ASTM A193 B8T Bolt

ASTM Standard Bolt

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A193 Grade B8T Allen Bolt, B8T Grade Flange Head Bolt, SA193 Class 1 B8T Anchor Bolt, Class 1 Grade B8T Hex Bolt, B8T Grade ASME SA193 Eye Bolt, ASTM A193 B8T Hex Head Bolt, B8T Class 1 Stud Bolt, ASME SA193 B8T U Bolt.

In its purest form, the alloy of stainless steel known as 304 does not contain either molybdenum or copper. On the other hand, Grade B8M contains copper and a sizeable quantity of molybdenum. In addition, when compared to the conventional A198 Gr. B8 Allen bolts, the Grade B8M Allen bolts allow for a more extensive range of nitrogen concentrations in their bolts. Although grade ASME SA193 Grade B8 Hex Bolts might have 0.08% carbon, the Stainless Steel grade B8M would have no more than 0.02% carbon by volume at most.

This is just another element that sets them apart. On the market, you may purchase bolts of grade B8 in two different grades. A process described as solution annealing will be carried out on both classes. The B8 Grade Fully threaded rod is frequently put through a strain hardening process to strengthen the material.

About ASTM A193 B8T Bolt

This involves plastically deforming the alloy 304 to stretch it. On the other hand, the mechanical properties of ASTM A193 B8 Class 1 Bolts can be improved by applying treatments such as carbide solution or annealing.

An advantage of this process, the SA193 B8 Threaded Rod, is that it can be used when the materials are heated to high temperatures. Intergranular corrosion is a common phenomenon frequently occurring in stainless steel alloys when high temperatures are present. Solution annealing is a technique that can be utilised to purge the alloy in the production of ASTM A193 B8 Heavy Hex Bolts of any unwanted phases or carbides. If the SA 193 Gr B8T Material is going to be welded, solution annealing is recommended because it reduces the rate of corrosion.

Specification Of ASTM A193 B8T Bolt

Dimensions	ASME B18.2.1, B18.3
Melt Origin	Korea, South America, Japan, East Europe,
Mandatory Requirements	Free from Mercury & Radioactive Contamination
Additional Certifications	PED 97/ 23/ EC Certified, Merkblatt AD 2000 W2 Certified
Certification	Dual Certified As per ASTM & ASME Codes
Additional Requirements	NACE MR0103 / MR0175 / ISO 15156 Compliance
Threads Configuration	ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads

Chemical Composition ASTM A193 B8T Bolt

Element	Chromium	Carbon	Silicon	Phosphorus, max	Manganese	Sulfur, max
B8 Class 2	11.5 - 13.5%	0 - 0.15%	0 - 1.00%	0 - 0.040%	0 - 1.00%	0 - 0.03%

Mechanical Properties ASTM A193 B8T Bolt

Grade	Size	Tensile ksi, min	Yield, ksi, min	Elong, %, min	RA % min	HBW	HRC
B8M Class 2	Up to 3/4	110	95	15	45	321 max	35 max
	7/8 - 1	100	80	20	45
	1-1/8 - 1-1/4	95	65	25	45
	1-3/8 - 1-1/2	90	50	30	45

Dimensions Of ASTM A193 B8T Bolt

Stainless Steel Bolts Dimensions Chart :

