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PVQ / ASME

SA285

Carbon steel plate, primarily used for fusion-welded pressure vessels with low and intermediate tensile strengths. Produced in as-rolled and normalized conditions in grades A (45-65 KSI Tensile), B (50-70 KSI Tensile), and C (55-75 KSI Tensile). All grades are produced up to 2”.

SA387

Chromium-molybdenum alloy steel plate, primarily used for welded boilers and pressure vessels that are designed for elevated temperature service with limited corrosion concerns. Produced in the heat treat condition with annealing, normalizing and tempering, or accelerated cooling with air blasting or liquid quenching followed by tempering. Max thickness only limited by steel-making capabilities.

Grade Chroium % Molbdenum %
2 .050 0.50
12 1.00 0.50
11 1.25 0.50
22,22L 2.25 1.00
21,21L 3.00 1.00
5 5.00 0.50
9 9.00 1.00
91 9.00 1.00
SA515

Carbon-silicon based steel plate, primarily used for intermediate and higher-temperature service in welded boilers and other pressure vessels. Produced in as-rolled and normalized conditions and in grades 60, 65, and 70 (up to 8”).

SA516

Carbon steel plate, primarily used for service in welded pressure vessels where improved notch toughness is important. Produced in as-rolled and normalized conditions in grade 55 (up to 12”) and grades 60, 65, and 70 (up to 8”). Plates are commonly ordered with Charpy Impacts at -20° F 15/12 FT LBS.

SA517

High-strength quenched and tempered alloy steel plate, primarily used in fusion welded boilers and other pressure vessels. Produced in heat treat condition in grades A and B (up to 1.25”), H and S (up to 2”), P (up to 4”), F (up to 2.5”, and E and Q (up to 6”).

SA537

Heat-treated carbon-manganese-silicon steel plate, primarily used for fusion welded pressure vessels and structures. Produced in heat treat condition in Class 1 (normalized up to 4” with 50 KSI Yield and 70 KSI Tensile), Class 2 (quenched and tempered up to 6” with 60 KSI Yield and 80 KSI Tensile), and Class 3 (quenched and tempered up to 6”).

HIC

HIC stands for “hydrogen induced cracking,” which is cracking that typically occurs in pressure vessel grade material used in sour service (wet H2S) applications. If the steel has inclusions, hydrogen ions can create gas pockets and ultimately cracks in the steel.

HIC plate is plate that has been produced with low sulfur and calcium treatment, among other things, to protect the steel against hydrogen induced blisters and cracking.

HIC tested plate is typically sold pre-tested to NACE TM0284. Common test parameters (specified by project requirements and specifications) include crack sensitivity ratio (CSR), crack length ratio (CLR), and crack thickness ratio (CTR).

We are well-versed in HIC material and are happy to source HIC tested plate and perform other value-added services for your project.

CLAD

CLAD plate is comprised of two metals roll-bonded or explosion-bonded together to form one metallurgically bound piece of plate. The base metal is typically a carbon or alloy steel and this determines the strength properties. The “cladder” is typically a stainless steel or nickel alloy, which gives the CLAD plate enhanced corrosion resistance. Combining the base metal and cladder allows the plate to have the corrosion resistance of a full stainless or nickel alloy plate at a much lower price.

We have extensive sourcing on CLAD plate and have executed numerous CLAD projects that require cladder peel-back, burning, beveling, and rolling. Call us today if you need help with a CLAD project.

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