Seamless Mechanical Steel Tube

Seamless Mechanical Steel Tube Tolerances, Cold Drawn Round Alloy Steel Diameter Tolerances, Wall Tolerances, Wall Thickness, Straightness Tolerances, Outside Diameter Size Range Inches

Cold Drawn Round Alloy Steel Suppliers, Seamless Mechanical Steel Tube Tolerances, Seamless Mechanical Steel Tube Diameter Tolerances, Seamless Mechanical Steel Tube Wall Tolerances, Wall Thickness, Seamless Mechanical Steel Tube Straightness Tolerances, Outside Diameter Size Range Inches

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Alloy Steel Tube

DESIGNATION OF ALLOY STEELS	AISI/SAE Alloy Steels /
HARDNESS CONVERSION TABLE	Approximate Relation of Brinell and Rockwell Hardness to Tensile Strength for Alloy Steel /
HOT ROLLED ROUND ALLOY STEEL	Diameter, Wall & Straightness /
COLD DRAWN ROUND ALLOY STEEL	Diameter, Wall & Straightness /
DOM MECHANICAL ALLOY TUBE TOLERANCES	Cold Drawn Round Welded & Drawn Over Mandrel (Diameter, Wall, Straightness, Ovality) /
WELDED MECHANICAL ALLOY STEEL TUBE TOLERANCES	As-Welded Round Hot Rolled Electric Weld (HREW) (Diameter, Wall, Inside Weld Flash) / As-Welded Round Cold Rolled Electric Weld (CREW) (Diameter, Wall, Inside Weld Flash) /
LOW CARBON ALLOY STEEL PRESSURE TUBE DATA	Heat Exchanger Tube Tolerances / Hydraulic Tube Tolerances / Typical Properties /
ALLOY STEEL TUBE SPECIFICATIONS	SAE/AMS Specifications / ASTM Specifications /
FLUID POWER ALLOY STEEL TUBING	Industry Codes / Industry Specifications (Material, Grade, Class, ASTM, AMS, MIL, Other) / Tube Properties (Material Grade & Class, Tensile PSI, Elong. % in 2”, Hardness) /
SQUARE & RECTANGULAR STRUCTURAL ALLOY STEEL TUBE	Industry Codes / Industry Specifications (Grade, Class, Type, Specifications) / Dimensional Tolerances (OD, Wall Thickness, Corner Radii, Twist, Straightness, Squareness, Flash) / Chemical Composition / Mechanical Properties /
SEAMLESS ALLOY STEEL TUBE	Industry Codes / Industry Specifications (Grade, Class, ASTM, AMS, MIL) / Tube Properties (Material Grade & Temper, Tensile KSI, Yield KSI, Elong. % in 2”, Hard. BHN) /
THEORETICAL BURSTING & BULGING PRESSURES FOR ALLOY STEEL TUBING

CLICK HERE FOR Steel Pipes and Weight, Weight of steel pipes and tubing, ANSI Pipe Chart

