TNUK Ltd logo


Home > Distribution > Ball Products > Low Carbon Steel


Low Carbon Steel Balls (Case Hardened)

Low Carbon Steel Balls (Case Hardened)

These balls have an intrinsically low carbon content so they're relatively soft and flexible.

By case hardening, we're able to increase the rigidity of the external surface to produce a product that's both tough and tensile.


Case hardened Low Carbon Steel balls are very cost-effective and the combination of a hard, carburised case and soft core gives them superb resistance to shock loads; the flexible core delivers outstanding load bearing while the hard case shrugs off surface wear.

Use Cases

You'll find them used in castors and conveyors, and anywhere that requires non-precision bearings, from baggage handling and sliding walls to scales and drawer runners.

International Equivalents

AISI 1010, JIS SWRM 12, EN32 ASTM A/29, Wks 1.0010

C0.10 - 0.15%
Mn0.30 - 0.60%
P0.045% Max
S0.045% Max
Si0.10 - 0.40% Max
Size Range
1.588mm (1/16") to 12.700mm (1/2")
HRc60 min
Mechanical Properties
Tensile Strength53,000 psi
Yield Strength44,000 psi
Density0.284 lbs/cu in
Standard Grades Available
Ball DiameterCase Depth
1.5mm - 2.0mm0.4mm
2.1mm - 3.0mm0.5mm
3.1mm - 4.5mm0.6mm
4.6mm - 5.5mm0.8mm
5.6mm - 6.5mm0.9mm
6.6mm - 9.5mm1.1mm
9.5mm - 11.0mm1.4mm
11.1mm - 12.5mm1.7mm
12.6mm - 14.0mm1.8mm
14.1mm - 19.0mm1.9mm
19.1mm - 38.0mm2.0mm

Our Quality Guarantee

Accuracy is our trademark at TN UK. We pride ourselves on our ability to measure and calibrate the products we manufacture. Housing some of the most sophisticated equipment in the world, our annually assessed UKAS lab means we guarantee the precision of the products we supply.

On top of that, we maintain regular and open communication directly with you and any relevant departments to ensure that you get exactly what you need when you need it.

We also offer a recalibrate service for your existing gauges, CMM Reference balls and Master Ball Sets. So you can rest assured that, whether we are supplying a new product or recalibrating an existing one, by meeting our strict standards, your company meets its strict standards (particularly important for other calibration assessed companies).



    PDF (594KB)