1215 mechanical properties and delivery state

1215 Mechanical Properties
    1215 cutting steel tensile strength σb (MPa): (hot rolled) 390 to 540;
1215 free cutting steel (cold-drawn) steel thickness or diameter of 8 to 20 hours: 530 to 755;> 20 to 30: 510 to 735;> 30: 490

~ 685
1215 free cutting steel elongation δ5 (%):
(Hot-rolled) ≥ 22;
(Cold rolled) ≥ 7.0,
The 1215 cutting steel surface shrinkage ψ (%):
(Hot rolled) ≥ 36

1215 cutting steel Delivery Status
Steel mills factory direct delivery, also known as hot-rolled steel round steel black rod.
1215 free cutting steel, cold-drawn light bar: up to 160 ~ 190HB hardness, eliminating the need for heat treatment costs can be directly processed.
Polished bar: the roughness of the surface finish of plus or minus 0.05

1215 advantages
1215 free-cutting steel high sulfur content, good cutting performance, high plasticity, higher strength.
1215 cutting steel products have the following advantages:
a. shape specifications diversity: by design the different shapes of the mold, cold pull out the different cross-sectional shapes, different specification tolerances Yi

Cutting steel. The angle can be a straight angle or rounded.
b. precision: Use high-quality carbide die to ensure accurate tolerance, unity.
c smooth surface: advanced cold extrusion process makes cutting steel surface is smooth and bright.
e. material save a lot: cold drawing process deformation cold extrusion of raw materials to achieve the desired shape, specifications and tolerances, raw materials

Depletion of very small, relative to the use of conventional lathe machining cutting the depletion of material, material and time savings by cutting steel non-

Often considerable, especially when a large amount of material, the material cost savings is more significant.
f. saves processing time and processing machinery: precision, surface condition, free cutting steel products can be used directly,

Such as spraying, sand, bending, drilling, according to the actual requirements of finely drawn after direct plating eliminates the need for a large number of machining time and section

Province configure the cost of processing machinery.

1215 cutting steel products are widely used:
Mainly used for automatic cutting machining fasteners and standard parts, such as stud bolts, screws, nuts, pipe fittings, spring seat

And so on.
a mechanical device: woodworking machinery, ceramic machinery, paper machinery, glass machinery, food machinery, construction machinery, plastic machine

Machinery, textile machinery, jacks, hydraulic machine;
b. appliances products parts: the motor shaft, fan shaft, sewing machine shaft, etc.;
c. Furniture: in particular, the export of metal furniture, such as coffee table, chairs, outdoor furniture;
d metal utensils: garden tools, BBQ rack, screwdriver, anti-theft locks, etc.;
e Hardware components: such as rail, machine keys, nuts, screws, nails, hex nail, octagonal nails as well as a variety of different specifications

Standard parts, etc.;
f automobile, motorcycle spare parts.