Name: Low temperature pipe
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Low temperature pipe

The ratio of steel used in low-temperature alloy tubes to carbon structural steel. It has the advantages of high strength, good comprehensive performance, long service life, wide application range and comparative economy. The steel is mostly rolled into plates, profiles, seamless steel pipes and so on.

Product Description

Shandong HengdingSheng Steel Co., Ltd. is a professional carbon steel pipe manufacturer with ISO CE certificate and a large factory with a productivity of 500,000 tons per month. We supply from wall thickness 0.5-300mm, including seamless carbon steel pipe and welded carbon steel pipe. Custom sizes available. We have large stocks for fast delivery, and provide free samples and customized services. The main markets are distributed in Europe, North America, South America, Africa, Southeast Asia and Oceania. The company has established stable cooperative relations with customers in more than 100 countries and regions.

Product Type	Low temperature pipe,Low Temperature Alloy Steel Tube,Seamless Low temperature pipe,Carbon Steel Seamless Low Temperature
Specifiction	Product Type:Low Temperature Pipe
Size	Outer diameter(OD): 73-630mmWall thickness(WT): 6-35mmLENGTH:Single Random, Double Random, Cut Length
Application	In Refineries, Power Plants, Boilers, Heat Exchangers, Condensers etc.
Pipe Standard	ASTM A333/ASME SA333
Heat Treatment	Annealed: Bright Annealed,Spheroidize Annealed, Normalized, Stress Relieved, Cold Finished, Quenched And Tempered

1. ASTM A333 Chemical Composition Requirements

Chemical Composition of ASTM A333
Element	Grade 1, %	Grade 3, %	Grade 4, %	Grade 6, %	Grade 7, %	Grade 8, %	Grade 9, %	Grade 10, %	Grade 11, %
C	0.30	0.19	0.12	0.30	0.19	0.13	0.20	0.20	0.10
Mn	0.40–1.06	0.31–0.64	0.50–1.05	0.29–1.06	0.90	0.90	0.40–1.06	1.15–1.50	0.60
P	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.035	0.025
S	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.015	0.025
Si	...	0.18–0.37	0.08–0.37	0.10 min	0.13–0.32	0.13–0.32	...	0.10–0.35	0.35
Ni	...	3.18–3.82	0.47–0.98	0.40	2.03–2.57	8.40–9.60	1.60–2.24	0.25	35.0–37.0
Cr	...	...	0.44–1.01	0.30	...	...	...	0.15	0.50
Cu	...	...	0.40–0.75	0.40	...	...	0.75–1.25	0.15	...
Al	...	...	0.04–0.30	...	...	...	...	0.06	...
V	...	...	...	0.08	...	...	...	0.12	...
Cb	...	...	...	0.02	...	...	...	0.05	...
Mo	...	...	...	0.12	...	...	...	0.05	0.50
Co	...	...	...	...	...	...	...	...	0.50

*For Grade 1 and 6, each reduction of 0.01% C below 0.30%, an increase of 0.05 % Mn above 1.06 % would be permitted to a max. of 1.35%.
*For Grade 6, the limit for columbium may be increased up to 0.05 % on heat analysis and 0.06 % on product analysis.
*Generally, the carbon equivalent C.E = [C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15] shall not exceed 0.43% by heat analysis.

2. ASTM A333 Mechanical Properties

ASTM A333	Tensile Strength, min.		Yield Strength, min.		Elongation %, min.
Grade	psi	MPa	psi	MPa	Longitudinal	Transverse
Grade 1	55 000	380	30 000	205	35	25
Grade 3	65 000	450	35 000	240	30	20
Grade 4	60 000	415	35 000	240	30	16.5
Grade 6	60 000	415	35 000	240	30	16.5
Grade 7	65 000	450	35 000	240	30	22
Grade 8	100 000	690	75 000	515	22	...
Grade 9	63 000	435	46 000	315	28	...
Grade 10	80 000	550	65 000	450	22	...
Grade 11	65 000	450	35 000	240	18	...

*The elongation values are furnished on the basis of standard round 2 inch or 50 mm(or 4D) specimens.
*Elongation of Grade 11 is for all walls and small sizes tested in full section.

3. Charpy V-notch Impact Tests

Impact Requirements for Grades 1, 3, 4, 6, 7, 9, 10, and 11
Size of Specimen	*A		*B
mm	ft·lbf	J	ft·lbf	J
10 by 10	13	18	10	14
10 by 7.5	10	14	8	11
10 by 6.67	9	12	7	9
10 by 5	7	9	5	7
10 by 3.33	5	7	3	4
10 by 2.5	4	5	3	4

*A denotes minimum average notched bar impact value of each set of three specimens.
*B denotes minimum notched bar impact value of one specimen only of a set.

