A36 SAE 1018 1020 1045 Ss400 S20c S45c C45 40cr En8 En19 4140 Cold Drawn Steel Square Bar

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Product Description

Basic Specifications

Model NO.Cold Drawn Steel Square Bar
CertificationABS, RoHS
TechniqueCold Drawn
AlloyNon-alloy
ConditionCold Drawn
SurfaceBright
PackingAnti-Rust Packing
Specification5X5mm to 120X120mm
OriginChina
Capacity3000tons/Month

Product Description

SAE 1020 1045 SS400 S20C S45C C45 EN8 EN19 4140 Cold Drawn Steel Square Bar

Cold Drawn Steel Square Bar

1. Processing Steps:

EAF + LF + VD + CONCASTING BILLETS + HOT ROLLED + SHOT BLASTING + (ANNEALING) + COLD DRAWN + OILING + BUNDLING + BOTH ENDS CUTTING + PACKING + MARKING

2. Applications:

  • Hardware tools & Fasteners
  • Auto parts & Machinery manufacturing
  • Bicycles, Cars, and Motorcycles components
  • Textile machinery & Transformers
  • Light industry and common shafts
Factory Production Capacity
Shapes Sizes Processing
Steel Round Bar5mm to 63.5mmCold Drawn
Steel Round Bar63.5mm-120mmSmooth-turned and polished
Steel Square Bar5*5mm to 120*120mmCold Drawn
Steel Hex Bar5mm to 120mmCold Drawn
Tolerance and Properties
Metric Hot Rolled Cold Drawn Turned & Polished T.G. & P. D.G. & P.
Diameter+/- 0.008"+/- 0.001"+/- 0.001"+/- 0.0002"+/- 0.0002"
Straightness (max/ft)0.050"0.005"0.005"0.005"0.005"
Yield StrengthStandard+80% Over HRSame as HRSame as HR+80% Over HR
Surface FinishRough30 Ra45 Ra10 Ra10 Ra

Packaging & Grades

Packing Details
  • Bundle weight: Max 1000kgs per bundle.
  • Uniformity: One bundle contains only one size and one heat number.
  • Labeling: Grade, size, heat number, quantity (pcs/kgs), and origin.
  • Handling: Equipped with two lifting belts for easy unloading.
Main Steel Grades
Carbon SteelSAE 1018, A36, SS400, S235JR, SAE 1020, S20C, SAE 1045, S45C, EN8
Alloy SteelSAE 5120, 5140, 4130, 4140, 42CrMo4, EN19, SAE 4340
Free CuttingSAE 1215, 12L14, SUM22, SUM23, 11SMn30, 1144

Key Advantages

  • Tighter Tolerances: Reduces machining losses and provides precise sizing.
  • Superior Surface: Reduces surface machining needs and improves end-product quality.
  • Enhanced Straightness: Facilitates high-speed automatic bar feeding in CNC machines.
  • Improved Properties: Increased mechanical strength can reduce the need for additional hardening.
  • High Productivity: Enables higher machining speeds and longer tool life.
Terms & Payment
MOQ1 Ton Per Size
Payment TermTT, LC
Delivery Time7-10 days for stock; Max 30 days for new production
Price BasisActual Net Weight
Square Bar Detail 1 Square Bar Detail 2 Square Bar Detail 3 Square Bar Production Square Bar Stock

Frequently Asked Questions

What is the range of sizes for cold drawn square bars?
We supply cold drawn square bars ranging from 5X5mm up to 120X120mm.
Which steel grades are most commonly available?
Our main grades include Carbon Steel (SAE 1020, 1045, A36), Alloy Steel (SAE 4140, 5140), and Free Cutting Steel (SAE 1215, 12L14).
How are the bars protected during transport?
All bars are packed with anti-rust oil and bundling to ensure they arrive in bright, optimal condition.
What are the main benefits of cold drawing over hot rolling?
Cold drawing provides much tighter tolerances (+/- 0.001"), a smoother surface finish (30 Ra), and significantly higher yield and tensile strength.
What is your typical delivery lead time?
Stock items are ready within 7-10 days, while new production orders generally take a maximum of 30 days.
Do you provide certification for the steel bars?
Yes, our products are certified to ABS and RoHS standards.

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