ASTM A193 Gr.B7M Threaded Rods

详情

Basic Info
Model NO.: ASTM **3Gr.B7M        
Material:     High Strength Steel
Connection: Common Bolt
Head Style: Round
Export Markets: USA, Canada, Brazil, UK. France, Germany, Spain, Italy, Switzerland, Dubai, Singapore, Malaysia, Japan, Korea.etc.

Additional Info
Trademark:     M
Packing:     in Bundles Then on **0kgs Pallet
Origin:     Ningbo, China

Product Description
1). Standard, ASTM A**3 threaded rod
2). Grade, Gr. B7M,
3). Material, Carbon, alloy, stainless, brass, etc.
4). Surface, Plain, black, ZP, ZY, H. D. G., Teflon Coated etc.
5). Packaging, In Bundles then on **0KGS Pallet


1. Scope
1.1 This specification covers alloy and stainless steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
1.2 The B7 grade threaded rods are a heat treated chromium-molybdenum steel. This grade of threaded rods is commonly used for fastening of medium high temperature service materials. They have a liquid quench range of *0 to **0 degrees Fahrenheit and an air quench range of **0 to **0 degrees Fahrenheit.

2. Manufacture (Process)
4.1 The steel shall be produced by any of the following processes: open-hearth, basic-oxygen, electric-furnace, or vacuum-induction melting (VIM). The molten steel may be vacuum-treated prior to or during pouring of the ingot or strand casting.