hebei shengtian offer buttweld fittings in the form of return bends and caps which are manufactured using superior quality raw material. Complying with prevalent industrial standards, these bends and caps are known for high performance and durability.
The standards and technical information regarding range and forms are tabulated as follows:
2D bend,3D bend,4D bend,5D bend,6D bend,10D bend ,seamless bend.carbon steel bends

Material Grades
Materials	Standards	Grades
Carbon Steels	ASTM A234 & ASME SA234	WPB & WPC
Alloy Steels	ASTM A234 & ASME SA234	WP1, WP11, WP12, WP22, WP5, WP7, WP9 & WP91
Stainless Steels	ASTM A403 & ASME SA403	304, 304L, 310,316, 316H, 316L, 321, 321H, 347 &347H.