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• Brief introduction of API X52 pipeline steel
• The difference between PSL1 and PSL2
• Harm of inclusions in X70 pipeline steel
• API 5L pipeline pipe
• X52 steel plate surface quality standards that need to be met
• The basic production process of API 5L X60 pipeline steel
• The key to Q460D steel welding process
• What does the heat treatment of Q690 Steel include?
• Reasons for choosing Q690D steel

A204 Grade A Steel, Molybdenum Alloy Steel

A204 Grade A steel is a molybdenum alloy steel plate for pressure vessel steel. Based on it’s molybdenum element, ASTM A204 steel covers three grades: A, B, C. The maximum plate thickness is limited only by the chemical composition to achieve certain mechanical property figure; steel plate and coils under this specification normally limit thickness as follows: ASTM A204 grade A: 6 in[150mm]; ASTM A204 grade B: 6 in[150mm]; ASTM A204 grade C: 4 in[100mm].

A204 Grade A Steel Equivalent, Molybdenum Alloy Steel Plate

A204 Grade A Steel Plates Specification
Thickness: 3-150mm
Width: 1220-4200mm
Length: 5000-18000mm
Notes: A204 Gr. A coil thickness ≤ 25mm

A204 Grade A Technical Requirements & Additional Services:

High tension test
Low temperature impacting test
Normalised for thick plates over 40mm
Simulated post-welded heat treatment (PWHT)
Rolling under standard NACE MR-0175 (HIC+SSCC)
Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
Shot blasting and Painting,Cutting and welding as per end user’s demands
A204 Grade A & DIN 15Mo3 Steel Similarities
A204 Grade A molybdenum alloy steel is robust, rebyclable, and have enhanced surface quality. A balance between both steel and chromium forms DIN 15Mo3 alloy steel imperious to oxidation and erosion, with brittle-free hardenability from steel and Chromium. They don’t age or decay, are anti-corrosion and have excellent thermal and heat conductivity. All these factors offer alloy steel plates have a long life, sustainable and viable choice.