EN8 Carbon Steel stands as a prominent member of the medium carbon and medium tensile steel family, recognized for its superior strength compared to mild steel. This through-hardening medium carbon steel offers a robust combination of mechanical properties, making it a preferred choice in various industrial applications. At its core, EN8 is celebrated for its machinability under diverse conditions.

EN8 carbon steel strikes a balance between carbon content and tensile strength, making it an ideal choice for applications requiring enhanced strength without compromising on machinability.

One of the standout features of EN8 is its exceptional machinability. This attribute allows for ease of machining in any condition, contributing to efficient manufacturing processes.

While EN8 is commonly used in its untreated condition, it has the capability to undergo surface hardening through induction processes. This enhances wear resistance, extending the lifespan of components in demanding applications.

EN8 steel, in its heat-treated forms, exhibits homogenous metallurgical structures. This consistency not only contributes to its mechanical strength but also ensures predictable and reliable machining properties.

EN8 steel holds a significant position within the BS 970-1955 specification, a standard dedicated to wrought steel for mechanical and allied engineering purposes. As part of this esteemed standard, EN8 is renowned for its mechanical properties, making it a pivotal steel grade in various industrial applications.

Within the framework of BS 970-1955, EN8 is part of a family of steel grades, each designed for specific applications. Other notable grades include EN9, EN19, EN24, EN36, and more. Notably, the most equivalent contemporary grade is 080M40 steel in BS 970-1991, underlining the enduring relevance and recognition of EN8 steel.

Available Shapes and Dimensions: EN8 Carbon Steel comes in a variety of shapes and dimensions, catering to diverse manufacturing needs. At SA179 Tube, we offer EN8 steel in the following forms:

  1. EN8 Steel Round Bar:
    • Diameter Range: 8mm-1600mm
  2. EN8 Steel Cold Drawn Bar:
    • Diameter Range: 5mm-70mm
  3. EN8 Carbon Steel Flat & Plate:
    • Thickness Range: 10mm-1500mm
    • Width Range: 200mm-3000mm

EN8 Round Bar stands out as a pinnacle in medium carbon steel, offering impressive ductile strength compared to standard mild steel. This steel grade is exceptionally well-suited for a broad spectrum of manufacturing applications that demand advanced strength. At [Your Company Name], we present EN8 steel – a reliable choice for crafting tubes, studs, bolts, linking rods, screws, rollers, and more.

EN8 bright bar, a medium-strength mild steel, serves general manufacturing purposes that demand steel with higher strength than mild steel. While superior to EN3, it maintains a balance between strength and machinability. Common uses include tubes, studs, screws, and keys.

EN8 Bright Mild Steel Round stands as a medium-power steel, meticulously crafted for overall engineering applications demanding higher strength than conventional mild steel. The EN8 Bright Square Bar, shaped through cold over and cold drawn processes, exemplifies precision and strength. The EN8 grade, characterized by its purity and medium carbon composition, attains extraordinary strength levels compared to normal Bright Mild Steel, courtesy of meticulous flask mechanical rolling.

For your convenience, we offer a range of EN8 products, including bright square bars and threaded bars, with competitive prices. With years of expertise in supplying EN8 products in India, we ensure quality and reliability in every transaction.

EN8 Round Bar Specifications

Standards Designation
Length Diameter
6-12m 100mm-1200mm
Type Certification
En8A Carbon Steel Round Bar ISO 9001:2008
USA Japan Germany U.K.   France Italy Spain Sweden China
A570.36 STKM 12A 1.0038 RSt.37‐2 4360 E 24‐2 1311 15
  STKM 12C     40 C   Ne        
1015 1.0401 C15 080M15 CC12 C15, C16 F.111 1350 15
1020 1.0402 C22 050A20 2C CC20 C20, C21 F.112 1450 20
1213 SUM22 1.0715 9SMn28 230M07 1A S250 CF9SMn28 F.2111 1912 Y15
12L13 SUM22L 1.0718 9SMnPb28 S250Pb CF9SMnPb28 11SMnPb28 1914
1.0722 10SPb20 10PbF2 CF10Pb20 10SPb20
1215 1.0736 9SMn36 240M07 1B S300 CF9SMn36 12SMn35 Y13
12L14 1.0737 9SMnPb36 S300PB CF9SMnPb36 12SMnP35 1926
1015 S15C 1.1141 Ck15 080M15 32C XC12 C16 C15K 1370 15
1025 S25C 1.1158 Ck25 25
A572‐60 1.890 StE380 4360 55 FeE390KG 2145
1035 1.0501 C35 060A35 CC35 C35 F.113 1550 35
1045 1.0503 C45 080M46 CC45 C45 F.114 1650 45
1140 1.0726 35S20 212M36 8M 35MF4 F210G 1957
1039 1.1157 40Mn4 150M36 15 35M5 40Mn
1335 SMn438(H) 1.1167 36Mn5 40M5 36Mn5 2120 35Mn2
1330 SCMn1 1.1170 28Mn6 150M28 14A 20M5 C28Mn 30Mn
1035 S35C 1.1183 Cf35 060A35 XC38TS C36 1572 35Mn
1045 S45C 1.1191 Ck45 080M46 XC42 C45 C45K 1672 Ck45
1050 S50C 1.1213 Cf53 060A52 XC48TS C53 1674 50
1055 1.0535 C55 070M55 9 C55 1655 55
1060 1.0601 C60 080A62 43D CC55 C60 60
1055 S55C 1.1203 Ck55 070M55 XC55 C50 C55K 55
1060 S58C 1.1221 Ck60 080A62 43D XC60 C60 1678 60Mn
1095 1.1274 Ck101 060A96 XC100 F.5117 1870
W1 SK3 1.1545 C105W1 BW1A Y105 C36KU F.5118 1880
W210 SUP4 1.1545 C105W1 BW2 Y120 C120KU F.515 2900

EN8 Round Bar Chemical Composition

Grade Chemical composition %:
C Si Mn S P Cr Ni Cu
En8A 0.17-0.24 0.17-0.37 0.7-1.00 ≤0.035 ≤0.035 ≤0.25 ≤0.25 ≤0.25

En8A Carbon Steel Round Bar Physical Properties

Physical Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in3
Physical Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in3

EN8 Round Bar Mechanical Properties

Grade Tensile Strength (Mpa) Yield Strength (Mpa) Elongation in 100-150 mm(%) Reduction in Area Hardness
En8A ≥380 ≥210 ≥25 ≥50 ≤111HB

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