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100×100×900 R6 Copper Mould Tube: Complete Specification Guide

Buyer's Guide Published 10 October 2026 2 min read 30 views
100×100×900 R6 Copper Mould Tube: Complete Specification Guide

If a steel plant casts 100 mm square billets on an R6000 machine, this is its tube. We produce it continuously and hold it in stock in CuAg, which is why it has its own product page. This article is the long version of that page for buyers who want every detail before ordering.

Specification

ItemSpecification
Cast section100 × 100 mm (3.94 × 3.94 in)
Casting radiusR6000 mm (236.2 in)
Length900 mm (35.4 in); 812 and 1000 mm on request
Wall thickness12 mm standard; 10 mm optional
Copper gradeTP2 / Cu-DHP, CuAg0.1 or CuCrZr
Inner surfaceHard chrome 0.08–0.12 mm; Ni-Cr optional
TaperSingle, double, multi or parabolic, per OEM drawing
Corner radiusR4–R8 mm typical, per drawing
Water coolingPlain outer surface for annular gap, or machined slots per jacket
Weight≈ 37 kg (CuAg, 12 mm wall)

Which copper grade

At 100 × 100 the section is small, the shell forms quickly, and casting speeds are high: 3–4.5 m/min is normal on modern casters. That puts the meniscus copper temperature into the range where Cu-DHP softens, so CuAg0.1 is our default recommendation and the grade we stock. Cu-DHP remains a valid choice for older casters running under 2.5 m/min. CuCrZr is rarely needed at this section unless the plant is running above 4.5 m/min or casting very hot grades.

100x100x900 R6 copper mould tube inner chrome plated surface
Inner surface of a 100 × 100 × 900 R6 tube after plating and polishing.

Taper

Because of the high speed, most 100 × 100 casters use a double or parabolic taper with a steep upper segment. If your caster is from a known OEM, tell us the model; we have taper data for the common designs. Otherwise send the old tube drawing, or give us the casting speed and we propose a profile.

Inspection and documents

Every tube ships with a CMM report (section at five levels, taper, radius, length), wall thickness at eight points, chrome thickness at six points, surface roughness and the copper mill certificate. Photos are taken before packing. Tubes are wrapped in VCI film, boxed individually in plywood cases with foam supports, 4–8 tubes per case depending on your order.

Lead time and packing

CuAg 12 mm wall with our standard double taper: from stock or 2–3 weeks. Other grades, tapers or slot patterns: 4–5 weeks after drawing approval. Air freight is practical for urgent orders; a case of four tubes weighs about 170 kg.

What to send for a quotation

  1. Confirmation of 100 × 100 × 900 R6000 (or the marking on the old tube)
  2. Wall thickness and copper grade, or "please advise" with the casting speed
  3. Taper: OEM drawing, values, or the OEM name and model
  4. Plating requirement
  5. Quantity and destination port

Frequently asked questions

Do you have 100 × 100 × 900 R6 in stock?

CuAg, 12 mm wall, standard double taper: usually yes. Ask for current stock.

What about 100 × 100 × 812 mm?

812 mm (32 in) is common on older casters; same price, 3–4 weeks.

Can you match my OEM drawing exactly?

Yes; we manufacture to the drawing and the CMM report is against the drawing dimensions.

Need this size? Send section, radius, length, wall thickness, copper grade and quantity — we reply with price, weight and lead time within one working day.Get price

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