Low Carbon Steel Bar | 1018 / 1025 / A36 | Mild Steel Round Bar

PRODUCT PARAMETERS

  • Grades: 1018 / 1025 / A36
  • Type: Low Carbon / Mild Steel Bar
  • Size Range: 6–800 mm
  • Applications: Structural, machining, automotive, general engineering
  • Key Feature: Excellent weldability & machinability

Description
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Description

🟦 Product Overview

Low Carbon Steel Bars—represented by 1018, 1025, and A36—are the most widely used mild steel materials for:

  • General engineering
  • Structural components
  • Machining and fabrication
  • Automotive and mechanical parts

These grades offer:

  • Excellent weldability
  • Good machinability
  • High ductility
  • Stable mechanical performance
  • Cost‑effective material choice

Although 1018, 1025, and A36 have slight differences in carbon content and strength, they belong to the same mild steel family and serve similar applications.

🟦 Standards

  • ASTM A29 (1018 / 1025)
  • ASTM A36 (structural steel)
  • ASTM A108 (cold‑finished bars)
  • EN / DIN equivalents available

🟦 Grades Included

  • 1018 — Low carbon, excellent machinability
  • 1025 — Slightly higher carbon, improved strength
  • A36 — Structural mild steel, widely used in construction

🟦 Product Specifications & Available Sizes

Shapes Available

  • Round Bar
  • Square Bar
  • Flat Bar
  • Hex Bar

Diameter Range

  • 6–800 mm

Length

  • 1–12 m / custom cut

Surface Conditions

  • Hot Rolled
  • Cold Drawn
  • Peeled / Turned
  • Polished

🟦 Chemical Composition Comparison

GradeC (%)Mn (%)P (%)S (%)
10180.15–0.200.60–0.90≤ 0.040≤ 0.050
10250.22–0.280.60–0.90≤ 0.040≤ 0.050
A36≤ 0.260.60–0.90≤ 0.040≤ 0.050

🟦 Mechanical Properties Comparison

GradeTensile StrengthYield StrengthElongation
1018440–470 MPa370 MPa15–20%
1025485–550 MPa380–400 MPa12–18%
A36≥ 400 MPa≥ 250 MPa≥ 20%

🟦 Physical Properties

PropertyValue
Density7.85 g/cm³
Melting Point~1450°C
MagneticYes

🟦 Manufacturing Processes

  • Hot Rolling
  • Cold Drawing
  • Turning / Peeling
  • Grinding / Polishing
  • Heat Treatment (optional)

🟦 Primary Industry Usage

  • Machinery components
  • Structural parts
  • Shafts & pins
  • Automotive parts
  • Construction & fabrication
  • General engineering

🟦 Why Use Low Carbon Steel Bar

  • Excellent weldability
  • Good machinability
  • High ductility
  • Cost‑effective
  • Suitable for mass production

🟦 Why Choose Jaron Steel

  • Full range of 1018 / 1025 / A36
  • Hot rolled & cold drawn options
  • MTC 3.1 + third‑party inspection
  • Export‑grade packaging
  • Competitive pricing for global buyers

International Carbon Steel Grade

America Japan GermanyBritain FranceItalySpainSwitzerlandChina
AISI/SAEJISW‐nr.DINBSENAFNORUNIUNESSGB
A570.36STKM 12A1.0038RSt.37‐24360‐E 24‐2‐‐131115
–STKM 12C––40 C–Ne––––
1015‐1.0401C15080M15‐CC12C15, C16F.111135015
1020‐1.0402C22050A202CCC20C20, C21F.112145020
1213SUM221.07159SMn28230M071AS250CF9SMn28F.21111912Y15
11SMn28
12L13SUM22L1.07189SMnPb28‐‐S250PbCF9SMnPb2811SMnPb281914‐
‐‐1.072210SPb20‐‐10PbF2CF10Pb2010SPb20‐‐
1215‐1.07369SMn36240M071BS300CF9SMn3612SMn35‐Y13
12L14‐1.07379SMnPb36‐‐S300PBCF9SMnPb3612SMnP351926‐
1015S15C1.1141Ck15080M1532CXC12C16C15K137015
1025S25C1.1158Ck25‐‐‐‐‐‐25
A572-60‐1.890StE3804360 55‐‐FeE390KG‐2145‐
1035‐1.0501C35060A35‐CC35C35F.113155035
1045‐1.0503C45080M46‐CC45C45F.114165045
1140‐1.072635S20212M368M35MF4‐F210G1957‐
1039‐1.115740Mn4150M361535M5‐‐‐40Mn
1335SMn438(H)1.116736Mn5‐‐40M5‐36Mn5212035Mn2
1330SCMn11.117028Mn6150M2814A20M5C28Mn‐‐30Mn
1035S35C1.1183Cf35060A35‐XC38TSC36‐157235Mn
1045S45C1.1191Ck45080M46‐XC42C45C45K1672Ck45
1050S50C1.1213Cf53060A52‐XC48TSC53‐167450
1055‐1.0535C55070M559‐C55‐165555
1060‐1.0601C60080A6243DCC55C60‐‐60
1055S55C1.1203Ck55070M55‐XC55C50C55K‐55
1060S58C1.1221Ck60080A6243DXC60C60‐167860Mn
1095‐1.1274Ck101060A96‐XC100‐F.51171870‐
W1SK31.1545C105W1BW1A‐Y105C36KUF.51181880‐
W210SUP41.1545C105W1BW2‐Y120C120KUF.5152900‐

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