EN42J Spring Steel - High carbon annealed steel
EN42J is a 0.70% carbon spring steel grade supplied in the annealed condition. It is a versatile high-carbon material widely used for springs, machine knife blades, and cutting tools, offering good strength, wear resistance, and formability.
At BSS Spring Steel Stock, EN42J is available in annealed sheet and can be cut to customer specifications for precision components.
If you need more information, please call us on 0114 244 0527 option 2.
EN42J spring steel Chemical Composition
EN42J Spring Steel
Carbon: 0.70-0.80%
Manganese: 0.55-0.75%
Phosphorous: 0.05% maximum
Silicon: 0.10-0.40%
Sulphur: 0.05% maximum
EN42J Spring Steel Equivalent grades
CS70
DIN CK75
IS 80C6
SAE/AISI 1074
Key features of EN42J spring steel
- Carbon content: 0.70–0.80%
- Annealed condition for easy forming and cutting
- Excellent spring properties, hardness, and wear resistance
- Supplied in annealed sheet
- Custom cutting available to customer requirements
EN42J spring steel Typical Applications
EN42J is used across engineering, tooling, and manufacturing applications, including:
- Flat springs & precision springs
- Machine knife blades
- Hand tools
- Knives and cutting blades
- Wood saws & agricultural tools
- Shims & precision components
EN42J spring steel Sheet - condition supplied
- Carbon content: 0.70–0.80%
- Annealed condition for easy forming and cutting
- Excellent spring properties, hardness, and wear resistance
- Supplied in annealed sheet
- Custom cutting available to customer requirements
N.B. We do not supply Mill Certificates with orders, we only supply Certificates of Conformity.
Why buy EN42J spring steel from BSS?
- 📦 UK stockholding for fast delivery
- 🛠️ Custom cut-to-size service available
- ✅ ISO9001 certified supplier
- 🔍 Specialist advice for spring steel applications
Contact us
Not available online in full sheets.
Please contact Nicole to find out more.
Off-cuts of this item may be available in Off-Cuts Corner.
+44 114 244 0527 Option 2
Available
Mon – Thurs: 8.30am – 5.00pm
Fri: 8.30am – 3.45pm
Sat – Sun: Closed