Toolchest · Datasheet

Wire Rope & Rigging Hardware — Dataset Notes

File: accumath-wire-rope-rigging.csv — 120 data rows in three sections, selected by the table column. Compiled: 2026-10-20. All values are published catalog values, copied as printed (units converted only where noted below). Nothing was computed, interpolated, or estimated; no value in this file was derived from another value.

⚠️ Breaking strength is NOT a working load — read this first

• The wire_rope section lists breaking strength: the load at which a new rope is expected to fail in a straight pull test. It is never a permissible working load.
• The sling_capacity and shackles sections list working loads (rated capacity / WLL) — the only numbers in this file that may be used to plan a lift.
• Design factor convention: wire rope sling rated capacities rest on a 5:1 design factor (the sling's breaking strength is five times its rated capacity), per ASME B30.9 practice; the source catalog prints "5 to 1 design factor" on the table itself. Shackles follow a different convention: Crosby prints on its G-209 table that maximum proof load is 2× WLL and minimum ultimate strength is 6× WLL.
• Never compute a WLL from a breaking strength. Splice efficiency, hitch geometry, and inspection/retirement criteria all sit between the two numbers, and they are already baked into the published rated capacities. Use the published working-load tables as printed.

Section 1 — wire_rope (90 rows)

Content: nominal diameter 1/4 in through 2 in (18 sizes; size_in is decimal inches — 0.25 = 1/4, 0.3125 = 5/16, 0.5625 = 9/16, etc.), in five series of 18 rows each:

Construction	Core	Grade	Rows
6×19 class	IWRC	IPS	18
6×19 class	IWRC	EIPS	18
6×36 class	IWRC	IPS	18
6×36 class	IWRC	EIPS	18
6×19 class	Fiber core (FC)	IPS	18

Columns: breaking_strength_tons = published nominal/minimum breaking strength in short tons of 2,000 lb; approx_weight_lb_per_ft = approximate mass in lb/ft.

Sources: Hanes Supply, Wire Rope 101 catalog tables (headed "Nominal Strength (Tons) — Bright or Drawn Galvanized"), corroborated cell-for-cell against Nelson Wire Rope, 2020 Product Catalog, p. 6 ("Minimum Breaking Force, tons of 2,000 lbs."). The two sources publish identical values over the full range. The fiber-core IPS series comes from the same Hanes table (Nelson's catalog does not publish a fiber-core table); its values also agree with the fiber-core nominal strengths in the Wire Rope Users Manual tradition (RR-W-410 nominal strengths).

Class note: both publishers group the classes. Nelson prints one combined table headed "6×19 Class IWRC / 6×36 Class IWRC" with a single set of values; Hanes prints separate 6×19-classification and 6×37-classification tables whose values are identical across the 1/4–2 in range (the 6×36 Warrington-Seale construction sits in the 6×37 classification). The dataset therefore carries the same published values under both the 6×19 class and 6×36 class labels, exactly as the sources present them.

Publisher's footnotes (Hanes, carried here because they qualify the numbers): - Acceptance strength is not less than 2½% below the nominal strengths listed. - For Class A galvanized wire rope (EIPS and IPS grades only), deduct 10% from the nominal strength shown.

Section 2 — shackles (17 rows)

Content: Crosby G-209 / S-209 screw-pin anchor shackles, nominal sizes 3/16 in through 2-1/2 in.

Columns: - size_in / body_diameter_in — Crosby's nominal size; a G-209 is sized by its body diameter, so the two are the same number. - pin_diameter_in — Crosby dimension B of the catalog table. - inside_width_at_pin_in — Crosby dimension A (inside width at the pin/jaw). - inside_width_at_bow_in — Crosby dimension E (inside width at the bow). - wll_tons — working load limit in metric tons, as Crosby publishes it (the table's "(t)*" convention). The smallest size is published as 1/3 t and is entered as 0.33.

Source: Crosby's own site did not yield the table directly during compilation; the values are Crosby's published G-209/S-209 catalog table as reproduced in the Crosby spec sheet hosted by Ferguson and in Lift-It Manufacturing's catalog pages, cross-checked against two further reproductions (a UK Crosby listing and SI Power International). WLL and the reported dimensions agree across all reproductions; where reproductions disagreed on secondary dimensions not used here (e.g., lengths M/N, unit weights), those columns were dropped rather than adjudicated.

Crosby's printed notes on the table: "Maximum Proof Load is 2 times Work Load Limit. Minimum Ultimate Strength is 6 times Work Load Limit." Shackles are drop forged, quenched and tempered, with alloy pins.

Section 3 — sling_capacity (13 rows)

Content: single-leg wire rope slings, mechanical (Flemish eye) splice, 6×19/6×36 class, IWRC, EIPS — rated capacities in short tons of 2,000 lb for vertical, choker, and basket (90°) hitches.

Source: Nelson Wire Rope, 2020 Product Catalog, p. 18 (table headed "IWRC EIPS 6×19 & 6×37 Class," Flemish eye splice; the page prints a 5:1 design factor). These are manufacturer-published rated capacities consistent with ASME B30.9 practice — no ASME B30 document was copied; only the manufacturer's catalog table was used.

Gap: Nelson's table lists only 13 diameters — it omits 5/16, 7/16, and 9/16 in. Those rows are absent rather than interpolated.

Known gaps and variances

1. EEIPS (XXIP) grade excluded — both rope sources publish it, but it is outside the requested scope.
2. Fiber core published for 6×19 class only in scope. Hanes publishes fiber-core values for the 6×36/6×37 classification as well, and fiber-core EIPS; only the requested 6×19 FC IPS series is included.
3. 5/8 in IPS IWRC breaking strength: 17.9 tons in both sources used (Hanes; Nelson 2020). An older generic distributor catalog prints 17.7 for this cell. The modern manufacturer/distributor value (17.9) was used and the variance is recorded here rather than averaged.
4. Shackle WLL units: metric tons, as Crosby publishes. Do not read them as short tons.
5. Sling diameters 5/16, 7/16, 9/16: not published in the source table; omitted (see Section 3).

Method / legality note

Values are factual data taken from openly published manufacturer and distributor catalog tables (Hanes Supply; Nelson Wire Rope; Crosby via its spec-sheet reproductions), restructured into this file's own schema with the source named on every row. No standards document (ASME B30, RR-W-410, ASTM A1023) was copied; the standards are referenced only to describe the conventions the manufacturers themselves print.