Meaning of Pipe Schedule | Pipe Schedule Chart | Pipe Schedule 40 & 80 Dimensions

The Pipe Schedule describes the pipe wall thickness. With an increase in pipe schedule number pipe thickness increases. The main function of the pipes is to carry fluid (liquid, gas, fluidized solids, slurry, mixed-phase products, etc.) under pressure (internal, external, or both), therefore to sustain the fluid pressure the pipe has to be strong enough to perform its intended duty without failure.  Obviously, for pipes containing pressurized fluids the wall thickness, and by implication the pipe’s strength, is the most important parameter. The wall thickness of the Pipe is expressed by “Schedules or Schedule numbers“, referred to as Pipe Schedules or Piping Schedules.

What is a Pipe Schedule?

The pipe Schedule or Pipe Schedule number of a Pipe is a dimensionless number that is related to Pipe Wall Thickness. The piping Schedule Number for a specific pipe size is a pipe thickness designator for that pipe size.

How to Calculate a Pipe Schedule?

Schedule Numbers for pipe size/wall thickness combinations are calculated (approximated) to get a uniform relationship equal to 1000 times the P/S (P=Design Pressure and S=Allowable Stress) expression contained in the modified Barlow formula for pipe wall thickness. The pipe schedule is abbreviated as SCH. So,

SCH=1000*(P/S)

Characteristics of Pipe Schedule

For a given pipe size and schedule the thickness of the pipe is fixed and defined in the applicable ASME standard (ASME B36.10M/ ASME B36.19M). Even though Pipe thickness can also be specified in mm or inches to the value corresponding to that specified in the ASME standard, The Schedule Numbers are strictly used as a convenient designation system while ordering piping items.

For any given pipe size and varying schedule numbers or thicknesses, its Outside Diameter (OD) remains constant and its Internal Diameter (ID) varies. With an increase in thickness, the strength increases but its ID decreases. OD is kept constant to help the support hardware design so that the same support hardware can be used for the same pipe size (varying thicknesses).

Pipe Schedule numbers can be the same for different pipe sizes but that does not mean the pipe thickness is the same. It may be the same or vary with respect to pipe sizes. For example, a 6-inch Schedule 40 pipe has 7.11 mm thickness, while an 8-inch Schedule 40 pipe has 8.18 mm thickness means thickness is increasing even though both Schedule 40.

Pipe Schedule Governing Standards

In the oil and gas and related downstream industries the most common standards are

• ASME B36.10 Welded and Seamless Wrought Steel Pipe, and
• ASME B36.19 Stainless Steel Pipe

What is the Nominal Pipe Size (NPS)?

The size of all pipes is identified by the nominal pipe size. The manufacture of pipe NPS 1⁄8 (DN 6) to NPS 12 (DN 300), inclusive, is based on a standardized outside diameter (OD). This OD was originally selected so that a pipe with a standard OD and a wall thickness that was typical of the period would have an inside diameter (ID) approximately equal to the nominal size. Although there is no such relation between the existing standard thickness, OD, and nominal size — these nominal sizes and standard ODs continue in use as ‘‘standard.’’

The manufacture of pipe NPS 14 (DN 350) and larger proceeds on the basis of an OD corresponding to the nominal size. So the OD in mm of a pipe NPS 14 or higher can easily be calculated by simply multiplying the NPS (here 14) by 25.4. But for lower sizes, the OD calculation is not so easy.

Pipe Schedule (SCH) vs Pipe Size

For all pipe sizes, the outside diameter remains constant. Therefore any variation in pipe schedule i.e. wall thickness affects only the inside diameter. As the pipe schedule number increases, the wall thickness increases, and the actual bore is reduced.

• Standard (STD) is identical to SCH 40 up to NPS 10. All larger sizes of Standard (STD Schedule) have 9.53 mm wall thicknesses.
• Extra-Strong (XS) is identical to SCH 80 up to NPS 8. All larger sizes of Extra-Strong have 12.70 mm wall thicknesses.
• The double Extra Strong (XXS) wall is thicker than SCH 160 from NPS 1/8 to NPS 6, and SCH 160 is thicker than the XXS wall for NPS 8 and larger.
• With an increase in pipe thickness internal diameter of the pipe reduces as the pipe’s outer diameter remains constant.

Pipe of sizes and wall thicknesses other than those of Standard, Extra-Strong, and Double Extra-Strong, and Schedule Number were adopted from API Specification 5L.

