SP781B Low Carbon — Cold Rolled / Hot Rolled Steel

Coatings: Galvannealed

Material Type

Cold Rolled / Hot Rolled

Grade

Low Carbon

Available Coatings

Galvannealed

Standard

Other International Standards

DIN EN 10346, JIS G 3302/3313, and other international steel standards cover European and Japanese specification systems for flat-rolled and coated steel products. Ameristeel supplies these international grades — including galvanized, galvanneal, aluminized, and electrogalvanized coatings on cold rolled and hot rolled substrates — for manufacturers building to European or Japanese OEM specifications. Available in coils, sheets, and cut-to-length blanks from our Fraser, MI service center, with full traceability and certification to the originating standard. Whether you need DIN or JIS grades for prototype validation or production stamping, request a quote for international-spec steel delivered throughout Metro Detroit and Southeast Michigan

About SP781B

SP781B is a low carbon grade cold rolled / hot rolled steel conforming to the other international standards. Under the European standard, this designation is SP781 specification with tailored mechanical property requirements.

Ameristeel maintains a deep inventory of SP781B in standard and custom gauges, available as coils, slit coils, sheets, or precision blanks. As a cold rolled / hot rolled product, SP781B offers the tight thickness tolerances and controlled surface finish critical for visible and semi-exposed automotive applications. Every coil is third-party tested under our ISO 9001:2015 quality system.

SP781B is supplied with the following coating options: galvanneal (zinc-iron alloy) for superior paint adhesion and weldability. The right coating choice for SP781B depends on your forming process, paint system, and end-use corrosion environment.

SP781B is listed alongside JAH440W and SP783B within this specification family. As a low carbon designation, SP781B addresses specific cold rolled / hot rolled forming requirements that distinguish it from adjacent grades in ductility, surface quality, and mechanical property control.

SP781B is widely used across automotive body panels, appliance housings, furniture manufacturing, and precision-formed industrial components. Ameristeel sources and stocks this grade at our Fraser, MI steel processing center, with the ability to supply production quantities, prototype runs, and custom-processed orders. Whether you need full coils, slit-to-width coils, cut-to-length sheets, or precision blanks, our team can fulfill orders to SP781B specifications with complete mill test reports and material certification.

Ameristeel offers in-house processing for SP781B at our Warren and Fraser, Michigan facilities. Available processing capabilities include precision slitting to custom widths on our multi-cut blanking line, cut-to-length sheet processing for exact dimensional requirements, laser cutting for complex profiles and prototypes on our TRUMPF fiber laser systems, press brake forming on our TruBend series with up to 110-ton capacity and 120" bend length, shear processing for rapid sheet production. From raw material sourcing through finished part delivery, Ameristeel provides a single-source solution — eliminating the need to coordinate between separate steel suppliers, service centers, and fabrication shops. Learn more about our laser cutting capabilities, production steel sales, or request a quote for processing SP781B to your exact specifications.