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MS / CS & Alloy Steel · 387-11

SA-387 Gr 11 Cl 2 — Plate

Also sold as ASTM A387 Gr 11 Cl 2 · 1¼Cr-½Mo plate · Chrome-moly plate

SA-387 Gr 11 Cl 2 is a chrome-moly pressure-vessel plate, chosen for hot, high-pressure reactors and heat exchangers. We supply it as plate, with EN 10204 3.1 certificates, from Mumbai to India, the Gulf, South-East Asia, South America, Europe, the UK and the USA.

  • 387-11
  • ρ 7.85 g/cm³

Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026

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SA-387 Gr 11 Cl 2 Specifications by Product — Which Standard Applies?

The material standard changes with the product form. This is the table buyers ask for most.

ProductMaterial standardDimensions
SA-387 Gr 11 Cl 2 plateASTM A387 Gr 11 Cl 2 · ASME SA-387ASTM A480 / B906 / A20

SA-387 Gr 11 Cl 2 Chemical Composition

Under technical review for TDS.

ElementCurrent requirement
ChromiumAs specified
MolybdenumAs specified
CarbonAs specified
ManganeseAs specified
SiliconAs specified
PhosphorusAs specified
SulphurAs specified

Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM A387 Grade 11.

SA-387 Gr 11 Cl 2 Mechanical Properties

Under technical review for TDS.

PropertyCurrent requirement
Tensile strengthAs specified
Yield strengthAs specified
Elongation (50 mm)As specified

Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification and condition to be verified: ASTM A387 Grade 11 — Class 2.

Density & Physical Properties

PropertyValue
Density7.85 g/cm³
Melting range1420 – 1530 °C
MagneticMagnetic

SA-387 Gr 11 Cl 2 Equivalent Grades

DesignationSA-387 Gr 11 Cl 2
Also calledASTM A387 Gr 11 Cl 2 · 1¼Cr-½Mo plate · Chrome-moly plate
StandardASTM A387 Grade 11

Welding SA-387 Gr 11 Cl 2

Matching fillerER80S-B2 / E8018-B2
Also usedPreheat and PWHT required

SA-387 Gr 11 Cl 2 for export

FOB / CIF · Nhava Sheva (JNPT), Mumbai

SA-387 Gr 11 Cl 2 — questions buyers ask

What is SA-387 Gr 11 Cl 2?

SA-387 Gr 11 Cl 2 is a chrome-moly pressure-vessel plate. It is chosen for hot, high-pressure reactors and heat exchangers.

Which standards cover SA-387 Gr 11 Cl 2 products?

Plate: ASTM A387 Gr 11 Cl 2 · ASME SA-387. Always name the standard and edition on your order.

What is the density of SA-387 Gr 11 Cl 2?

7.85 g/cm³ — use it to calculate weights: plate kg = L(m) × W(m) × t(mm) × 7.85.

Reviewed by the technical team, Kanak Steel & Engineering Co.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026
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