Alloy High Pressure Seamless Steel ASTM A213 Grade T11 T12 Tubing

Short Description:

Alloy seamless steel pipe is a kind of seamless steel pipe, and its performance is much higher than the general seamless steel pipe. Alloy seamless steel pipe contains elements such as silicon, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, aluminum, copper, boron and rare earths.

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Introduction

Seamless Steel Tube is a long steel pipe with a hollow cross-section and no seams around it. Steel pipe has a hollow cross-section and is used in large quantities as a pipeline for transporting fluids, such as oil, natural gas, gas, water and certain solid materials. Compared with solid steel such as round steel, alloy seamless steel pipe is lighter in weight when it has the same bending and torsional strength, and is a kind of economic cross-sectional steel, widely used in the manufacture of structural and mechanical parts, such as oil transportation, stair handrails, bicycle frames, and steel scaffolding used in construction. Alloy seamless steel pipe manufacturing ring-shaped parts, can improve material utilization, simplify the manufacturing process, saving materials and processing hours, such as rolling bearing rings, jack sets, etc., has been widely used to manufacture steel pipe. Alloy seamless steel pipe or a variety of conventional weapons indispensable materials, gun barrels, barrels, etc. to steel pipe to manufacture. In addition, the circular cross-section in the internal or external radial pressure, the force is more uniform, therefore, the vast majority of seamless alloy steel pipe is a circular tube

Classification

（1）Seamless steel pipe for structure: mainly used for general structure and mechanical structure. Its representative materials (grades): carbon steel 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.

（2）Seamless steel pipe for conveying fluids: mainly used in engineering and large equipment for conveying fluid pipelines. The representative materials (grades) are 20, Q345, etc.

（3）Seamless steel pipe for low and medium pressure boilers: mainly used in industrial boilers and domestic boilers for transporting low and medium pressure fluids. The representative material is 10, 20 steel.

（4）Seamless steel pipe for high pressure boiler: mainly used for high temperature and high pressure transmission fluid containers and pipes on boilers of power stations and nuclear power stations. The representative materials are 20G, 12Cr1MoVG, 15CrMoG, etc.

（5）Carbon steel and carbon manganese steel seamless steel pipes for ships: mainly used for I and II pressure resistant pipes for ship boilers and superheaters, etc. The representative materials are 360, 410, 460 steel grade, etc.

（6）Seamless steel pipe for high pressure fertilizer equipment: mainly used for high temperature and high pressure fluid pipeline for fertilizer equipment. The representative materials are 20, 16Mn, 12CrMo, 12Cr2Mo, etc.

Product Display

Alloy seamless steel pipe is mainly used for high pressure and high temperature pipelines and equipment in power plants, nuclear power plants, high pressure boilers, high temperature superheaters and reheaters, etc. It is made of high quality carbon steel, alloy structural steel and stainless heat resistant steel and is hot rolled (extruded, expanded) or cold rolled (drawn).

Alloy seamless steel pipe specification table

Material	Specification	Material	Specification
12Cr1MovG	16-18*3	15CrMo	57-60-63.5*4-5-9
12Cr1MovG	28-32*3-5-6	15CrMo	89-114*6-8-10
12Cr1MovG	48*305-5-6-8	15CrMo	133*6-8-10-14
12Cr1MovG	51*3.5-5-6-8	15CrMo	159*8-10-12-16
12Cr1MovG	60*4-5-8-10	15CrMo	168*8-10-16-20
12Cr1MovG	63.5*4-5	15CrMo	219*14-16-20
12Cr1MovG	76*3.5-6-8-10	15CrMo	273*10-12-14-16-20
12Cr1MovG	89*4.5-6-8-10-12	15CrMo	325*10-12-14-25
12Cr1MovG	108*4.5-6-8-10-12	15CrMo	377*10-12-25
12Cr1MovG	114*6-8-10-12-14	15CrMo	377*24-45
12Cr1MovG	159*8-10-12-16	15CrMo	426*12-14-16-30
12Cr1MovG	194*8-10-16	10Crm910	33.4*9.1
12Cr1MovG	219*8-10-16-20-25	10Crm910	54*6.5
12Cr1MovG	245*10-12-20	10Crm910	530*110
12Cr1MovG	325*10-12-14-25-30	T91	57-60*5.6
12Cr1MovG	377*10-16-30	T91	60*4-6-8
12Cr1MovG	426*10-16-25	T91	54-4-8-10
12Cr1MovG	480*48	T91	51*7
15CrMo	28*4-6	T91	42-5.5
15CrMo	38-42-45*3.5-5-6-8	12Cr2MoWVTiB	42*3.5-5
15CrMo	51*3.5-4-5-6-8	15Mn3	42*5-6

Grades and chemical composition (%)

Grade	C	Mn	P≤	S≤	Si	Cr	Mo
T11	0.05-0.15	0.30-0.60	0.025	0.025	0.50-1.00	0.50-1.00	1.00-1.50
T12	0.05-0.15	0.30-0.61	0.025	0.025	≤0.50	0.80-1.25	0.44-0.65
T13	0.05-0.15	0.30-0.60	0.025	0.025	≤0.50	1.90-2.60	0.87-1.13

Mechanical properties (MPa)

Grade	Tensile Point	Yield Point
T11	≥415	≥205
T12	≥415	≥220
T13	≥415	≥205

Production process diagram

Industrial Applications

1.Seamless steel pipes for gas cylinders: mainly used for making various gas and hydraulic cylinders. Its representative materials are 37Mn, 34Mn2V, 35CrMo, etc.

2.Hot-rolled seamless steel pipes for hydraulic pillars: mainly used for making hydraulic supports and cylinders and columns for coal mines, as well as other hydraulic cylinders and columns. Its representative materials are 20, 45, 27SiMn, etc.

3.High pressure seamless steel pipe for diesel engine: mainly used for diesel injection system high pressure oil pipe. Its steel pipe is generally cold-drawn, and its representative material is 20A.

4.Cold-drawn or cold-rolled precision seamless steel pipe: mainly used for mechanical structures, carbon pressure equipment, requiring high dimensional accuracy, good surface finish steel pipe. Its representative material 20, 45 steel, etc.

FAQ

1.Why you choose us ?
Our company has been in Alibaba.com for 12 years. We control the quality of the products very strictly, there are special people for the quality.
If you got lower price from other supplier ,we will pay back twice to customers about the higher price.

2.How long is your delivery time?
According to the quantity.Generally within 2-7 days if in stock.And 15-20 days if not in stock.

3.What is your payment terms?
A: By T/T 30% in advance ,and 70% before delivery.
B:100% L/C at sight.
C:By T/T 30% in advance,and 70% L/C at sight.

4.Do you provide samples ? Is it free?
Yes, we offer the sample for free but do not pay for the cost of freight.

5.What if the customer is not satisfied?
If there is a problem with the product,we take full responsibility.
If there is a problem in the transportation process,we will help you to solve it.

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