ASTM A387 Gr 91 Plates

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High quality ASTM / ASME A /SA 387 Grade 91 / F91 Plates are manufactured at Gautam tubes. These plates are ideal for use in gas, chemical, oil and power generation industries. We supply plates to the customer on the basis of a global standard. We stock an extensive range of 387 plates which are available in various standards, specifications, designations and custom dimensions. Our plates are manufactured under stringent industrial design codes which mean to produce high quality of products. We also regularly supply other chrome and moly plates.

Standard Specification and Size Range of Alloy Steel Gr 91 Plates

Specifications : ASTM A387 / ASME SA387

Width : 1000mm-4500mm

Length : 3000mm-18000mm

Thickness : 5mm-150mm

Process of Manufacturing : Hot-Rolled (HR)

Supply Condition : As Rolled, Normalized Rolling, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement.

Standard : EN 10083-3 : Steels for Quenching and Tempering: Technical Delivery Conditions for Alloy Steels EN 10028-2: Flat products made of steels for pressure purposes. Non-alloy and alloy steels with specified elevated temperature properties

ASME SA 387 Gr 91 Alloy Steel Plates Equivalent Grades

UNS K90901
DIN 1.4903
JIS -
EN -
BS -

Types Of Alloy Steel GR 91 Plates Stock

Alloy Steel Class 1 Grade 91 Plates

ASTM A387 Alloy Steel Gr 91 Class 1 Plates

Grade 91 Alloy Steel Class 1 Plates, Alloy Steel GR 91 Cl 1 Plates, UNS K90901 Plates, DIN 1.4903 Plates, Gr 91 Alloy Steel Class 1 Plates

Alloy Steel Class 2 Grade 91 Plates

ASTM A387 Alloy Steel Gr 91 Class 2 Plates

Alloy Steel Gr 91 Class 2 Plates, Chrome Moly 1.4903 Class 2 Plates, UNS K90901 Class 2 Plates, Cr-Mo Grade 91 Class 2 Plates

Alloy Steel CL. 1/2 Plates

ASTM A387 Alloy Steel CL. 1/2 Plates

Chrome Moly CL 1 / 2 Plates, Alloy Steel Gr 91 CL 1/2 Plates, Class 1 / 2 Alloy Steel K90901 Plates, Cr-Mo DIN 1.4903 Plates

Chemical Composition of Alloy Steel Grade 91 Plates

Grade C Mn Si P S Cr Mo
Alloy Steel F91 0.08-0.12 max 0.3-0.6 0.5 max 0.01 max 0.02 max 8.5 – 9.5 0.85-1.05

Mechanical Properties of ASTM A387 CrMo Gr 91 Plates

Tensile Strength Yield Strength (0.2%Offset) Elongation
415 585 20 %
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Application Industries

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