo tensile, ka hoʻāʻo ʻana, ka hoʻāʻo hydrostatic, ka hoʻāʻo uila nondestructive o nā welds.
Hiki ke hoolako
Hiki ke hoʻolako: 2000 Tons i kēlā me kēia mahina no ka papa o ASTM A53 / A53M-2012 Steel Pipe
Hoʻopili ʻia
I loko o nā pūʻolo a i loko o ka pahu lāʻau ikaika
Hāʻawi
7-14 mau lā inā ma ka waihona, 30-45 mau lā e hana ai
Uku
30% depsoit, 70% L/C a i ʻole B/L kope a i ʻole 100% L/C i ka ʻike
Huahana Huahana
Paipu paila
GB/T 8162-2008
ASTM A519-2006
BS EN10210-1-2006
ASTM A53/A53M-2012
GB9948-2006
GB6479-2013
