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Cost-Effective Milled Steel Fibre for Industrial Floors

Milled type steel fiber is made of high strength steel wire milling process, and the high performance fiber product with the anchoring end and a rough surface is formed at both ends.
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  • XRT-SMI

  • xinrui-te


mill-cut steel fibre

Milled Steel  Fibre Product Overview

Our Xinrui-Te Milled Steel Fiber is a mechanically processed, chopped steel fiber. We mill steel billets or blocks into a milled shape with a rough, textured surface so the fibers lock into the surrounding concrete. It’s designed specifically to improve concrete’s crack resistance, toughness, impact resistance, and post-crack performance.

Unlike other steel fibers, milled fibers bond through their unique surface profile and geometry—mechanical interlock rather than just end anchorage. In pull-out tests, milled steel fibers show a bond strength of about 3.52 MPa with the concrete matrix. They’re available in different lengths, diameters, and strengths, and they disperse well during mixing. That makes them suitable for industrial floors, pavements, precast concrete, shotcrete, and similar applications.

   

High-Strength Milling Steel Fiber


 Recommended dosage ranges for common application areas

◆Road surfaces & airport runways (anti-fatigue & wear resistance) 

      20–50 kg/m³ (approx. 0.2%–0.6% by volume)

◆Precast concrete elements (improve toughness & reduce cracks) 

      10–30 kg/m³ (approx. 0.1%–0.35% by volume)

◆ Shotcrete & tunnel linings (enhance early strength & prevent spalling)

       30–60 kg/m³ (approx. 0.3%–0.7% by volume)

◆ High-performance concrete / UHPC (with micro mortar & other additives)

      40–120 kg/m³ (approx. 0.4%–2.0% by volume, subject to design requirements)

◆ Bridges & structural components (anti-crack & ductility reinforcement, partial replacement of transverse steel bars) 

      25–60 kg/m³ (approx. 0.25%–0.7% by volume)

◆Repair & overlay layers (anti-crack & anti-spalling for thin layers)

      20–80 kg/m³ (approx. 0.2%–1.0% by volume; use the upper limit for thin layers)

◆ 3D printed concrete (boost interlayer bonding & fracture toughness)

       5–30 kg/m³ (approx. 0.05%–0.35% by volume, subject to printing technology)

Steel Milled Fibre Technical Specifications

Parameter Specification
Dimensions (L×Φ) 20-60 mm × 0.3-1.2 mm
Aspect Ratio 20-100
Tensile Strength ≥600 MPa
Buckling Resistance ≥3 cycles
Surface Profile Anchoring ends with micro-texturing (h=1.5-2.0mm)

Notes:

1. Fiber count per kg calculated using nominal dimensions (steel density: 7.85 g/cm³).

2. Dimensions and coatings available.

What makes our Steel Milled Fibre stand out?

High anchorage — milled ends with rough texture for superior bond and crack resistance.

Good dispersion — uniform shape, no clumping, easy mixing and placement.

High impact & wear resistance — suppresses microcracks; ideal for roads, floors, tunnels.

Cost-effective production — consistent sizes, cheaper than stainless or shear-wave fibers.

Dispersion Comparison of Milled Steel Fibre by Different Specifications

Dimensions (Length × Diameter) L/D Dispersion Features & Applications
20mm×0.6mm 33.33 PERFECT Non-clumping, low rebound — ideal for shotcrete, thin-walled elements and pumping.
25mm×0.7mm 35.71 PERFECT

Standard grade — floors, repairs, conventional pavements; highest construction compatibility.

30mm×0.8mm 37.5 VERY GOOD Main market sizes — suitable for cast-in-place, precast, and highway pavements.
32mm×0.8mm 40.00 GOOD Heavy-duty floors and bridge decks — mixes fine with normal mixing; pay attention at high dosages.
35mm×0.9mm 38.89 GOOD Erosion/abrasion resistance and structural strengthening — not recommended for long-distance pumping.
40mm×0.9mm 44.44 GENERAL Prone to slight clumping — suitable only for hand mixing / localized casting; pumping prohibited.

RFQ

Q: How do you make sure steel fibers are evenly dispersed in concrete?

A: Don’t use drum-style mixers that just tumble — use a forced-action mixer. The stronger shearing action helps break up fiber clumps. 

     Start by making a uniform paste first, then add the fibers slowly in several batches instead of dumping a whole bag in at once. After 

     the last batch goes in, mix at no less than about 100 rpm for another 2–3 minutes. Use a polycarboxylate (PCE) superplasticizer to 

     keep the mix workable, and if you’re using a high fiber dose, do trial mixes first to confirm the procedure.

Q: Do milled steel fibers affect the slump and pumpability of concrete? And how do you prevent that?

A: Yes, they do. At too high a dosage, the fibers reduce slump and make the mix harder to pump. Here's what you can do to keep      

      things on track: Use chemical admixtures like high-performance PCE superplasticizers or viscosity-modifying agents to hold the 

      slump and workability where you want them; Optimize your aggregate grading, don't allow extra water on site, control the fiber 

       dosage, and add the fibers in stages rather than all at once; Run a trial pump before the actual pumping — it's always safer to test 

       first.

Q: What are our packaging, minimum order quantity (MOQ), lead time, and sample policy?

A: Typical packaging is 25 kg bags/boxes, bulk, or big bags (FIBCs). MOQ depends on the supplier and the product—orders can range 

      from single samples up to tonnage. Lead time is usually 5–15 days depending on stock and order size. Our sample policy: small 

     samples (up to 500 g) are provided free of charge.







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 +86-136-3560-0651
 +86-136-3560-0651
 rose06063
  rose@xinrui-te.com
 No. 1103, 11th Floor, Zhongxin Building, No. 2688 Chuangxin Avenue, High-tech Zone, Hefei City, Anhui Province,China

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