Pipe Schedule / Pipe Wall Thickness Calculation

The calculation of wall thickness varies depending on the usage of the code. All codes (B31.3, B31.1, IBR, B31.4, B31.8, nuclear code, etc.) provide equations for calculating the minimum wall thickness based on the pressure that the pipe has to withstand. The major parameters involved in thickness calculation are Design pressure, Pipe OD, and Allowable Stress at design temperature. After the calculation of minimum wall thickness, corrosion, and mechanical allowances need to be added to that. After that, the actual pipe thickness is selected (immediate higher size thickness of the calculated value) from ASME code tables depending on pipe material (CS or SS).

You may be interested in the following two articles:

Pipe Thickness Calculation as per ASME B31.3
Pipeline wall thickness calculation with example

Pipe Schedule Chart | Pipe Size Chart

A pipe size chart or pipe schedule chart is a tabular representation of pipe NPS and their thicknesses with respect to various schedule numbers. The wall thickness associated with a particular schedule depends on the pipe size. Dimensions (OD, ID, Thickness, and Schedule Number) and Weights of CS and SS pipes are given in the ASME standards mentioned above.  The tables in the respective codes are dimensionally complete for all sizes and wall thicknesses within its scope, but some of the larger, heavier wall sections are beyond the capability of seamless mill production and must be obtained from forged and bored billets or other sources.

Stainless steel pipe is more often available in standard weight sizes (noted by the “S” designation, for example, “NPS SCH 10S”). However stainless steel pipe can also be available in other schedules.

Abbreviations used:

• STD – Standard,
• XS – Extra Strong,
• XXS – Double Extra Strong,

A Pipe Schedule chart or pipe size chart is provided in the following table with respect to nominal pipe size and pipe thicknesses.

