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Carbon Steel

carbon steel products
Carbon steel is a widely used material known for its excellent strength, durability, and cost-effectiveness. It contains varying amounts of carbon, which enhances its hardness and wear resistance while maintaining good weldability and machinability. Carbon steel is classified into three main categories: low-carbon steel (mild steel), medium-carbon steel, and high-carbon steel, each offering unique mechanical properties suited for different applications. Carbon steel is extensively used in industries such as oil & gas, petrochemical, construction, power generation, and automotive due to its high tensile strength and ability to withstand extreme conditions.
ASTM/ASME

Carbon Steel Specifications

Standard

ASTM, ASME, API, DIN, EN, JIS, ISO

Grades

ASTM A105, ASTM A106 Gr. B, ASTM A516 Gr. 60/70, ASTM A350 LF2, ASTM A234 WPB, ASTM A53 Gr. B, ASTM A333 Gr. 6, ASTM A672, ASTM A694 F52/F60/F65/F70

Applications

Oil & Gas, Petrochemical, Power Generation, Chemical Processing, Structural Components, Food Processing, Cladding & Roofing, Railings, Exhaust Systems, Medical & Surgical Instruments

ASTM/ASME

A105, A106, A234, A516, A350, A333, A672, A694, A36, A283, A53

Forms and Products

Pipes and Tubes, Buttweld Fittings, Flanges, Forged Fittings, Sheets, Plates, and Coils, Bars and Rods, Fasteners, Filler Wire, Outlet

Types

Low Carbon Steel, Medium Carbon Steel, High Carbon Steel, Alloy Carbon Steel
Available in all grades

Carbon Steel Products

flanges suppliers
Flanges
ASME B16.5, B16.47, MSS-SP-44
buttweld suppliers
Buttweld Fittings
ASME B16.9, B16.28, MSS-SP-43
forged suppliers
Forged Fittings
ASME B16.11, MSS-SP-79, 83, 97
fasteners suppliers
Fasteners
ASME B18.2.1, B18.2.2
pipes tubes suppliers
Pipes Tubes
ASME B36.10, EN 10217 / EN 10216
outlets suppliers
Outlets
MSS-SP-97, ASME B16.11
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ASTM / ASME

Equivalent Grades

Grade ASTM EN (DIN) JIS GOST BS AFNOR
A36 A36 1.0044 SS400 20# 43A S235JR
A106B A106B 1.0473 – 20# – –
A53B A53B 1.0486 – – – –
A516-70 A516-70 1.0619 – 15H – –
A572-50 A572-50 1.0580 – 09G2S – –
A992 A992 1.5705 – – – –
A234 WPB A234 WPB 1.4401 (X5CrNiMo17) – 08Х18Н10 304S15 Z6CN18-09
A105 A105 1.0460 – – – –
A307 A307 – – – – –
A325 A325 – – – – –
ASME / ASTM

Chemical Composition

Grade Carbon (C) % Manganese (Mn) % Phosphorus (P) % Sulfur (S) % Silicon (Si) % Iron (Fe) %
A36 0.26 max 0.60 – 0.90 0.04 max 0.05 max 0.40 max Balance
A106B 0.30 – 0.60 0.10 – 0.40 0.03 max 0.03 max 0.10 max Balance
A53B 0.25 – 0.29 0.40 max 0.05 max 0.045 max 0.10 max Balance
A516-70 0.26 – 0.29 0.79 – 1.30 0.03 max 0.03 max 0.08 max Balance
A572-50 0.21 – 0.23 1.35 – 1.65 0.04 max 0.04 max 0.15 max Balance
A992 0.23 max 0.50 – 0.70 0.05 max 0.05 max 0.40 max Balance
A234 WPB 0.25 – 0.30 0.30 – 0.70 0.04 max 0.05 max 0.10 max Balance
A105 0.35 – 0.50 0.60 – 0.90 0.04 max 0.05 max 0.15 max Balance
A307 0.25 – 0.30 0.60 max 0.04 max 0.05 max 0.15 max Balance
A325 0.25 – 0.29 0.60 – 0.90 0.04 max 0.05 max 0.15 max Balance
ASME / ASTM

Mechanical Properties

Grade Yield Strength (ksi) Tensile Strength (ksi) Elongation (%) Hardness (HB) Modulus of Elasticity (ksi)
A36 36 58 – 80 20 119 – 159 29,000
A106B 35 60 – 80 20 120 – 170 29,000
A53B 35 60 – 90 20 120 – 160 29,000
A516-70 38 70 – 90 20 130 – 170 29,000
A572-50 50 65 – 85 20 130 – 160 29,000
A992 50 65 – 75 20 120 – 160 29,000
A234 WPB 30 60 – 80 20 120 – 160 29,000
A105 36 70 – 100 20 120 – 160 29,000
A307 30 60 – 80 20 120 – 150 29,000
A325 60 90 – 120 18 120 – 160 29,000