ASTM SAE8620 20CrNiMo Alloy Seamless Steel Paipu

ASTM SAE8620 20CrNiMo Alloy Seamless Steel Pipe Kiʻi ʻia

ʻO ka wehewehe pōkole:

ʻO 20CrNiMo he kila kila kila kila maikaʻi loa me nā waiwai mechanical maikaʻi loa, ka pale ʻana i ka corrosion a me ke kūpaʻa lole.Hoʻohana nui ʻia ia i ka mīkini, ka ʻenekinia, ke kūkulu ʻana a me nā māla mālama kaiapuni.ʻO kona ikaika kiʻekiʻe, ka paʻakikī maikaʻi a me ka ductility e hiki ai iā ia ke mālama i kahi ola lawelawe lōʻihi ma nā wahi paʻakikī a kū i nā ukana kiʻekiʻe, e hāʻawi ana i ke kākoʻo ikaika no ka hoʻomohala ʻana i ka ʻoihana hou a me ka ʻenekinia.

E hoʻouna i ka leka uila iā mākou

Huahana Huahana

Hōʻike Huahana

Hoʻohui Kimia

C	Si	Mn	S	P	Cr	Ni	Mo	Cu
0.17~0.23	0.17~0.37	0.60~0.95	≤0.035	≤0.035	0.40~0.70	0.25~0.75	0.20~0.30	≤0.30

Na Waiwai Mechanical

Ikaika U'iσb (MPa)	Hua ikaikaσs (MPa)	ʻO ka elongationδ5 (%)	Ka ikehu hopena Akv (J)	Ka emi ʻana o ka ʻāpana ψ (%)	Ka waiwai oolea αkv (J/cm2)	ʻoʻoleʻaHB
≥980(100)	≥785(80)	≥9	≥47	≥40	≥59(6)	≤197

20CrNiMo Alloy Seamless Steel Paipu

ʻO 20CrNiMo ka helu kila mua 8620 ma nā kūlana AISI a me SAE ʻAmelika.ʻO ka hana paʻakikī e like me ke kila 20CrNi.ʻOiai ʻo ka Ni maʻiʻo i loko o ke kila he hapalua ia o 20CrNi kila, ma muli o ka hoʻohui ʻana i kahi mea liʻiliʻi o ka mea Mo, ʻo ka ʻaoʻao luna o ka austenite isothermal transformation curve e neʻe i ka ʻākau;a ma muli o ka hoʻonui kūpono o ka Mn maʻiʻo, ʻoi aku ka maikaʻi o ka paʻakikī o kēia kila, a ʻo ka ikaika ʻoi aku ka kiʻekiʻe ma mua o ke kila 20CrNi, a hiki ke hoʻololi i ke kila 12CrNi3 e hana i nā ʻāpana carburized a me nā ʻāpana cyanide e koi ana i ka hana kumu kiʻekiʻe.Hiki iā 20CrNiMo ke kū i kahi mahana ma kahi o nā waiwai piha maikaʻi no ka mea aia ka molybdenum.

Kahua noi

1. Ma kaʻoihana hana, hoʻohana pinepineʻia e hana i nā'āpana e pili ana i ka ukana kiʻekiʻe, ke kaumaha kiʻekiʻe, a me kaʻaʻahu kiʻekiʻe, e like me ke kāhili, nā pahu, nā bearings, etc. ʻO ko lākou ikaika kiʻekiʻe a me ka paʻakikī maikaʻi e hiki ai i kēia mau māhele ke mālama i kahi ola lōʻihi ma nā wahi hana paʻakikī.Eia kekahi, loaʻa iā ia ke kūpaʻa luhi maikaʻi a me ka pale ʻana i ka corrosion, hiki ke pale maikaʻi i ka erosion o ke kaiapuni waho a hōʻoia i ka hana paʻa o nā mea hana.

2. Ma ke kahua o ka hana, hoʻohana nui ʻia kēia kila i ka hana ʻana i nā hale nui e like me nā alahaka a me nā hale kiʻekiʻe ma muli o kona ikaika kiʻekiʻe a me ka ductility maikaʻi.I loko o kēia mau hale, hiki iā lākou ke kū i ke koʻikoʻi nui a me ka haʻalulu, e hōʻoia ana i ka palekana a me ka paʻa o ka hale.

3. Eia kekahi, me ka hoʻomaikaʻi ʻana i ka ʻike kaiapuni, ʻoi aku ka nui o nā noi ma ke kahua o ka mālama ʻana i ke kaiapuni.No ka laʻana, i nā kaʻa ikehu hou, hiki ke hoʻohana ʻia e hana i nā mea koʻikoʻi e like me nā kaʻa a me nā mea hoʻemi, e hāʻawi ana i ka huakaʻi ʻōmaʻomaʻo.He kuleana koʻikoʻi nō hoʻi ia i nā lako palekana kaiapuni e like me ka mālama ʻana i ka wai a me ka mālama ʻana i nā kinoea, e hāʻawi ana i ke kākoʻo ikaika no ka hoʻomaikaʻi ʻana i ka maikaʻi o ke kaiapuni.

Nā kahua noi

1. ʻO nā mea hana koʻikoʻi, e like me nā mea hoʻokele mokulele, nā pahu pahu a me nā ʻāpana kaʻa kaua.

2. Nā mea hoʻopaʻa ikaika kiʻekiʻe a me nā mea hoʻohui.

3. ʻO nā haʻahaʻa haʻahaʻa kiʻekiʻe a me nā bearings.

Hōʻike Hoʻomaʻamaʻa Wela

Ke kinai 850ºC, aila anu;ʻAha 200ºC, hooluolu ea.

Kūlana hoʻouna

ʻO ka lawe ʻana i ka mālama ʻana i ka wela (normalizing, annealing a i ʻole ka wela wela kiʻekiʻe) a i ʻole ke kūlana mālama wela, e hōʻike ʻia ke ʻano o ka lawe ʻana i ka ʻaelike.

Mua: SAE4340 40CrNiMoA Alloy Seamless Steel Paipu

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