China ASME B18.2.1 UNC Hex Bolt Grade 5 Black Oxide Inch Size 1 / 2-13 ndị na-emepụta na ndị na-ebubata

ASME B18.2.1 UNC Hex Bolt Ọkwa 5 Black Oxide Inch nha 1/2-13

Nkọwa dị mkpirikpi:

Ọkọlọtọ: ASME B18.2.1

Aha ngwaahịa: UNC Hex Head Bolt Black Oxide

Isi Okwu: ASME B18.2.1, UNC, A307

Nha: 1/4 ″-2″

Ihe: 10B21, 35K, 45 # ígwè

Ọkwa siri ike: Ọkwa 5, klaasị 8

Ọgwụgwọ n'elu: Black Oxide

Ogologo eriri: eri zuru oke/Ọkara eriri

Ụdị eriri: Ọ dị oke njọ/dị mma

Nkwakọ ngwaahịa: Katọn/Pallet

Atụmatụ ndị ọzọ: Nye akara isi ahaziri ahazi

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Dia/d		1/4	5/16	3/8	7/16	1/2	5/8	3/4	7/8	1	1-1/8	1-1/4	1-3/8	1-1/2
PP	UNC	20	18	16	14	13	11	10	9	8	7	7	6	6
	UNF	28	24	24	20	20	18	16	14	12	12	12	12	12
	8-UN	-	-	-	-	-	-	-	-	-	8	8	8	8
d_s	max	0.26	0,324	0,388	0,452	0,515	0,642	0,768	0,895	1.022	1.149	1.277	1.404	1.531
d_s	min	0,237	0,298	0.36	0,421	0,482	0,605	0,729	0,852	0,976	1.098	1.223	1.345	1.47
s	max	0,438	0.5	0,562	0,625	0.75	0,938	1.125	1.312	1.5	1.688	1.875	2.062	2.25
s	min	0,425	0,484	0,544	0,603	0,725	0,906	1.088	1.269	1.45	1.631	1.812	1.994	2.175
e	max	0,505	0,577	0.65	0,722	0,866	1.083	1.299	1.516	1.732	1,949	2.165	2.382	2.598
e	min	0,484	0,552	0.62	0,687	0,826	1.033	1.24	1.447	1.653	1.859	2.066	2.273	2.48
k	max	0.188	0,235	0,268	0,316	0,364	0,444	0,524	0.604	0.7	0.78	0,876	0.94	1.036
k	min	0.15	0.195	0.226	0,272	0,302	0,378	0,455	0,531	0,591	0,658	0,749	0.81	0,902
r	max	0.03	0.03	0.03	0.03	0.03	0.06	0.06	0.06	0.09	0.09	0.09	0.09	0.09
r	min	0.01	0.01	0.01	0.01	0.01	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03
b	L≤6	0.75	0,875	1	1.125	1.25	1.5	1.75	2	2.25	2.5	2.75	3	3.25
b	L＞6	1	1.125	1.25	1.375	1.5	1.75	2	2.25	2.5	2.75	3	3.25	3.5

Dia/d		1-5/8	1-3/4	1-7/8	2	2-1/4	2-1/2	2-3/4	3	3-1/4	3-1/2	3-3/4	4
PP	UNC	-	5	-	4-1/2	4-1/2	4	4	4	4	4	4	4
	UNF	-	-	-	-	-	-	-	-	-	-	-	-
	8-UN	8	8	8	8	8	8	8	8	8	8	8	8
d_s	max	1.658	1.785	1.912	2.039	2.305	2.559	2.827	3.081	3.335	3,589	3,858	4.111
d_s	min	1.591	1.716	1,839	1.964	2.214	2.461	2.711	2.961	3.21	3,461	3.726	3,975
s	max	2.438	2.625	2.812	3	3,375	3.75	4.125	4.5	4,875	5.25	5,625	6
s	min	2.356	2.538	2.719	2.9	3.262	3.625	3,988	4.35	4.712	5.075	5,437	5.8
e	max	2.815	3.031	3.248	3.464	3,897	4.33	4,763	5.196	5,629	6.062	6,495	6,928
e	min	2.616	2,893	3.099	3.306	3.719	4.133	4.546	4,959	5,372	5,786	6.198	6.612
k	max	1.116	1.196	1.276	1.388	1.548	1.708	1.869	2.06	2.251	2.38	2.572	2.764
k	min	0,978	1.054	1.13	1.175	1.327	1,479	1.632	1.815	1,936	2.057	2.241	2.424
r	max	0.09	0.12	0.12	0.12	0.19	0.19	0.19	0.19	0.19	0.19	0.19	0.19
r	min	0.03	0.04	0.04	0.04	0.06	0.06	0.06	0.06	0.06	0.06	0.06	0.06
b	L≤6	3.5	3.75	4	4.25	4.75	5.25	5.75	6.25	6.75	7.25	7.75	8.25
b	L＞6	3.75	4	4.25	4.5	5	5.5	6	6.5	7	7.5	8	8.5

Nkọwa nkọwa

Kedu ihe "UNC" pụtara?

UNC na-ezo aka na eri siri ike na usoro United States jikọtara ọnụ nke UN (nhọrọ mpụta eriri mgbọrọgwụ radius).

Kedu ihe bụ ọgwụgwọ elu Black Oxide?

Black oxide, ụzọ a na-ejikarị agwọ elu kemịkal. Black oxide bụ usoro a na-ahụkarị maka ọgwụgwọ elu kemịkal. Ụkpụrụ bụ ịmepụta ihe nkiri oxide n'elu ígwè iji kewapụ ikuku ma nweta nzube nke mgbochi nchara. Mgbe ọdịdị ọdịdị ahụ adịghị elu, a pụrụ iji blackening mee ihe, na elu nke akụkụ ígwè na-agba oji, nke a na-akpọkwa acha anụnụ anụnụ.

Ụzọ ndị a na-ejikarị agwọ ọrịa oxide ojii gụnyere oji oji na-ekpo ọkụ alkaline na ime ụlọ okpomọkụ nke na-eme emechaa. Otú ọ dị, usoro ịgba oji na ụlọ okpomọkụ adịghị arụ ọrụ nke ọma maka obere carbon ígwè. A na-ekewa alkaline blackening, na e nwere ọdịiche dị n'etiti otu ugboro na-agbaji na ugboro abụọ. Ihe ndị bụ isi na mmiri na-agbaji bụ sodium hydroxide na sodium nitrite. Ọdịiche okpomọkụ a chọrọ maka ịcha ojii adịghị nnukwu, na enwere ike nweta ezigbo elu n'etiti 135-155 Celsius C, mana oge achọrọ dị ntakịrị.