Sincerely hope we become long-term partners - Steel pipe & Fittings:

Seamless steel tubes for low-temperature service

HYST QCCO China Steel offer an extensive range of Seamless steel pipes for low temperature sevice. Low temperature service seamless pipes are application for low-temperature pressure container piping by the main standard GB/T18984-2003, ASTM/ASME A/SA333 with steel grade 16MnDG, 10MnDG, A333 Gr.1, A333 Gr.6, A333Gr.3.

GB/T18984-2003 standard suitable for -49 to -148 degrees F cryogenic pressure vessel piping, and low-temperature heat exchanger tubes seamless steel pipe.

ASTM/ASME A/SA-333 Grades allow for cold temperature service to minus 150 degrees F. Material is always provided in the normalized condition at a minimum and Charpy Impact tested to a specific temperature range to assure compliance with the required service temperature.

Low Temperature Steel Pipe Specifications & Grades

• SA333 & A333 – Grades 1, 3, & 6
• GB/T18984-2003 - 16MnDG, 10MnDG

Chemical Composition(%)

Grade	C	Si	Mn	P(max)	S	Ni	Mo	V
16MnDG	0.12-0.20	0.20-0.55	1.20-1.60	0.025	0.025	-	-	-
10MnDG	<=0.13	0.17-0.37	<=1.35	0.025	0.025	-	-	<=0.07
A333 Gr.1	<=0.30	-	0.40-1.06	0.025	0.025	-	-	-
A333 Gr.3	<=0.19	0.18-0.37	0.31-0.64	0.025	0.025	3.18-3.82	-	<=0.12
A333 Gr.6	<=0.30	>=0.10	0.29-1.06	0.025	0.025	-	-	-

Mechanical Properties

Grade	Tensile strength	Lower yield strength（Rcl/Mpa）		Elongation
	Rm/Mpa	W.T.<=16mm	W.T.>16mm	A/%
16MnDG	490-665	>=325	>=315	>=30
10MnDG	>=400	>=240		>=35
A333 Gr.1	>=205	>=380		>=35
A333 Gr.3	>=450	>=240		>=30
A333 Gr.6	>=455	>=250		>=30

 

Available Sizes:

• O.D.: from 3/4 to 20 inch
• W.T.: 0.102 to 4inch (2.6 to 100 mm)
• Length: max 16000mm

Marking:

• Pipes are supplied with marking according to standard and customer request.
• Marking is paint on the ends of pipes.
• The same data, as well as additional information per customer’s request, is indicated on the bundle’s tags.

Delivery:

• Pipes are supplied in hexagonal bundles or round bundles tied with steel strip.
• Weight of bundle – up to 5000 kg upon request of customer.
• Each bundle is furnished with three tags.

 

Welcome to order more.

Note:
This inventory is part of the inventory, demand and other models in stock or order materials, please contact us.