NPS	OD (in)	ID (in)	Schedules (SCH)	Pipe Wall Thick-ness (inches)	Steel Pipe Weight (lb/ft)	OD (mm)	ID (mm)	Pipe Wall Thickness (inches)	Steel Pipe Weight (kg/m)
1/8″	0.41	0.31	10, 10S	0.05	0.19	10.29	7.80	1.24	0.28
		0.27	40, STD, 40S	0.07	0.24	10.29	6.83	1.73	0.36
		0.22	80, XS, 80S	0.10	0.31	10.29	5.46	2.41	0.47
1/4″	0.54	0.41	10, 10S	0.07	0.33	13.72	10.41	1.65	0.49
		0.36	40, STD, 40S	0.09	0.42	13.72	9.25	2.24	0.63
		0.30	80, XS, 80S	0.12	0.54	13.72	7.67	3.02	0.80
3/8″	0.68	0.55	10, 10S	0.07	0.42	17.15	13.84	1.65	0.63
		0.49	40, STD, 40S	0.09	0.57	17.15	12.52	2.31	0.84
		0.42	80, XS, 80S	0.13	0.74	17.15	10.74	3.20	1.10
1/2″	0.84	0.67	10, 10S	0.08	0.67	21.34	17.12	2.11	1.00
		0.62	40, STD, 40S	0.11	0.85	21.34	15.80	2.77	1.27
		0.55	80, XS, 80S	0.15	1.09	21.34	13.87	3.73	1.62
		0.47	160.00	0.19	1.30	21.34	11.84	4.75	1.94
		0.25	XXS	0.29	1.71	21.34	6.40	7.47	2.55
3/4″	1.05	0.88	10, 10S	0.08	0.86	26.67	22.45	2.11	1.28
		0.82	40, STD, 40S	0.11	1.13	26.67	20.93	2.87	1.68
		0.74	80, XS, 80S	0.15	1.47	26.67	18.85	3.91	2.19
		0.61	160.00	0.22	1.94	26.67	15.60	5.54	2.88
		0.43	XXS	0.31	2.44	26.67	11.02	7.82	3.63
1″	1.32	1.10	10, 10S	0.11	1.40	33.40	27.86	2.77	2.09
		1.05	40, STD, 40S	0.13	1.68	33.40	26.65	3.38	2.50
		0.96	80, XS, 80S	0.18	2.17	33.40	24.31	4.55	3.23
		0.82	160.00	0.25	2.84	33.40	20.70	6.35	4.23
		0.60	XXS	0.36	3.66	33.40	15.22	9.09	5.45
1 1/4″	1.66	1.44	10, 10S	0.11	1.81	42.16	36.63	2.77	2.69
		1.38	40, STD, 40S	0.14	2.27	42.16	35.05	3.56	3.38
		1.28	80, XS, 80S	0.19	3.00	42.16	32.46	4.85	4.46
		1.16	160.00	0.25	3.77	42.16	29.46	6.35	5.60
		0.90	XXS	0.38	5.21	42.16	22.76	9.70	7.76
1 1/2″	1.90	1.68	10, 10S	0.11	2.09	48.26	42.72	2.77	3.10
		1.61	40, STD, 40S	0.15	2.72	48.26	40.89	3.68	4.04
		1.50	80, XS, 80S	0.20	3.63	48.26	38.10	5.08	5.40
		1.34	160.00	0.28	4.86	48.26	33.96	7.14	7.23
		1.10	XXS	0.40	6.41	48.26	27.94	10.16	9.54
2″	2.38	2.16	10, 10S	0.11	2.64	60.33	54.79	2.77	3.93
		2.07	40, STD, 40S	0.15	3.85	60.33	52.50	3.91	5.73
		1.94	80, XS, 80S	0.22	5.02	60.33	49.25	5.54	7.47
		1.69	160.00	0.34	7.46	60.33	42.90	8.74	11.10
		1.50	XXS	0.44	9.03	60.33	38.18	11.07	13.44
2 1/2″	2.88	2.64	10, 10S	0.12	3.53	73.03	66.93	3.05	5.25
		2.47	40, STD, 40S	0.20	5.79	73.03	62.71	5.16	8.62
		2.32	80, XS, 80S	0.28	7.65	73.03	59.00	7.01	11.39
		2.13	160.00	0.38	10.01	73.03	53.98	9.53	14.90
		1.77	XXS	0.55	13.70	73.03	44.98	14.02	20.39
3″	3.50	3.26	10, 10S	0.12	4.33	88.90	82.80	3.05	6.45
		3.07	40, STD, 40S	0.22	7.58	88.90	77.93	5.49	11.27
		2.90	80, XS, 80S	0.30	10.25	88.90	73.66	7.62	15.25
		2.62	160.00	0.44	14.32	88.90	66.65	11.13	21.31
		2.30	XXS	0.60	18.58	88.90	58.42	15.24	27.65
3 1/2″	4.00	3.76	10, 10S	0.12	4.94	101.60	95.50	3.05	7.35
		3.55	40, STD, 40S	0.23	9.11	101.60	90.12	5.74	13.56
		3.36	80, XS, 80S	0.32	12.51	101.60	85.45	8.08	18.62
		2.73	XXS	0.64	22.85	101.60	69.29	16.15	34.00
4″	4.50	4.26	10, 10S	0.12	5.61	114.30	108.20	3.05	8.35
		4.03	40, STD, 40S	0.24	10.79	114.30	102.26	6.02	16.06
		3.83	80, XS, 80S	0.34	14.98	114.30	97.18	8.56	22.29
		3.62	120.00	0.44	19.00	114.30	92.05	11.13	28.28
		3.44	160.00	0.53	22.51	114.30	87.33	13.49	33.50
