WKZ002 / IE1006 Mech Properties & Process | WKZ566-2010

This page covers mechanical properties and manufacturing process for Caterpillar IE1006 / 1E1006 plate under mill process scheme WKZ566-2010 (site identity WKZ002). Chemical composition Table 1 and internal-control Table 4 are on the companion chemistry page. WKZ036-2006 is void; execute WKZ566-2010 only.

Mechanical Properties — Transverse (Table 2, WKZ566-2010)

Transverse tensile requirements for 1E1006 / IE1006 plate. Gauge-length selection for 50 mm and 200 mm specimens follows ASTM A6. Yield is evaluated on the lower yield point.

Yield re-test rule from WKZ566-2010: if the first YS result is < 450 MPa, re-testing is not allowed; if YS is in the 450–464 MPa band, one re-test is allowed and finished-product analysis must meet internal control. Inspection sampling for tensile uses quantity 1, sampling method A6, test method A370 (Table 3).

Manufacturing Process Flow and Key Controls

Process flow: EAF → LF → VD → continuous casting → cleaning → billet heating → rolling → surface inspection → cutting / sampling → inspection / warehouse. All plates are edge-sheared in the precision finishing shop before storage. Vacuum: ≤ 66 Pa, hold ≥ 15 min. Slag-free tap: [C] ≤ 0.10%, [P] ≤ 0.008%, 1620–1660 °C. Ladle bake ≥ 900 °C.

Type II controlled rolling: start 1050–1150 °C; stage-II opening ≤ 920 °C; finish rolling 800–860 °C; post-roll cooling per ACC special procedure. Width-multiplying rolling is not allowed. High-pressure descaling is required before roughing, before stage-II opening, and before finishing. Plates with flatness out of limit shall not be salvaged by cold flattening or thermal straightening. Pinch rolls are not used on double-side shears; no chase-stacking on run-out tables; gentle lift/place during transfer.

Surface, Inspection, Marking and Packaging

Surface: no bubbles, scabs, cracks, folds, inclusions, pitting or pressed-in scale. No repair grinding on the plate surface; the better face is the delivery top surface. Scratches ≤ 3 / m², depth ≤ 0.2 mm, length ≤ 5 mm. Pits ≤ 3 / m², irregular pit area ≤ 3 mm², depth ≤ 0.5 mm. Thickness ≥ 30 mm inspected plate-by-plate; < 30 mm may be batched (same heat, thickness and heat treatment; batch ≤ 30 t). Re-tests follow A6 when permitted.

Marking: spray paint only — no steel stamp. Mark manufacturer, size, heat number, grade, batch, date and serial; do not spray “ASTM A6” as the product standard name. Quality certificate technical condition printed as Caterpillar 1E1006, bilingual Chinese/English. Packaging, marking and certificates follow GB/T 247—1997. Caterpillar supply stacks are dedicated; cover the top of the stack; side painting at warehousing is not allowed.

Dimensional / shape / weight tolerances and flatness (≤ 4 mm/m, ≤ 3 waves per 4 m) follow ASTM A6 under the WKZ566-2010 technical conditions. Thickness limit for the scheme is ≤ 100 mm.

Frequently Asked Questions

What mechanical properties apply to WKZ002 / IE1006 under WKZ566-2010?

Transverse YS ≥ 465 MPa, TS ≥ 560 MPa, elongation ≥ 17% (50 mm) or ≥ 15% (200 mm). Gauge choice follows A6; tensile testing follows A370.

What rolling temperatures are required for WKZ002 / IE1006 process control?

Type II CR start 1050–1150 °C, stage-II opening ≤ 920 °C, finish 800–860 °C, then ACC special cooling. These process windows support the Table 2 mechanical package and shape control.

How is vacuum treatment specified in the WKZ002 / IE1006 process document?

After LF, VD must reach vacuum ≤ 66 Pa and hold at least 15 minutes with stable argon stirring. This is mandatory process practice under WKZ566-2010, not an optional add-on.

Are surface repairs allowed on WKZ002 / IE1006 plate?

No. Repair grinding of the plate surface is prohibited. Scratch and pit density/size limits are strict; the better face is designated as the delivery upper surface. Flatness failures cannot be recovered by flattening or hot straightening.

Which inspection standards appear on the WKZ002 / IE1006 mechanical & process page?

Dimensions and sampling follow ASTM A6; tensile testing follows ASTM A370; packaging and certificates follow GB/T 247—1997. Certificates name Caterpillar 1E1006 bilingually.

Where is the chemical composition for WKZ002 / IE1006 documented?

See the companion chemistry page WKZ002 / IE1006 Steel Plate Chemical Composition | WKZ566-2010 for Table 1 and internal-control Table 4. Use both pages together when writing an RFQ.

Ordering Notes

State Caterpillar 1E1006 (IE1006), dimensions, quantity, hot-rolled delivery, transverse tensile to Table 2, surface/no-grind requirement, spray marking (no stamp), bilingual MTC naming Caterpillar 1E1006, and packaging to GB/T 247. Contact Gangsteel for mill production RFQs.