Blued Polished Hardened Spring Steel Strip

Product overview

Hardened heat treated strip is cold rolled raw material processed with professional quenching heat treatment to obtain target hardness and stable elastic performance. We provide two surface crafts as option: blued anti-rust finish or polished descaled bright surface. Different from annealed & semi-soft strip, the finished strip already owns finalized mechanical property, customers can directly punch circlips, springs and elastic fittings without extra heat treatment, greatly shortening production cycle.

Material & Executive Standard

65Mn / 60Si2Mn	GB/T1222-2016
C67S	EN10132-2021
SK85	YB/T5058
40Mn	GB/T711-2017
50#	GB/T699-2015

Same corresponding GB/EN standard for each steel grade; full quenched heat treatment to customized hardness, two optional surfaces: 1.Blued strip: uniform blue oxide anti-rust finish; 2.Polished strip: remove surface oxide layer after quenching for smooth bright polished surface; thickness 0.15~3.0mm, custom slit width available.

Features & Advantages

Custom Hardness via Quenching: Professional heat treatment to reach client specified hardness, stable elastic performance. Dual Surface Selection: Blued anti-rust finish or bright polished finish for different assembly demand. Ready-for-Processing: Direct blanking & forming without secondary heat treatment, save production cost & time. High Elasticity & Wear Resistance: Mature quenching craft ensures good fatigue resistance for elastic parts. Multi-Grade Supply: Complete spring steel grades for diversified elastic component production.

Application

Widely used as direct forming raw material for circlips, flat springs, elastic washers, precision elastic mechanical parts, finished spring components without post heat treatment.