		3.15	XXS	0.67	27.54	114.30	80.06	17.12	40.98
4 1/2″	5.00	4.51	STD, 40S	0.25	12.54	127.00	114.45	6.27	18.66
		4.29	XS, 80S	0.36	17.61	127.00	108.97	9.02	26.21
5″	5.56	5.30	10, 10S	0.13	7.77	141.30	134.49	3.40	11.56
		5.05	40, STD, 40S	0.26	14.62	141.30	128.19	6.55	21.76
		4.81	80, XS, 80S	0.38	20.78	141.30	122.25	9.53	30.92
		4.56	120.00	0.50	27.04	141.30	115.90	12.70	40.24
		4.31	160.00	0.63	32.96	141.30	109.55	15.88	49.05
		4.06	XXS	0.75	38.55	141.30	103.20	19.05	57.37
6″	6.63	6.36	10, 10S	0.13	9.29	168.28	161.47	3.40	13.83
		6.07	40, STD, 40S	0.28	18.97	168.28	154.05	7.11	28.23
		5.76	80, XS, 80S	0.43	28.57	168.28	146.33	10.97	42.52
		5.50	120.00	0.56	35.39	168.28	139.73	14.27	52.67
		5.19	160.00	0.72	43.35	168.28	131.80	18.26	64.51
		4.90	XXS	0.86	53.16	168.28	124.38	21.95	79.11
8″	8.63	8.33	10, 10S	0.15	13.40	219.08	211.56	3.76	19.94
		8.13	20.00	0.25	22.36	219.08	206.38	6.35	33.28
		8.07	30.00	0.28	24.70	219.08	205.00	7.04	36.76
		7.98	40, STD, 40S	0.32	28.55	219.08	202.72	8.18	42.49
		7.81	60.00	0.41	35.64	219.08	198.45	10.31	53.04
		7.63	80, XS, 80S	0.50	43.39	219.08	193.68	12.70	64.57
		7.44	100.00	0.59	50.95	219.08	188.95	15.09	75.82
		7.19	120.00	0.72	61.71	219.08	182.60	18.26	91.83
		7.00	140.00	0.81	67.76	219.08	177.83	20.62	100.84
		6.81	160.00	0.91	74.79	219.08	173.05	23.01	111.30
		6.88	XXS	0.88	72.42	219.08	174.63	22.23	107.77
10″	10.75	10.42	10, 10S	0.17	18.65	273.05	264.67	4.19	27.75
		10.25	20.00	0.25	28.04	273.05	260.35	6.35	41.73
		10.14	30.00	0.31	34.24	273.05	257.45	7.80	50.95
		10.02	40, STD, 40S	0.37	40.48	273.05	254.51	9.27	60.24
		9.75	60, XS, 80S	0.50	54.74	273.05	247.65	12.70	81.46
		9.56	80.00	0.59	64.43	273.05	242.93	15.09	95.88
		9.31	100.00	0.72	77.03	273.05	236.58	18.26	114.63
		9.06	120.00	0.84	82.29	273.05	230.23	21.44	122.46
		8.75	140, XXS	1.00	104.10	273.05	222.25	25.40	154.92
		8.50	160.00	1.13	115.60	273.05	215.90	28.58	172.03
12″	12.75	12.39	10, 10S	0.18	24.16	323.85	314.71	4.57	35.95
		12.25	20.00	0.25	33.38	323.85	311.15	6.35	49.67
		12.09	30.00	0.33	43.77	323.85	307.09	8.38	65.14
		12.00	STD, 40S	0.38	49.56	323.85	304.80	9.53	73.75
		11.94	40.00	0.41	53.52	323.85	303.23	10.31	79.65
		11.75	XS, 80S	0.50	65.42	323.85	298.45	12.70	97.36
		11.63	60.00	0.56	73.15	323.85	295.30	14.27	108.86
		11.38	80.00	0.69	88.63	323.85	288.95	17.48	131.90
		11.06	100.00	0.84	107.90	323.85	281.03	21.44	160.57
		10.75	120, XXS	1.00	125.50	323.85	273.05	25.40	186.76
		10.50	140.00	1.13	136.70	323.85	266.70	28.58	203.43
		10.13	160.00	1.31	150.30	323.85	257.20	33.32	223.67
14″	14.00	13.62	10S	0.19	27.73	355.60	346.05	4.78	41.27
		13.50	10.00	0.25	36.71	355.60	342.90	6.35	54.63
		13.38	20.00	0.31	45.61	355.60	339.73	7.92	67.88
		13.25	30, STD, 40S	0.38	54.57	355.60	336.55	9.53	81.21
		13.12	40.00	0.44	63.44	355.60	333.35	11.13	94.41
		13.00	XS, 80S	0.50	72.09	355.60	330.20	12.70	107.28
		12.81	60.00	0.59	85.05	355.60	325.48	15.09	126.57
		12.50	80.00	0.75	106.10	355.60	317.50	19.05	157.89
		12.12	100.00	0.94	130.90	355.60	307.95	23.83	194.80
		11.81	120.00	1.09	150.80	355.60	300.08	27.69	224.42
		11.50	140.00	1.25	170.20	355.60	292.10	31.75	253.29
