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Tool steel plate grade

1.2738 Precision Tool Steel Plates

Drawing-specific 1.2738 tool steel plates are offered with milled, two-side-ground or eligible E1 six-side-ground faces. The quotation keeps the grade designation, delivery condition and acceptance dimensions explicit.

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Steel plate and blocks with machined faces on a pallet
Drawing-specific plate dimensions

Product-form example. Grade, material condition and supplied configuration follow the approved order.

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Grinding and Milling Options

Each catalog reference carries its selected scope into the quotation form. Finished dimensions, material records and acceptance follow the approved order.

1.2738 Two-Side Ground + Four-Side Milled Plates — model schematic
Model schematic · illustrative geometry
LCD-PL-1.2738-G2

Two-side ground + four-side milled

Precision grinding on two reference faces, with the four remaining faces milled. Thickness and length/width have separate tolerances.

Length / width
±0.10 mm
Thickness
±0.05 mm
Parallelism
0.04 mm / 100 mm between the ground reference faces
Material condition
Confirm the material condition for the order
Size scope
Maximum processing: 1200×800×400 mm; process review required

Finish dimensions and material condition are agreed for the selected grade. Large plates and additional geometric requirements need drawing-specific review.

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1.2738 E1 Six-Side Precision Ground Plates — model schematic
Model schematic · illustrative geometry
LCD-PL-1.2738-E1

E1 six-side precision ground

All six faces precision ground under the published E1 grade, condition and size limits.

Length / width
±0.02 mm
Thickness
±0.02 mm
Parallelism
0.02 mm / 100 mm
Material condition
Pre-hardened
Size scope
L and W each ≤600 mm; T 10–200 mm

Pre-hardened 1.2738 blocks within the E1 envelope: length and width each ≤600 mm; thickness 10–200 mm.

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1.2738 Six-Side Precision Milled Plates — model schematic
Model schematic · illustrative geometry
LCD-PL-1.2738-M6

Six-side precision milled

All six faces precision milled to the agreed finished dimensions. Use the drawing to identify any additional grinding requirements.

Length / width
±0.10 mm
Thickness
±0.10 mm
Parallelism
0.08 mm / 100 mm
Material condition
Confirm the material condition for the order
Size scope
Maximum processing: 1200×800×400 mm; process review required

Finish dimensions and material condition are agreed for the selected grade. Large plates and additional geometric requirements need drawing-specific review.

Full finishing specification →Request this option
Grade and condition limits

E1 for 1.2738 requires pre-hardened condition, length and width each ≤600 mm, and thickness 10–200 mm. The three dimensional tolerances are ±0.02 mm; parallelism is 0.02 mm per 100 mm. Larger sizes, annealed material or additional requirements need separate review.

Grade designations are listed separately; no automatic equivalence or substitution is assumed. Per-100-mm parallelism does not define whole-plate flatness or surface roughness.

Drawing and Quotation Checklist

  • Keep 1.2738 as the material designation in the PO, drawing and requested material record.
  • Confirm pre-hardened condition before selecting E1; another delivery condition requires its own tolerance review.
  • If the blank will be machined again, identify which dimensions are final at delivery and which retain allowance.

Include quantity, drawing revision, required inspection documents and delivery destination. Single-piece and small-batch inquiries are accepted.

Prepare a 1.2738 plate inquiry

Inspection and Production Planning

MTC material documentation, hardness and dimensional inspection reports can be requested. UT reports are available on request with an agreed scope. Regular plate sizes range from 100×100×20 to 800×600×300 mm; maximum processing size is 1200×800×400 mm, subject to grade, condition and finish review. This maximum does not carry the E1 tolerance.

Typical production: 3–7 working days. Working days exclude weekends and statutory public holidays in China. The clock starts on the next working day after formal PO receipt, final drawing/specification approval and applicable deposit receipt are all completed. Transport time is separate.

Inspection and documentation →Compare plate finishing routes →View product photographs →

1.2738 Tool Steel Plate Questions

Is 1.2738 automatically substituted with 718H?

No automatic equivalence or substitution is assumed. Each designation is listed separately, and the material supplied follows the approved drawing, quotation and material documentation.

Which 1.2738 plates qualify for E1 six-side grinding?

The published scope is pre-hardened 1.2738, length and width each ≤600 mm, and thickness 10–200 mm. Larger dimensions or another condition need separately agreed tolerances.

What documents should I request for a 1.2738 plate?

Specify the MTC, hardness report and dimensional inspection report needed for the order. UT reporting is available by request with a defined inspection scope.

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