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Product ID: 68613743

Black Round Steel Bar

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Description

Product Introduction

Black Round Steel Bars are hot-rolled carbon steel round bars with mill scale surface, featuring high strength and superior machinability. Widely used in structural reinforcement, mechanical shaft manufacturing, hardware tool blanks, and general metalworking, they serve as essential raw materials in core industrial applications.

Applications
Construction: Rebar cages, anchor bolts, steel structure connectors
Machinery: Drive shafts, gear blanks, hydraulic rod blanks
Hardware: Screw/nut blanks, stamping die substrates
Automotive: Axle shafts, connecting rods, crankshaft forgings
General Parts: Pins, washers, tool handles

Advantages & Features
▪︎ Cost-Effective: No surface treatment required, reduces procurement costs
▪︎Processing Flexibility: Compatible with turning, milling, forging, heat treatment
▪︎Strength & Toughness: Balanced high yield strength and ductility
▪︎Fast Delivery: Stock available for diameters 10mm~80mm

Functions & Characteristics
▸ Manufacturing: Continuous casting & rolling, grain size 7~8 (ASTM E112)
▸ Surface Quality：Uniform mill scale minimizes machining waste
▸ Testing：Material certificates (chemical composition & mechanical properties)
▸ Certifications：ISO 9001, CE, JIS

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