Nominal Size or Basic Product Diameter		Full-Size Body Diameter, E		Width Across Flats, F			Width Across Corners, G		Head Height, H Basic			Radius of Fillet, R		Nominal Thread Length for Bolt Lengths, LT
inch	mm	Max	Min	Basic inch	Max	Min	Max	Min	Basic inch	Max	Min	Max	Min	6 in. and Shoter	Over 6 in.
1⁄4	0.25	0.26	0.237	7⁄16	0.438	0.425	0.505	0.484	11⁄64	0.188	0.15	0.03	0.01	0.75	1
5⁄16	0.3125	0.324	0.298	1⁄2	0.5	0.484	0.577	0.552	7⁄32	0.235	0.195	0.03	0.01	0.875	1.125
3⁄8	0.375	0.388	0.36	9⁄16	0.562	0.544	0.65	0.62	1⁄4	0.268	0.226	0.03	0.01	1	1.25
7⁄16	0.4375	0.452	0.421	5⁄8	0.625	0.603	0.722	0.687	19⁄64	0.316	0.272	0.03	0.01	1.125	1.375
1⁄2	0.5	0.515	0.482	3⁄4	0.75	0.725	0.866	0.826	11⁄32	0.364	0.302	0.03	0.01	1.25	1.5
5⁄8	0.625	0.642	0.605	15⁄16	0.938	0.906	1.083	1.033	27⁄64	0.444	0.378	0.06	0.02	1.5	1.75
3⁄4	0.75	0.768	0.729	11⁄8	1.125	1.088	1.299	1.24	1⁄2	0.524	0.455	0.06	0.02	1.75	2
7⁄8	0.875	0.895	0.852	1 5⁄16	1.312	1.269	1.516	1.447	37⁄64	0.604	0.531	0.06	0.02	2	2.25
1	1	1.022	0.976	1 1⁄2	1.5	1.45	1.732	1.653	43⁄64	0.7	0.591	0.09	0.03	2.25	2.5
1 1⁄8	1.125	1.149	1.098	1 11⁄16	1.688	1.631	1.949	1.859	3⁄4	0.78	0.658	0.09	0.03	2.5	2.75
1 1⁄4	1.25	1.277	1.223	1 7⁄8	1.875	1.812	2.165	2.066	27⁄32	0.876	0.749	0.09	0.03	2.75	3
1 3⁄8	1.375	1.404	1.345	2 1⁄16	2.062	1.994	2.382	2.273	29⁄32	0.94	0.81	0.09	0.03	3	3.25
1 1⁄2	1.5	1.531	1.47	2 1⁄4	2.25	2.175	2.598	2.48	1	1.036	0.902	0.09	0.03	3.25	3.5
1 5⁄8	1.625	1.658	1.591	2 7⁄16	2.438	2.356	2.815	2.616	1 3⁄32	1.116	0.978	0.09	0.03	3.5	3.75
1 3⁄4	1.75	1.785	1.716	2 5⁄8	2.625	2.538	3.031	2.893	1 5⁄32	1.196	1.054	0.12	0.04	3.75	4
1 7⁄8	1.875	1.912	1.839	2 13⁄16	2.812	2.719	3.248	3.099	1 1⁄4	1.276	1.13	0.12	0.04	4	4.25
2	2	2.039	1.964	3	3	2.9	3.464	3.306	1 11⁄32	1.388	1.175	0.12	0.04	4.25	4.5
2 1⁄4	2.25	2.305	2.214	3 3⁄8	3.375	3.262	3.897	3.719	1 1⁄2	1.548	1.327	0.19	0.06	4.75	5
2 1⁄2	2.5	2.559	2.461	3 3⁄4	3.75	3.625	4.33	4.133	1 21⁄32	1.708	1.479	0.19	0.06	5.25	5.5
2 3⁄4	2.75	2.827	2.711	4 1⁄8	4.125	3.988	4.763	4.546	1 13⁄16	1.869	1.632	0.19	0.06	5.75	6
3	3	3.081	2.961	4 1⁄2	4.5	4.35	5.196	4.959	2	2.06	1.815	0.19	0.06	6.25	6.5
3 1⁄4	3.25	3.335	3.21	4 7⁄8	4.875	4.712	5.629	5.372	2 3⁄16	2.251	1.936	0.19	0.06	6.75	7
3 1⁄2	3.5	3.589	3.461	5 1⁄4	5.25	5.075	6.062	5.786	2 5⁄16	2.38	2.057	0.19	0.06	7.25	7.5
3 3⁄4	3.75	3.858	3.726	5 5⁄8	5.625	5.437	6.495	6.198	2 1⁄2	2.572	2.241	0.19	0.06	7.75	8
4	4	4.111	3.975	6	6	5.8	6.928	6.612	2 11⁄16	2.764	2.424	0.19	0.06	8.25	8.5

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