Certificates

WKZ023-2003     A662Gr.A

1,technology for heating processing

Normalized temperature:900 + 10 ℃

Normalizing furnace: the total time of heat preservation:2 min/mm and≥50 min

Outdoor furnace: heat preservation time:1.5min/mm

Cooling way: air cold

• Standard: ASTM A662/A662M (also equivalent to ASME SA662/SA662M)
• Grade: A (the lowest strength grade in A662 series, alongside Grades B & C)

• Thickness: Typically up to 50 mm (per standard practice).
• Main Use: Pressure vessels, LPG tanks, heat exchangers requiring reliable low-temperature toughness.