Photo · wire-macro · 1:1
Low carbon · SAE J403
A touch more carbon than 1008 — still very formable, a little stronger.
C1010C4Ø 4 – 19 mm
Why this grade
The extra few points of carbon give a slightly firmer wire for parts that must hold shape after forming, while keeping good cold-heading and carburising response.
Cold-headed fasteners
Carburised pins and small parts
Formed brackets and clips
Chain links
Behaviour
Cold heading5/5
Machinability2/5
Hardenability1/5
Strength potential2/5
Relative comparison across the grades we supply.
Chemistry
C0.08 – 0.13
Mn0.30 – 0.60
S≤ 0.05
P≤ 0.04
Typical ranges per SAE J403. Actual values per mill test certificate.
Properties
MicrostructureFerrite + small pearlite
Typical tensile (annealed)≈ 320 – 400 MPa
Case hardeningCan be carburised
How we anneal it
Sub-critical / process anneal
Restores ductility between draws and before heading.
Annealing explainedEnquiries
We come back with availability and a quotation — usually the same working day.