		11.19	160.00	1.41	189.10	355.60	284.18	35.71	281.41
16″	16.00	15.62	10S	0.19	31.75	406.40	396.85	4.78	47.25
		15.50	10.00	0.25	42.05	406.40	393.70	6.35	62.58
		15.38	20.00	0.31	52.27	406.40	390.53	7.92	77.79
		15.25	30, STD, 40S	0.38	62.58	406.40	387.35	9.53	93.13
		15.00	40, XS, 80S	0.50	82.77	406.40	381.00	12.70	123.18
		14.69	60.00	0.66	107.50	406.40	373.08	16.66	159.98
		14.31	80.00	0.84	136.60	406.40	363.58	21.44	203.28
		13.94	100.00	1.03	164.80	406.40	354.03	26.19	245.25
		13.56	120.00	1.22	192.40	406.40	344.53	30.99	286.32
		13.12	140.00	1.44	223.60	406.40	333.35	36.53	332.75
		12.81	160.00	1.59	245.30	406.40	325.48	40.49	365.05
18″	18.00	17.62	10S	0.19	35.76	457.20	447.65	4.78	53.22
		17.50	10.00	0.25	47.99	457.20	444.50	6.35	71.42
		17.38	20.00	0.31	58.94	457.20	441.33	7.92	87.71
		17.25	STD, 40S	0.38	70.59	457.20	438.15	9.53	105.05
		17.12	30.00	0.44	82.15	457.20	434.95	11.13	122.25
		17.00	XS, 80S	0.50	93.45	457.20	431.80	12.70	139.07
		16.88	40.00	0.56	104.70	457.20	428.65	14.27	155.81
		16.50	60.00	0.75	138.20	457.20	419.10	19.05	205.66
		16.13	80.00	0.94	170.90	457.20	409.60	23.83	254.33
		15.69	100.00	1.16	208.00	457.20	398.48	29.36	309.54
		15.25	120.00	1.38	244.10	457.20	387.35	35.05	363.26
		14.88	140.00	1.56	274.20	457.20	377.85	39.67	408.05
		14.44	160.00	1.78	308.50	457.20	366.73	45.24	459.10
20″	20.00	19.56	10S	0.22	48.05	508.00	496.93	5.54	71.51
		19.50	10.00	0.25	52.73	508.00	495.30	6.35	78.47
		19.25	20, STD, 40S	0.38	78.60	508.00	488.95	9.53	116.97
		19.00	30, XS, 80S	0.50	104.10	508.00	482.60	12.70	154.92
		18.81	40.00	0.59	123.10	508.00	477.82	15.09	183.19
		18.38	60.00	0.81	155.40	508.00	466.75	20.62	231.26
		17.94	80.00	1.03	208.90	508.00	455.63	26.19	310.88
		17.44	100.00	1.28	256.10	508.00	442.93	32.54	381.12
		17.00	120.00	1.50	296.40	508.00	431.80	38.10	441.09
		16.50	140.00	1.75	341.10	508.00	419.10	44.45	507.61
		16.06	160.00	1.97	379.20	508.00	408.03	50.01	564.31
24″	24.00	23.50	10, 10S	0.25	63.41	609.60	596.90	6.35	94.36
		23.25	20, STD, 40S	0.38	96.42	609.60	590.55	9.53	143.49
		23.00	XS, 80S	0.50	125.50	609.60	584.20	12.70	186.76
		22.88	30.00	0.56	140.70	609.60	581.05	14.27	209.38
		22.63	40.00	0.69	171.30	609.60	574.70	17.48	254.92
		22.06	60.00	0.97	238.40	609.60	560.43	24.61	354.78
		21.56	80.00	1.22	296.80	609.60	547.73	30.96	441.69
		20.94	100.00	1.53	357.40	609.60	531.83	38.89	531.87
		20.38	120.00	1.81	429.40	609.60	517.55	46.02	639.02
		19.88	140.00	2.06	483.10	609.60	504.85	52.37	718.93
		19.31	160.00	2.34	542.10	609.60	490.58	59.54	806.73
30″	30.00	29.38	10, 10S	0.31	98.93	762.00	746.15	7.92	147.22
		29.25	STD, 40S	0.38	118.65	762.00	742.95	9.53	176.57
		29.00	20, XS, 80S	0.50	157.53	762.00	736.60	12.70	234.43
		28.75	30.00	0.63	196.06	762.00	730.25	15.88	291.77
36″	36.00	35.38	10.00	0.31	118.92	914.40	898.55	7.92	176.97
		35.25	STD, 40S	0.38	142.68	914.40	895.35	9.53	212.33
		35.00	XS, 80S	0.50	189.57	914.40	889.00	12.70	282.11
		34.75	30.00	0.63	235.13	914.40	882.65	15.88	349.91
48″	48.00	47.25	STD, 40S	0.38	190.74	1219.20	1200.20	9.53	283.85
		47.00	XS, 80S	0.50	253.65	1219.20	1193.80	12.70	377.47