Minimum Impact Test Temperature of ASTM A333
Grade	°F	°C
1	-50	-45
3	-150	-100
4	-150	-100
6	-50	-45
7	-100	-75
8	-320	-195
9	-100	-75
10	-75	-60
11	-320	-195

* Impact tests speciﬁed for temperatures lower than 70 °F [20 °C] should be made with precautions.

Specification

NPS (in)	Outside Diameter (in)	ASTM A333 Grade 6 Carbon Steel Seamless Pipes Schedule
		SCH 10	SCH 20	SCH 30	SCH STD	SCH 40	SCH 60	SCH XS	SCH 80	SCH 100	SCH 120	SCH 140	SCH 160	SCH XXS
		Wall Thickness (in)
1/8	0.405				0.068	0.068		0.095	0.095
1/4	0.540				0.088	0.088		0.119	0.119
3/8	0.675				0.091	0.091		0.126	0.126
1/2	0.840				0.109	0.109		0.147	0.147				0.187	0.294
3/4	1.050				0.113	0.113		0.154	0.154				0.219	0.308
1	1.315				0.133	0.133		0.179	0.179				0.250	0.358
1 1/4	1.660				0.140	0.140		0.191	0.191				0.250	0.382
1 1/2	1.900				0.145	0.145		0.200	0.200				0.281	0.400
2	2.375				0.154	0.154		0.218	0.218				0.344	0.436
2 1/2	2.875				0.203	0.203		0.276	0.276				0.375	0.552
3	3.500				0.216	0.216		0.300	0.300				0.438	0.600
3 1/2	4.000				0.226	0.226		0.318	0.318
4	4.500				0.237	0.237		0.337	0.337		0.438		0.531	0.674
5	5.563				0.258	0.258		0.375	0.375		0.500		0.625	0.750
6	6.625				0.280	0.280		0.432	0.432		0.562		0.719	0.864
8	8.625		0.250	0.277	0.322	0.322	0.406	0.500	0.500	0.594	0.719	0.812	0.906	0.875
10	10.750		0.250	0.307	0.365	0.365	0.500	0.500	0.594	0.719	0.844	1.000	1.125	1.000
12	12.750		0.250	0.330	0.375	0.406	0.562	0.500	0.688	0.844	1.000	1.125	1.312	1.000
14	14.000	0.250	0.312	0.375	0.375	0.438	0.594	0.500	0.750	0.938	1.094	1.250	1.406
16	16.000	0.250	0.312	0.375	0.375	0.500	0.656	0.500	0.844	1.031	1.219	1.438	1.594
18	18.000	0.250	0.312	0.438	0.375	0.562	0.750	0.500	0.938	1.156	1.375	1.562	1.781
20	20.000	0.250	0.375	0.500	0.375	0.594	0.812	0.500	1.031	1.281	1.500	1.750	1.969
22	22.000	0.250	0.375	0.500	0.375		0.875	0.500	1.125	1.375	1.625	1.875	2.125
24	24.000	0.250	0.375	0.562	0.375	0.688	0.969	0.500	1.219	1.531	1.812	2.062	2.344
30	30.000	0.312	0.500	0.625	0.375			0.500
32	32.000	0.312	0.500	0.625	0.375	0.688
34	34.000	0.312	0.500	0.625	0.375	0.688
36	36.000	0.312	0.500	0.625	0.375	0.750
42	42.000		0.500	0.625	0.375	0.750

Product Show

Our seamless carbon steel pipes are manufactured from high-quality grades including ASTM A106, API 5L, and ASTM A53, available in sizes from 1/8" to 24" OD with wall thicknesses of SCH10 to SCH160. These pipes feature excellent pressure resistance and durability, making them ideal for oil & gas, petrochemical, and high-pressure fluid transportation applications. Custom lengths (6m-12m) and end treatments (beveled, threaded) available.

Produced using precision hot-rolled or cold-drawn processes, our seamless pipes undergo strict quality control during piercing, elongation, and sizing. Equipped with automated ultrasonic testing (UT) and eddy current inspection systems, we ensure consistent wall thickness (±10%) and superior internal/external surface quality. Annual capacity: 100,000 tons.

In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.

Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.

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