ASTM A333/334 Grade 3 Steel Pipe

ASTM A333 and ASTM A334 standard cover wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures.There are total 7 grades in ASTM A334 standard, Grade 1, 3, 6, 7, 8, 9, Grade 11; and there are 9 grades in this ASTM A333 standard:Grade 1, 3, 4, 6, 7, 8, 9, 10, Grade 11. These steel pipes have excellent properties of corrosion resistance that makes it an ideal choice for use in mild environments range -45℃ to -195℃ for low-temperature pressure vessel and heat exchanger applications. Grade 3 and grade 6 are the most commonly used grade specified in ASTM A333 and ASTM A334

ASTM A333 and ASTM A334 are mainly developed to use in adverse and critical engineering applications, can be mainly used for the production of ethylene, propylene, urea, synthetic ammonia, composite chemical fertilizers and other components, washing, purification, desulfurization, degreasing and other components in the pharmaceutical industry, as well as low-temperature cold storage, pipeline conveying low-temperature liquefied gas and cryogenic separation equipment for LPG and air separation equipment, etc..

ASTM A333/334 Grade 3 Chemical Composition

Materials	C	Si	Mn	P	S	Cr	Ni
Grade 3	≤0.19	0.18-0.37	0.31-0.64	≤0.025	≤0.025	/	3.18-3.82

ASTM A333/334 Grade 3 Mechanical Property

Grade	Tensile Strength (MPa）	Yield Point (MPa)	Elongation (%)
			Y	X
Grade 3	≥450	≥240	≥30	≥20

Both ASTM A333 and ASTM A334 are the specification of carbon and alloy steel used for a low-temperature system. As one of the leading suppliers and manufacturers of carbon steel pipe in China, WLD steel supplies Grade3 steel pipe and equivalent material according to A333 and ASTM A334 for low temp heat exchanger in various sizes and specifications. If you are looking for this material, please contact us or get a quotation. Not only do we have all kinds of sizes, but we also have all kinds of sizes that are hard to find.