IFI-1541/A ลวดเหล็กสำหรับการขึ้นรูปเย็น

ASTM F2282-23 Table 4 names the permitted steelmaking practices; Table 6 gives Si 0.15–0.30% for the Si-killed fine/coarse-grain practices of these grades. IFI-1541/B also lists CgP; the order must identify the actual deoxidation practice before a Si limit is applied to that option.

ASTM F2282-23 Table 4 steelmaking practices for this grade: SiFg. SiFg = silicon-killed fine grain; SiCg = silicon-killed coarse grain; CgP = coarse-grain practice. These are not equivalence claims.

ASTM F2282-23 Table 11: maximum tensile strength in ksi and minimum reduction of area (R/A) in percent. Material condition and product form determine the applicable column.

Table 11 footnote A: for aluminium-killed steel subtract 3 ksi and add 1 percentage point R/A; for rimmed steel subtract 5 ksi and add 2 percentage points R/A.

For AIP and SAIP wire below 0.200 in., Table 11 footnote A adds 50 psi for every 0.001 in. below 0.200 in.; apply only to those two columns.

Table 11 Note 1: R/A testing does not apply to wire below 0.092 in. These tabulated limits are not a mill certificate or order-specific acceptance decision.

ASTM F2282-23 section 6.5 also requires the residual-element limits in Table 9. Table 4 does not repeat those limits in each grade row; this page is not a substitute for the complete ordered specification.