Seamless Mechanical Steel Tube Tolerances

Cold Drawn Round Alloy Steel

Seamless Mechanical Steel Tube Diameter Tolerances

OD Size Range, Inches	Wall: Percent of OD	Unannealed Or Stress Relief Annealed				Soft Annealed or Normalized				Oil Quenched & Tempered
		OD Inches		ID Inches		OD Inches		ID Inches		OD & ID
		Plus	Minus	Plus	Minus	Plus	Minus	Plus	Minus	Plus/Minus
Up to 0.499	All	.004	.000			.005	.002			.005
0.500-1.699	All	.005	.000	.000	.005	.007	.002	.002	.007	.007
1.700-2.099	All	.006	.000	.000	.006	.006	.005	.005	.006	.008
2.100-2.499	All	.007	.000	.000	.007	.008	.005	.005	.008	.009
2.500-2.899	All	.008	.000	.000	.008	.009	.005	.005	.009	.010
2.900-3.299	All	.009	.000	.000	.009	.011	.005	.005	.011	.012
3.300-3.699	All	.010	.000	.000	.010	.013	.005	.005	.013	.013
3.700-4.099	All	.011	.000	.000	.011	.013	.007	.010	.010	.014
4.100-4.499	All	.012	.000	.000	.012	.014	.007	.011	.011	.015
4.500-4.899	All	.013	.000	.000	.013	.016	.007	.012	.012	.017
4.900-5.299	All	.014	.000	.000	.014	.018	.007	.013	.013	.018
5.300-5.549	All	.015	.000	.000	.015	.020	.007	.014	.014	.019
5.550-5.999	Under 6	.010	.010	.010	.010	.018	.018	.018	.018	.025
	6 to 7¹/₂	.009	.009	.009	.009	.016	.016	.016	.016	.023
	Over 7¹/₂	.018	.000	.009	.009	.017	.015	.016	.016	.023
6.000-6.499	Under 6	.013	.013	.013	.013	.023	.023	.023	.023	.033
	6 to 7¹/₂	.010	.010	.010	.010	.018	.018	.018	.018	.025
	Over 7¹/₂	.020	.000	.010	.010	.020	.015	.018	.018	.025
6.500-6.999	Under 6	.015	.015	.015	.015	.027	.027	.027	.027	.038
	6 to 7¹/₂	.012	.012	.012	.012	.021	.021	.021	.021	.029
	Over 7¹/₂	.012	.012	.012	.012	.021	.021	.021	.021	.029
7.000-7.499	Under 6	.018	.018	.018	.018	.032	.032	.032	.032	.045
	6 to 7¹/₂	.013	.013	.013	.013	.023	.023	.023	.023	.033
	Over 7¹/₂	.026	.000	.013	.013	.031	.015	.023	.023	.033
7.500-7.999	Under 6	.020	.020	.020	.020	.035	.035	.035	.035	.050
	6 to 7¹/₂	.015	.015	.015	.015	.026	.026	.026	.026	.037
	Over 7¹/₂	.029	.000	.015	.015	.036	.015	.026	.026	.037
8.000-8.499	Under 6	.023	.023	.023	.023	.041	.041	.041	.041	.058
	6 to 7¹/₂	.016	.016	.016	.016	.028	.028	.028	.028	.040
	Over 7¹/₂	.031	.000	.015	.016	.033	.022	.028	.028	.040
8.500-8.999	Under 6	.025	.025	.025	.025	.044	.044	.044	.044	.063
	6 to 7¹/₂	.017	.017	.017	.017	.030	.030	.030	.030	.043
	Over 7¹/₂	.034	.000	.015	.019	.038	.022	.030	.030	.043
9.000-9.499	Under 6	.028	.028	.028	.028	.045	.045	.049	.049	.070
	6 to 7¹/₂	.019	.019	.019	.019	.033	.033	.033	.033	.047
	Over 7¹/₂	.037	.000	.015	.022	.043	.022	.033	.033	.047
9.500-9.999	Under 6	.030	.030	.030	.030	.045	.045	.053	.053	.075
	6 to 7¹/₂	.020	.020	.020	.020	.035	.035	.035	.035	.050
	Over 7¹/₂	.040	.000	.015	.025	.048	.022	.035	.035	.050
10.000-10.999	Under 6	.034	.034	.034	.034	.045	.045	.060	.060	.080
	6 to 7¹/₂	.022	.022	.022	.022	.039	.039	.039	.039	.055
	Over 7¹/₂	.044	.000	.015	.029	.055	.022	.039	.039	.055
11.000-12.000	Under 6	.035	.035	.035	.035	.050	.050	.065	.065
	6 to 7¹/₂	.025	.025	.025	.025	.045	.045	.045	.045
	Over 7¹/₂	.045	.000	.015	.035	.060	.022	.045	.045
Tabulated tolerances can be applied simultaneously to only two of three dimensions, i.e., ODxWall or IDxWall. ID Tolerances apply only to tube specified ODxID or IDxWall...and to dimensions 0.625" and over when ID is at least half the OD. Wall thickness less than 3% of OD, require added ovality tolerances of plus and minus ¹/₂% of mean OD. If water quench and temper is required or specified-refer to Mill for applicable tolerance.

Seamless Mechanical Steel Tube Wall Tolerances

Wall Thickness % of OD	Wall Tolerances Max% Over And Under Normal Wall
Wall Thickness % of OD	ID Under .500"	ID .500" Over
Under 10%	±10.0%	±7.5%
10 to 25%	±10.0%	±6.0%
Over 25%	±12.5%	±7.5%
ASTM-A-519 modified

Seamless Mechanical Steel Tube Straightness Tolerances

Outside Diameter Size Range Inches	Wall Percent Of Outside Diameter	Total Camber In Any 3 Feet
Up to 5.000"	3% OD & Over	.030"
5.001/8.000"	4% OD & Over	.045"
8.001/10.750"	4% OD & Over	.060"
Not applicable to quenched and tempered tubes over 302 BHN

The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes.

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