Pipe Schedule 40 Dimensions

Pipe Schedule 40 is a basic pipe thickness designator. It only denotes that for a given material, Sch 40 Pipes can withstand certain pressures. Schedule 40 for a pipe is identical to Schedule STD for pipe sizes up to NPS 10.

The following table will provide an example of Schedule 40 Steel Pipe Dimensions.

Pipe NPS	Schedule No	Outside Diameter, Inches	Wall Thickness, inches	Plain End Weight, lb/ft	Outside Diameter, mm	Wall Thickness, mm	Plain End Mass, Kg/m
1/8	40/STD	0.405	0.068	0.24	10.3	1.73	0.37
1⁄4	40/STD	0.540	0.088	0.43	13.7	2.24	0.63
3⁄8	40/STD	0.675	0.091	0.57	17.1	2.31	0.84
1⁄2	40/STD	0.840	0.109	0.85	21.3	2.77	1.27
3⁄4	40/STD	1.050	0.113	1.13	26.7	2.87	1.69
1	40/STD	1.315	0.133	1.68	33.4	3.38	2.50
1-1⁄4	40/STD	1.660	0.140	2.27	42.2	3.56	3.39
1-1⁄2	40/STD	1.900	0.145	2.72	48.3	3.68	4.05
2	40/STD	2.375	0.154	3.66	60.3	3.91	5.44
2-1⁄2	40/STD	2.875	0.203	5.80	73.0	5.16	8.63
3	40/STD	3.500	0.216	7.58	88.9	5.49	11.29
4	40/STD	4.500	0.237	10.80	114.3	6.02	16.08
5	40/STD	5.563	0.258	14.63	141.3	6.55	21.77
6	40/STD	6.625	0.280	18.99	168.3	7.11	28.26
8	40/STD	8.625	0.322	28.58	219.1	8.18	42.55
10	40/STD	10.750	0.365	40.52	273.0	9.27	60.29
12	40	12.750	0.406	53.57	323.8	10.31	79.71
14	40	14.000	0.438	63.50	355.6	11.13	94.55
16	40	16.000	0.500	82.85	406.4	12.70	123.31
18	40	18.000	0.562	104.76	457	14.27	155.81
20	40	20.000	0.594	123.23	508	15.09	183.43
24	40	24.000	0.688	171.45	610	17.48	255.43
32	40	32.000	0.688	230.29	813	17.48	342.94
34	40	34.000	0.688	245.00	864	17.48	364.92
36	40	36.000	0.750	282.62	914	19.05	420.45

Pipe Schedule 80 Dimensions

Pipe Schedule 80 has more thicknesses as compared to SCH 40 pipes. So, automatically Sch 80 Steel Pipes are stronger. The following table provides the dimensions for Pipe Schedule 80 Steel Pipes.

Nominal size, NPS	Outside diameter, in	Wall thickness, in	Weight, lb/ft	Outside diameter, mm	Wall thickness, mm	Weight, kg/m
1/8	0.405	0.095	0.31	10.3	2.41	0.47
1/4	0.54	0.119	0.54	13.7	3.02	0.8
1/2	0.84	0.147	1.09	21.3	3.73	1.62
3/4	1.05	0.154	1.47	26.7	3.91	2.2
1	1.315	0.179	2.17	33.4	4.55	3.24
1 1/4	1.66	0.191	3	42.2	4.85	4.47
1 1/2	1.9	0.2	3.63	48.3	5.08	5.41
2	2.375	0.218	5.02	60.3	5.54	7.48
2 1/2	2.875	0.276	7.66	73	7.01	11.41
3	3.5	0.3	10.25	88.9	7.62	15.27
3 1/2	4	0.318	12.5	101.6	8.08	18.63
4	4.5	0.337	14.98	114.3	8.56	22.32
5	5.563	0.375	20.78	141.3	9.53	30.97
6	6.625	0.432	28.57	168.3	10.97	42.56
8	8.625	0.5	43.39	219.1	12.7	64.64
10	10.75	0.594	64.43	273	15.09	96.01
12	12.75	0.688	88.63	323.8	17.48	132.08
14	14	0.75	106.13	355.6	19.05	158.1
16	16	0.844	136.61	406.4	21.44	203.53
18	18	0.938	170.92	457	23.83	254.55
20	20	1.031	208.87	508	26.19	311.17
24	24	1.125	296.58	610	30.96	442.08