DOM Seamless Tubes

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Supplier Info.

Company Name Hunan Fushun Special Steel Ltd Co
Membership Free member
Registration Date2021.03.12
Country/RegionHong Kong
Cityhk
Contact harris lee(Mr.)

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Product Attributes

- Place of Origin China
- Supply Type In-Stock Items
- Condition New
- Related Keywords DOM Seamless Tubes

Description by Manufacturer

DOM Seamless Tubes

DOM Tubing (Drawn over Mandrel) is a cold drawn 1020 to 1026 or ST52.3 grade seamless steel tube to drawing to size. Cold drawing DOM to size allows for higher yield and tensile strengths. In comparison to other tubing, DOM is produced to more exact OD and ID tolerances. This allows for minimal machine time and has the highest strength possible.

DOM tubing

l Stocked and produced various size range

l Cut to length service available

l Suitable to hone sizes

l Custom sizes available upon request

l All the common off road sizes available

Benefits of DOM Tubing (Drawn over Mandrel):

l Uniform wall thickness with close OD and ID tolerances

l Uniform grain structure and controlled hardness

l High Yield and Tensile Strength

l Smooth and Clean OD and ID surfaces

l OD and ID concentric

l Excellent machining characteristics

APPLICATIONS

l Hydraulic Cylinders

l Auto and Truck Axles

l Suspension parts and shock absorbers

l High Speed Shafts and rollers

l Bearings and Spacers

l Roll cages

l Agricultural components and many other machined tubular parts.

l Pre-honed tube

Quality Standards:

l EN10305 Steel Tubes for Precision Applications Seamless Cold Drawn Tubes

l DIN 2391 Seamless Precision Steel Tubes

l ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing

Composition & Strength

Grade	Chemistry	%	Yield	Tensile	Elongation	Typical Hardness
			PSI	PSI	% in 2" section	Min
1020	Carbon	0.150 - 0.200	60000	70000	10	B-75
	MN	0.300 - 0.600
	P	0.035 Max
	S	0.035 Max
1026	Carbon	0.220 - 0.280	70000	80000	10	B-80
	MN	0.600 - 0.900
	P	0.035 Max
	S	0.035 Max
ST52.3	Carbon	0.140 - 0.180	75000	85000	15	B-80
	Si	0.150 - 0.300
	MN	1.200 - 1.400
	P	0.020 max
	S	0.010 max

Diameter Tolerances

OD Inches	Wall:	OD Inches		ID Inches
Size Range	Percent of OD	Plus	Minus	Plus	Minus
Up to 0.499	All	0.004	0
0.500-1.699	All	0.005	0	0	0.005
1.700-2.099	All	0.006	0	0	0.006
2.100-2.499	All	0.007	0	0	0.007
2.500-2.899	All	0.008	0	0	0.008
2.900-3.299	All	0.009	0	0	0.009
3.300-3.699	All	0.01	0	0	0.01
3.700-4.099	All	0.011	0	0	0.011
4.100-4.499	All	0.012	0	0	0.012
4.500-4.899	All	0.013	0	0	0.013
4.900-5.299	All	0.014	0	0	0.014
5.300-5.549	All	0.015	0	0	0.015
5.550-5.999	Under 6	0.01	0.01	0.01	0.01
5.550-5.999	6 and Over	0.009	0.009	0.009	0.009
6.000-6.499	Under 6	0.013	0.013	0.013	0.013
6.000-6.499	6 and Over	0.01	0.01	0.01	0.01
6.500-6.999	Under 6	0.015	0.015	0.015	0.015
6.500-6.999	6 and Over	0.012	0.012	0.012	0.012
7.000-7.499	Under 6	0.018	0.018	0.018	0.018
7.000-7.499	6 and Over	0.013	0.013	0.013	0.013
7.500-7.999	Under 6	0.02	0.02	0.02	0.02
7.500-7.999	6 and Over	0.015	0.015	0.015	0.015
8.000-8.499	Under 6	0.023	0.023	0.023	0.023
8.000-8.499	6 and Over	0.016	0.016	0.016	0.016
8.500-8.999	Under 6	0.025	0.025	0.025	0.025
8.500-8.999	6 and Over	0.017	0.017	0.017	0.017
9.000-9.499	Under 6	0.028	0.028	0.028	0.028
9.000-9.499	6 and Over	0.019	0.019	0.019	0.019
9.500-9.999	Under 6	0.03	0.03	0.03	0.03
9.500-9.999	6 and Over	0.02	0.02	0.02	0.02
10.000-10.999	All	0.034	0.034	0.034	0.034
11.000-11.999	All	0.035	0.035	0.035	0.035
12.000-12.999	All	0.036	0.036	0.036	0.036
13.000-13.999	All	0.037	0.037	0.037	0.037
14.000-15.000	All	0.038	0.038	0.038	0.038

