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A193 B7 in Singapore Malaysia Thailand

There has been an increasing trend in Singapore, Malaysia and Thailand for bolts and nuts manufactured to ASTM A193 B7 standards.  This is due to the increasing jobs secured in Singapore Malaysia and Thailand in the Oil and Gas sector. More importantly, A193 B7 has been recognized as one of the most basic and important bolting materials used due to its high tensile properties with its additional performance due to the presence of Chromium and Molybdenum.  Quite often, the ASTM A193 B7 stud bolts in Singapore Malaysia and Thailand have additional coatings, whether it is Hot Dipped Galvanized or Xylan.

While A193 B7 remainds a popular material grade in Singapore Malaysia and Thailand, we also see a general increasing trend for more exotic and special materials.  This includes the use of A453 660 , UNS 32760 , ASTM A193 B8M and ASTM A320 L7M .

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A453 660 Bolts & Nuts

Under the ASTM A453 standards, the A453 660 has been the most commonly requested class for bolts and nuts.  Boltings fabricated from these materials are good for use in high temperature service for pressure vessel and valve flanges.  There has been mention (although not conclusive) that the maximum operating temperature of A453 660 bolts is 650 deg Celsius.

With the more demanding conditions, Chin Yuan has brought about a new product combination with further performance enhancements – A453 660 with Xylan Coating.  With its high corrosion resistance properties, the bolts are enhanced further with better lubricity.  A few combinations of bolts and nuts include:

A453 660 (Plain)

A453 660 C/W Xylan 1070

A453 660 C/W Xylan 1424

A453 660 C/W Xylan 1014