Free Machining & Carbon Steels | Mild & Bright Steels | Alloy Steel

Stelstocks Ltd

for more info call: 01384 482 800
We also offer the following specifications and grades
Free Machining Steels 230M07 (Pb) 11SMn(Pb)30 See Standard size charts below
Mild Steels 040A10 070M20 080A15 C10 & C15
Carbon Machining Steels 212A42 212M36 EN8M 46S20
Case Hardening Steels 210M15 EN32M   15SMN13
Medium Carbon Steels 080A42 070M55 080A47 C35 & C45
Carbon Maganese Steels 150M19 150M36 EN14/15  
Alloy Machining Steels 606M36 708A42 SAE8620 16MNCR5

Stock Range

Free Machining Bars in Sulphurised and Leaded Grades can be offered to:-

  • EN 10277 : 2008 - 11SMN(PB)30-37

And Related Standards:

  • DIN 1652 - 9SMN(PB)28-36
  • BS970 PB - 230M07(PB)
  • ASTM - C12L14
For Hot Rolled Bars - EN10087:1999

All materials fully certified and traceable to approved producers.

Crack detection process guarantee on most leaded / free-cutting items.

Bars chamfered and faced. (* Sizes 8mm - 70mm)




Standard Size Charts

ROUNDS - BRIGHT DRAWN 230M07 PB/11SMnPb30
1/8" 4mm 3/16" 5mm 7/32"
6mm 1/4" 7mm 9/32" 5/16"
8mm 3/8" 10mm 13/32" 11mm
7/16" 12mm 1/2" 13mm 17/32"
14mm 9/16" 15mm 5/8" 16mm
.636" 17mm 11/16" 18mm 19mm
3/4" 20mm 13/16" 21mm 27/32"
22mm 7/8" 23mm 15/16" 24mm
25mm 1" 26mm 27mm 28mm
1 1/8" 30mm 1 3/16" 1 1/4" 32mm
1 5/16" 34mm 1 3/8" 35mm 36mm
1 7/16" 1 1/2" 39mm 1 9/16" 40mm
41mm 1 5/8" 1 3/4" 46mm 1 7/8"
1 15/16" 2" 54mm 55mm 2 1/4"
60mm 2 3/8" 2 1/2" 2 5/8" 68mm
2 3/4" 2 7/8" 3" 90mm 100mm
HEXAGONS - BRIGHT DRAWN 230M07 PB/11SMnPb30
5mm 7mm 8mm .375" 10mm
11mm .437" 12mm .500" 13mm
14mm .562" 15mm .600" .625"
16mm 17mm .687" 18mm 19mm
20mm .812" 21mm 22mm .875"
.937" 24mm 25mm 1" 1.010"
27mm 1.100" 1.125" 30mm 1.250"
32mm 1.300" 1.312" 1.375" 35mm
36mm 1.437" 1.480" 38mm 1.500"
41mm 1.625" 1.670" 1.750" 46mm
1.860" 1.875" 50mm 2" 2.050"
60mm 65mm

ROUNDS - BRIGHT DRAWN 23M07/11SMn30
4mm 6mm 1/4" 7mm 5/16"
8mm 3/8" 10mm 11mm 7/16"
12mm 1/2" 14mm 9/16" 15mm
5/8" 16mm 17mm 18mm 3/4"
20mm 22mm 7/8" 23mm 24mm
25mm 1" 27mm 28mm 1 1/8"
30mm 1 1/4" 32mm 1 5/16" 1 3/8"
35mm 1 7/16" 1 1/2" 40mm 1 5/8"
1 3/4" 1 7/8" 50mm 2" 2 1/4"
60mm 2 3/8" 2 1/2" 70mm



Close Tolerance Precision Rolled Rounds

We carry a range of Rounds which can offer attractive cost savings for many machining applications. Material has been produced by the "Kocks Reducing Roll" process and has a close tolerance (typically -0 +.25mm) combined with excellent bar straightness and scale free surface. Size range 22mm - 60mm dia.

For components involving surface removal during processing these products are recommended as a viable cost saving alternative to Drawn Bars.