Pressure Equipment Directive (PED) Annex I, Paragraph 4.3 of 2014/68/EU or PED-97/23/EC 7/2 Fastener Products : Studs and Nuts

Certifications 
ISO9001:2015 Scope Design & manufacture of hardware
PED Pressure Equipment Directive Annex 1, Paragraph 4.3 of 2014/68/EU or 97/23/EC 7/2
Scope of PED compliance “Manufacture and distribution of threaded products that include carbon steels, special alloys and coatings, studs, bolts, nuts and flat washers”

Key Stud Products
B7 Studs ANSI ASTM 193-B7 Class 1 Steel with specialty coatings
B7M Studs ANSI ASTM 193-B7M Class 1 Steel post machined with specialty coatings
B8 Studs ANSI ASTM 193-B8 Class 1 Stainless Steel 304 Minimum tensile strength is 75,000 psi
B8M Studs ANSI ASTM 193-B8 Class 1 Stainless Steel 316 Minimum tensile strength is 75,000 psi

B7 Studs METRIC ASTM 193-B7 AISI 4140 Steel with specialty coatings
B7M Studs METRIC ASTM 193-B7M AISI 4140 Steel post machined with specialty coatings
B8 Studs METRIC ASTM 193-B8 DIN ISO 976-1 Stainless Steel SS304 Minimum tensile strength is 70,000 psi.
B8M Studs METRIC ASTM 193-B8M DIN ISO 976-1 Stainless Steel 316 Minimum tensile strength is 70,000 psi.

Additional Products

Nickel Alloy 20, Carpenter® 20, Incoloy® 20 Machined parts, studs and nuts
A194 GRADE 7 Heavy Hex Nuts
A194 GRADE 8 Heavy Hex Nuts
A194 GRADE 8M Heavy Hex Nuts

Offering complete traceability of HEAT CERTS, and 3.1 CERTIFICATE TO ISO 10474.

Description
B7, B7M, B8 and B8M are materials specifically designed for use with high-pressure/high-temperature pipe flanges or other applications where strength and temperature may be a concern.

Stainless steel studs provide excellent protection against rust and corrosion. Used in chemical, food and other industries where corrosion resistance is required.  18-8 provides excellent corrosion resistance. 316 provides better corrosion resistance than 18-8 and is non-magnetic. Nickel Alloy 20 is a super alloy developed for hazardous applications involving sulfuric acid. Its corrosion resistance also finds other uses in the chemical , petrochemical, power generation, food, plastics, synthetic fibers, gasoline, explosives, and solvents. 

Pipe Plugs

Stainless steel 316 pipe plugs and fittings as available in SAE and ASTM standard sizes from stock.

Heavy Hex Nuts

Eisen offers all Heavy Hex Nuts with full traceability for pressure equipment use. Each item is offered with heat-code marking when needed for your project.

A194 2H Heavy Hex Nuts
A194 Grade 7 Heavy Hex Nuts
A194 Grade 7M Heavy Hex Nuts
A194 Grade 8 Heavy Hex Nuts
A194 Grade 8M Heavy Hex Nuts
A194 Grade 8 Strain Hardened Heavy Hex Nuts
A194 Grade 8M Strain Hardened Heavy Hex Nuts

Diameters of studs and nuts manufactured