
Aisi 1045 Steel Cold Drawn
Products Description
aisi 1045 cold drawn steel is a high-quality carbon structural steel. Its hardness is not high, but it is easy to cut and is commonly used as a template, pin, guide pillar, etc. in molds. In order to achieve the required mechanical properties, aisi 1045 steel needs to undergo heat treatment. The recommended heat treatment includes normalizing (850 ℃), quenching (840 ℃), and tempering (600 ℃). After such heat treatment(Q+T), the hardness of 1045 steel can reach HRC55 (up to HRC62), and it has good comprehensive mechanical properties. It is widely used in various important structural parts, especially connecting rods, bolts, gears, and shafts working under alternating loads.
In addition, the specific values of the tensile strength and yield strength of 1045 steel are 600MPa and 355MPa, respectively, with an elongation of 16%, a reduction in area of 40%, and an impact energy of 39J. These performance indicators indicate that 1045 carbon steel has good strength and toughness, and is suitable for various engineering applications.
Equivalent Grade
| AISI / SAE | DIN / W.Nr | JIS | GB |
| 1045 | CK45 C45E 1.1191 | S45C | 45# |
Chemical Composition(%)
| Steel Grade | C | Si | Mn | P | S | Cr | Ni |
| 1045 | 0.43-0.50 | ≤ 0.40 | 0.60-0.90 | ≤ 0.040 | ≤ 0.050 | ≤ 0.05 | ≤ 0.20 |
aisi 1045 Cold Drawn Steel Bar Processing:
EAF + LF + VD + CONCASTING BILLETS + HOT ROLLED + SHOT BLASTING +(ANNEALING) + COLD DRAWN + OILING + BUNDLING + BOTH ENDS CUTTING+ PACKING + MARKING

Tolerance and properties of aisi 1045 cold drawn steel bars
| Hot Rolled | Cold Drawn | Turned & Polished | Turned, Ground & Polished | Drawn, Ground & Polished | |
| Diameter | +/- 0.008" | +/- 0.001" | +/- 0.001" | +/- 0.0002" | +/- 0.0002" |
| Straightness | 0.050" Max Per Foot | 0.005" Max Per Foot | 0.005" Max Per Foot | 0.005" Max Per Foot | 0.005" Max Per Foot |
| Yield Strength | Comparison Standard | Up to 80% Over Hot-Rolled | Same as Hot-Rolled | Same as Hot-Rolled | Up to 80% Over Hot-Rolled |
| Tensile Strength | Comparison Standard | Up to 40% Over Hot-Rolled | Same as Hot-Rolled | Same as Hot-Rolled | Up to 40% Over Hot-Rolled |
| Machinability | Comparison Standard | Up to 25% Over Hot-Rolled | Same as Hot-Rolled | Same as Hot-Rolled | Up to 25% Over Hot-Rolled |
| Surface Finish | Rough Iron Oxide | 30 Ra | 45 Ra | 10 Ra | 10 Ra |
Sizes we can supply for cold drawn steel bars:
| Shapes | Sizes | Processing |
| Steel Round Bar | 5mm to 63.5mm | Cold Drawn |
| Steel Round Bar | 63.5mm-120mm | smooth-turned and polished. |
| cold drawn steel square bar | 5*5mm to 120*120mm | Cold Drawn |
| cold drawn steel hex bar | 5mm to 120mm | Cold Drawn |
| cold drawn steel hexagonal bar | 5mm to 120mm(side to side) | Cold Drawn |
Product Picture

Our factory

Steel Making

Ingot Production

Forged Bars
Machinary
Application:
1045 cold drawn steel bars are used to peoduce hardware tools, auto parts, standard parts, fasteners common shaft, machinery manufacturing, light industry, hardware, bicycles, cars, motorcycles, textile machinery, transformers and other machinery industry
aisi 1045 steel cold drawn material advantages:
1.The size and section of 1045 cold drawn steel provides Tighter tolerances which Reduces machining losses.
2.Good surface finish which Reduces surface machining & improves quality.
3.Good Straightness which Facilitates automatic bar feeding in CNC.
4.It can increase the Mechanical Properties which Can reduce the need for hardening.
5.It can improve the Machinability and Productivity which Enables higher machining feeds, high tool life, yield & speeds and improved machined finish.
Packing & Delivery

Packing & Delivery
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The inner size of container is below:
-- 20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high)
-- 40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high)
-- 40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high)
Main Materials we produce for cold drawn steel bars:
| Type | JIS | AISI | Application |
| Carbon | S10C, S20C, S25C, S35C, S45C, S48C, CH25K, CH25KS, CH35KS, CH38K, CH45K, CH45KS |
1010, 1018, 1020, 1045, 1050 | Oil Pressure Shaft/Automotive Parts |
| Allay Steel | SMn443, SCr420, SCr440, SCM415, SCM420, SCM435, SCM440, SNCM220, SNCM420 |
1541, 5120, 5140, 4115, 4120, 4135, 4140, 8620, 4320,52100/GCr15 |
CV JOINT, Differential Gear |
| Free cutting Steel | SUM21, SUM22, SUM23, SUM43, SUM24L, SUM24EZ | 1213, 1141, 1144, 12L14,1215,1215ms | CNC Machine |
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