China 1075 Spring Steel Sheet Supplier

1075 Spring Steel Sheet is a high-carbon steel containing approximately 0.75% carbon, making it an excellent choice where high hardness, good elasticity, and sharp edge retention are required. Compared with medium-carbon spring steels, 1075 develops higher hardness after heat treatment and is widely used for industrial blades, precision springs, scrapers, and wear-resistant components. It is also a popular material for manufacturers requiring consistent performance in cold-formed parts.

Products Description

Item	Details
Product Name	1075 Spring Steel Sheet
Standard	ASTM A684 / SAE J403
Grade	AISI 1075
Thickness	0.3–50 mm
Width	20–2000 mm
Length	Coil, Sheet or Custom Cut
Supply Condition	Cold Rolled, Hot Rolled, Annealed, Blue Tempered
Surface Finish	Bright, Black, Oiled
Processing Service	Slitting, Laser Cutting, Shearing
Payment Terms	T/T, L/C
Trade Terms	FOB, CFR, CIF

Item	Value
Carbon (C)	0.70–0.80%
Manganese (Mn)	0.50–0.80%
Silicon (Si)	0.15–0.35%
Phosphorus (P)	≤0.040%
Sulfur (S)	≤0.050%
Tensile Strength (Heat Treated)	1200–1550 MPa
Hardness (Heat Treated)	48–57 HRC

Product Features

Excellent Edge Retention

Controlled 0.75% carbon delivers stable 50–58 HRC after heat treatment. Minimal surface decarburization prevents rapid blade dulling. Balanced hardness and toughness stop edge chipping during intermittent impact, extending service life of industrial cutters and farm blades compared to 65Mn.

Stable Elasticity with Low Permanent Deformation

Batch hardness controlled within ±2 HRC for consistent spring stiffness under millions of cyclic loads. Resists sagging on precision clips and retaining rings. More cost-effective than alloy spring steel for light/medium-load elastic parts without heavy shock.

Strong Wear Resistance

Dense tempered microstructure reduces surface friction loss. Extend working cycles of sliding mechanical and agricultural elastic parts, supporting longer product warranties for your end customers.

Multiple Supply Conditions for Your Full Production Line

Cold rolled bright sheet: clean matte silver surface for high-precision stamping
Spheroidized annealed sheet: soft, crack-free for laser cutting and complex bending
Blue tempered sheet: pre-hardened anti-rust blue finish, ready for direct forming Custom slitting, fixed-length cutting and tight thickness tolerances are available.