Wall Tolerance

Wall Thickness	Including .375" to .875" OD		Over .875" to 1.875" OD		Over 1.875" to 3.750" OD		Over 3.750 "to 15.000" OD
(Inches)	Plus	Minus	Plus	Minus	Plus	Minus	Plus	Minus
0.035	0.002	0.002	0.002	0.002	0.002	0.002
0.049	0.002	0.002	0.002	0.003	0.002	0.003
0.065	0.002	0.002	0.002	0.003	0.003	0.003	0.004	0.004
0.083	0.002	0.002	0.002	0.003	0.003	0.003	0.004	0.005
0.095	0.002	0.002	0.002	0.003	0.003	0.003	0.004	0.005
0.109	0.002	0.003	0.002	0.004	0.003	0.003	0.005	0.005
0.12	0.003	0.003	0.002	0.004	0.003	0.003	0.005	0.005
0.134			0.002	0.004	0.003	0.003	0.005	0.005
0.148			0.002	0.004	0.003	0.003	0.005	0.005
0.165			0.003	0.004	0.003	0.004	0.005	0.006
0.18			0.004	0.004	0.003	0.005	0.006	0.006
0.203			0.004	0.005	0.004	0.005	0.006	0.007
0.22			0.004	0.006	0.004	0.006	0.007	0.007
0.238			0.005	0.006	0.005	0.006	0.007	0.007
0.259			0.005	0.006	0.005	0.006	0.007	0.007
0.284			0.005	0.006	0.005	0.006	0.007	0.007
0.3			0.006	0.006	0.006	0.006	0.008	0.008
0.32			0.007	0.007	0.007	0.007	0.008	0.008
0.344			0.008	0.008	0.008	0.008	0.009	0.009
0.375					0.009	0.009	0.009	0.009
0.4					0.01	0.01	0.01	0.01
0.438					0.011	0.011	0.011	0.011
0.46					0.012	0.012	0.012	0.012
0.48					0.012	0.012	0.012	0.012
0.531					0.013	0.013	0.013	0.013
0.563					0.013	0.013	0.013	0.013
0.58					0.014	0.014	0.014	0.014
0.6					0.015	0.015	0.015	0.015
0.625					0.016	0.016	0.016	0.016
0.65					0.017	0.017	0.017	0.017

Ovality shall be within the above tolerances except when the wall thickness is less than 3% of the OD. In those cases the additional ovality shall be as follows, but the mean diameter shall be within the specified tolerance.

Outside Diameter	Additional Ovality Tolerance (Inches)
(Inches)	Additional Ovality Tolerance (Inches)
Up to 2	0.01
Over 2 - 3	0.015
Over 3 - 4	0.02
Over 4 - 5	0.025
Over 5 - 6	0.03
Over 6 - 7	0.035
Over 7 - 8	0.04
Over 8 - 9	0.045
Over 9 - 10	0.05
Over 10 - 11	0.055
Over 11 - 12	0.06
Over 12 - 12.500	0.065
Outside Diameter	Straightness Tolerance for any 3' of Length
< 8.000"	0.030"
≥ 8.000"	0.060"

Pressure Ratings, Steel Tubing for General Hydraulic System Applications

The following chart lists the nominal pressure ratings of tubing products which conform to SAE J524, SAE J525, SAE J526 and SAE J365.

Nominal Tube O.D.		Nominal Tube Wall Thickness
Nominal Tube O.D.		0.028	0.035	0.049	0.065	0.083	0.093	0.109	0.120	0.134	0.148	0.156	0.188
inch	mm	0.71mm	0.89mm	1.24mm	1.65mm	2.11mm	2.41mm	2.77mm	3.05mm	3.40mm	3.76mm	3.96mm	4.78mm
Reference Working Pressures at 4:1 Design Factor(psi/MPa)
0.125		6650	8450
	3.18	46.0	58.5
0.188		4250	5450
	4.77	29.5	37.5
0.250		3100	3950	5750	7800
	6.35	21.5	27.0	39.5	54.0
0.312		2450	3100	4500	6150
	7.92	16.8	21.5	31.0	42.5
0.375		2000	2550	3650	5000	6550	7600
	9.53	13.8	17.6	25.0	34.5	45.0	52.5
0.500			1850	2700	3650	4800	5550	6450	7200
	12.70		12.8	18.6	25.0	33.0	38.5	44.5	49.5
0.625			1500	2100	2850	3750	4350	5050	5600
	15.88		10.4	14.5	19.6	26.0	30.0	35.0	38.5
0.750			1200	1750	2350	3050	3550	4150	4600
	19.05		8.3	12.0	16.2	21.0	24.5	28.5	31.5
0.875			1050	1500	2000	2600	3000	3500	3900
	22.23		7.2	10.4	13.8	18.0	20.5	24.0	27.0
1.000			900	1300	1750	2250	2600	3000	3350	3800	4200
	25.40		6.2	9.0	12.0	15.5	18.0	20.5	23.0	26.0	29.0
1.125				1150	1550	2000	2300	2650	2950	3300	3700
	28.58			7.9	10.6	13.8	15.8	18.2	20.5	23.0	25.5
1.250				1000	1350	1750	2050	2350	2650	2950	3300	3500	4300
	31.75			6.9	9.3	12.0	14.2	16.2	18.2	20.5	23.0	24.0	29.5
1.500					1150	1450	1700	1950	2150	2450	2700	2850	3500
	38.10				7.9	10.0	11.8	13.5	14.8	16.8	18.6	19.6	24.0
1.750					950	1250	1450	1650	1850	2050	2300	2400	2950
	44.45				6.6	8.6	10.0	11.4	12.8	14.2	15.8	16.6	20.5
2.000					850	1100	1250	1450	1600	1800	2000	2100	2550
	50.80				5.9	7.6	8.6	10.0	11.0	12.4	13.8	14.5	17.6

*Calculation of Design Pressures for Alternate Tubing Materials

*Design pressures for alternate tubing materials may be calculated using the Lame formula as follows: P=S((D2-d2)/(D2+d))where:

D= nominal outside diameter of tubing

d= nominal inside diameter of tubing

P= design pressure

S= allowable fiber stress of material at 4:1 design factor

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