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{"title":"High Tensile ASTM A490 Hex Head Bolt Structural Fastener For Industry","imgUrl":"https:\/\/img.chinax.com\/nimg\/ac\/f0\/b01ee59d8c34f1efa87bd81c8392-200x200-1\/high_tensile_astm_a490_hex_head_bolt_structural_fastener_for_industry.jpg","attrs":{"Brand Name":"YOKELINK","Place of Origin":"China","Minimum Order Quantity":"1000","Price":"USD0.5~USD3.9"}}
{"title":"Sujetador de estructura ASTM A490 Perno hexagonal pesado de alta resistencia","imgUrl":"https:\/\/img.chinax.com\/nimg\/96\/7a\/9dcb2c76925753d5f08275e8978e-200x200-1\/sujetador_de_estructura_astm_a490_perno_hexagonal_pesado_de_alta_resistencia.jpg","attrs":{"Brand Name":"YOKELINK","Place of Origin":"China","Minimum Order Quantity":"1000","Price":"USD0.5~USD3.9"}}
{"title":"Pernos galvanizados en inmersi\u00f3n caliente del grado A490 de ASTM para el","imgUrl":"https:\/\/img.chinax.com\/nimg\/ac\/f0\/b01ee59d8c34f1efa87bd81c8392-200x200-1\/pernos_galvanizados_en_inmersi_c3_b3n_caliente_del_grado_a490_de_astm_para_el_edificio_de_la_industria.jpg","attrs":{"Brand Name":"YOKELINK","Place of Origin":"China","Minimum Order Quantity":"1000","Price":"USD0.5~USD3.9"}}
{"title":"BS EN 14399-4 HV 10.9 High-strength Structural Bolting Assemblies","imgUrl":"https:\/\/img.chinax.com\/nimg\/94\/49\/7292c2e29cc63a2f436353c6d55d-200x200-1\/bs_en_14399_4_hv_10_9_high_strength_structural_bolting_assemblies.jpg","attrs":{"Brand Name":"Yokelink","Model Number":"EN14399 DIN6914 ISO7412 DIN7990","Certification":"ISO 9001","Place of Origin":"China"}}
{"title":"DIN EN 14399 10.9 High-strength Structural Bolting Assemblies for Preloading","imgUrl":"https:\/\/img.chinax.com\/nimg\/68\/fd\/742f1959b82d7f17f39724ba4855-200x200-1\/din_en_14399_10_9_high_strength_structural_bolting_assemblies_for_preloading.jpg","attrs":{"Brand Name":"Yokelink","Model Number":"EN14399 DIN6914 ISO7412 DIN7990","Certification":"ISO 9001","Place of Origin":"China"}}
{"title":"DIN 6914 EN 14399-3 EN 14399-4 High Strength Friction Pre-load HV Bolt 10.9","imgUrl":"https:\/\/img.chinax.com\/nimg\/b5\/43\/f83e66f64e68b375a18310feff8e-200x200-1\/din_6914_en_14399_3_en_14399_4_high_strength_friction_pre_load_hv_bolt_10_9_structure_fastener.jpg","attrs":{"Brand Name":"Yokelink","Model Number":"EN14399 DIN6914 ISO7412 DIN7990","Certification":"ISO 9001","Place of Origin":"China"}}
Yokelink ASTM A193 Grade B8 is a standard material specification for corosion resistant austenitic stainless steel fasteners, for use in high tensile high temperature and special purpose applications such as pressure piping & pressure vessels bolting. Grade B8 is a heat-treated, work hardened (or both) austenitic stainless steel further divided into class 1, class 2 & class 2B, each having a distinguished tensile strength ASTM A193 specification covers requirements for chemical composition, mechanical properies, hardness, heat-treatment and recommended nuts-washers for Grade B8 Fasteners.
A 193 B8 Heavy Hex Bolt Materials and Chemical Composition
Basic material: AISI 304 or 304L stainless steel (corresponding to UNS S30400/S30403), belonging to 18-8 type austenitic stainless steel 138.
Chemical composition:
A 193 B8 Heavy Hex Bolt Heat treatment and mechanical properties
Heat treatment process:
Solution annealing (Carbide Solution Treatment): Heating to 1100-1200°C and then cooling rapidly (such as water quenching) to dissolve carbides to improve corrosion resistance18.
Strain hardening (Strain Hardening): Class 2 and 2B increase strength through cold working or cold deformation to reduce the risk of bonding158.
Class 2B: For larger diameters (e.g., ≤ 2 inches), the tensile strength is gradually reduced to 80 ksi (550 MPa), but the toughness is maintained at a high level8.
A 193 B8 Heavy Hex BoltProduct form and specifications
Type: covers bolts, studs, nuts, threaded rods, hexagonal head bolts, etc., supporting metric (M10-M110) and imperial (1/2"-4") sizes17.
Thread standards: including UNC, UNF, BSW, NPT, etc., to meet different connection requirements17.
Surface treatment: optional galvanizing, Dacromet, PTFE coating, passivation, etc., to enhance corrosion resistance or adaptability to specific environments
Buy A 193 B8 Heavy Hex Bolt From Yokelink
Yokelink as a trusted fastening solution expert in the global industrial field, we focus on precision manufacturing and innovative technology to create high-performance fastener products that are suitable for all scenarios. From high-temperature and high-pressure petrochemical plants to deep-sea energy platforms, from precision medical equipment to new energy infrastructure, our products are represented by the ASTM A193 B8 series, covering Class 1 (standard corrosion resistance), Class 2 (high-strength hardening) and Class 2B (super-large specification toughness optimization) grades, meeting the requirements of extreme working conditions from -200°C to 800°C.
Relying on the ISO 9001 quality system and full-process testing (hardness, tensile, salt spray testing), every bolt and nut is precisely up to standard. Supporting metric/imperial specifications, non-standard customization, and 72-hour fast delivery, we provide global customers with the peace of mind of "zero-hazard connection".
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
2011
Total Annual:
3 million-4 million
Employee Number:
20~50
Ecer Certification：
Site Member
Since 2011, Yokelink has became a professional supplier of Industrial Fastener and Poleline Hardware. We are specializing in supplying a wide range of products to several industry through Utility & Engineering complies and distributors serving overseas markets. We produce...
Since 2011, Yokelink has became a professional supplier of Industrial Fastener and Poleline Hardware. We are specializing in supplying a wide range of products to several industry through Utility & Engineering complies and distributors serving overseas markets. We produce...
