ZERON 100 Bolts

January 29, 2017 by · Leave a Comment 

ZERON® 100 is a highly alloyed super duplex stainless steel for use in aggressive environments. The combination of properties makes ZERON® 100 the optimum choice in a range of industries. ZERON® 100 is highly resistant to corrosion in a wide range of organic and inorganic acids. The copper content gives excellent resistance to corrosion in many non-oxidizing acids. This alloy is also highly resistant to strong alkalis. ZERON® 100 is not recommended for uses which involve extended exposure to temperatures greater than 300°C (572°F) as there is a substantial reduction in toughness.

660 Bolts

January 28, 2017 by · Leave a Comment 

Grade 660 Bolts

ASTM A453 Grade 660 covers four grades of bolting materials Classes A, B, C, and D  for use in High Strength, Heat Resistance Steel
service such as 660 bolts for pressure vessel and flanges. 

Sigma custom manufaters 660 bolting in Hex bolts, hex nuts, screws, washers, studs, and stud bolts.

L7M Bolts

January 27, 2017 by · Leave a Comment 

ASTM L7M Custom Bolts

ASTM A320 Grade L7M bolting is designned for low temperature sour gas service where there is high concertration of Hydrogen Sulfide gases present in prodcution situation. Per the specification at Sigma Fasteners we have our own heat treating furnace and hardness testing equipmet for onsite L7M modification and hardness testing. All L7M bolts require 100% hardness testing and at Sigma we keep it in house for complete control over the quality your products demand.

Sigma Earns API 20F

January 25, 2017 by · Leave a Comment 

Sigma Fasteners, Inc Earns American Petroleum Institute 20F Monogram

Houston, Texas, January 25, 2017 – Sigma Fasteners, Inc., a manufacturer, and distributor of engineered and high-pressure bolting products, announced today that it received the American Petroleum Institute (API) 20F Monogram License Number 20F-007 to manufacture API 20F bolting at its original facility in Houston, Texas. This new monogram adds to Sigma capabilities having earned API 20E and API Spec Q1, last May. Sigma is one of a few in the world to have received the API 20F Monogram for Corrosion Resistant Bolting for Use in the Petroleum and Natural Gas Industries.

“The API 20F Monogram is just a stepping stone on our path of continual improvement,” said Sigma Fasteners President Cris Baker. “We’ve already laid the ground work to further our goals and meet our customers’ expectations in 2017 and beyond.”

About Sigma Fasteners
Headquartered in Houston, Texas, Sigma is one of the most trusted fastener and specialty bolt suppliers in the world. Sigma is committed to first-class quality products and service. It has manufacturing, sales and service facilities located in Houston servicing customers around the world. Sigma Fasteners has developed a strategy for innovation and leadership in bolting products with the widest selection of bolting materials ready for prompt delivery. Sigma relies on investing in its people, leading technology and state-of-the-art manufacturing facilities to produce the engineered products to custom specifications which serve petroleum refining, petrochemical, power generation, and pulp and paper industries. For additional information, visit www.sigmafasteners.com or call +1 (281) 214-8800.

CONTACT:
Pat Garrett
Sigma Fasteners, Inc. Director of Sales
(281) 214-8800

B7M Bolt

January 25, 2017 by · Leave a Comment 

ASTM B7M Custom Bolts

ASTM A193 Grade B7M bolting is designned for sour gas service where there is high concertration of Hydrogen Sulfide gases present in prodcution situation. Per the specification at Sigma Fasteners we have our own heat treating furnace and hardness testing equipmet for onsite B7M modification and hardness testing. All B7M bolts require 100% hardness testing and at Sigma we keep it in house for complete control over the quality your products demand.