Type L vs. Type M Copper Pipes: What’s the Difference?

Copper Pipe and Tube:

Copper Pipes have long been the standard hard pipe in the plumbing industry, and they are also used in healthcare to transport medicinal gases. Copper Pipes have proven to be extremely long-lasting. Copper Pipe and Tube are popular due to their ability to withstand extreme cold and heat. Copper pipes are recyclable and can be installed outdoors. Copper Pipes are highly flexible and can extend long distances throughout the home. Copper Pipe is extremely durable, it does not require any additional support materials to meet your specifications. Copper tube is frequently used in HVAC systems to deliver hot and cold tap water as well as a refrigerant line. The two main types of copper tubing are soft copper tubing and rigid copper tubing. To join copper tubing, a flared attachment, compression connection, or solder is used.

Manibhadra Fittings is one of the leading Copper Tubes manufacturers in India. Copper has a high resistance to corrosion, but it is becoming increasingly expensive. There are two types of copper tubes: rigid copper and soft copper. Copper tubes are most often used to supply cold or hot tap water, but they can also be used in HVAC systems as a refrigerant thread. Type L, Type DWV, Type K, and Type M are the most common thicknesses available for tubes made of copper in the United States and Canada.

The Distinctions Between Copper Types L and M

  • The primary distinction between types L and M is their pressure rating and wall thickness. The most common sizes of copper pipe are 12 and 34 inches.
  • Type M ½ inch has a wall thickness of 0.028” and type L ½ inch has a wall thickness of 0.04”. The wall thickness of type M ¾ inch is 0.032”, while type L ¾ inch is 0.045”.
  • In general, type L is more expensive than type M. The reason for the price difference is that type L has thicker walls and thus weighs more.
  • As a result, type l needs more copper to produce, resulting in a higher production cost than type M. Since type L weighs more than type M, the cost of transportation is also higher.
  • Copper pipes of similar size and type have the same external diameter, making them suitable for making plumbing connections with the same fitting.
  • Because of the different wall thicknesses, the interior diameter varies depending on the form. Form M ½  inch, for example, has a diameter of 0.569” and type L ½  inch has a diameter of 0.545”.

Copper Pipe and Tube: Types, Standards, Applications, Lengths

Manibhadra Fittings is a well-known Copper Tube Manufacturer in India. We provide copper tubes with a full range of outer diameter and wall thickness combinations, designed to exact specifications to meet the highest standards of performance as demanded by the refrigeration and air conditioning industry.

Tube typeColour codeStandardApplicationsCommercially available lengths
Nominal or standard sizesDrawnAnnealed
Type KGreenASTM B 88 3– Domestic water service and distribution

– Fire protection

– Solar

– Fuel/fuel oil

– HVAC

– Snow melting

– Compressed air

– Natural gas

– Liquified petroleum (LP) gas

– Vacuum

Straight lengths:
1/4 inch to 8 inch20 ft.20 ft.
10 inch18 ft.18 ft.
12 inch12 ft.12 ft.
Coils:
1/4 inch to 1 inch60 ft.
100 ft.
1-1/4 inch and 1-1/2 inch60 ft.
2 inch40 ft.
45 ft.
Type LBlueASTM B 88– Domestic water service and distribution

– Fire protection

– Solar

– Fuel/fuel oil

– Natural gas

– Liquified petroleum (LP) gas

– HVAC

– Snow melting

– Compressed air

– Vacuum

Straight lengths:
1/4 inch to 10 inch20 ft.20 ft.
12 inch18 ft.18 ft.
Coils:
1/4 to 1 inch60 ft.
100 ft.
1-1/4 inch to 1-1/2 inch60 ft.
2 inch40 ft.
45 ft.
Type MRedASTM B 88– Domestic water service and distribution

– Fire protection

– Solar

– Fuel/fuel oil

– HVAC

– Snow melting

– Vacuum

Straight lengths:
1/4 inch to 12 inch20 ft.N/A
DWVYellowASTM B 306– Drain, waste, vent

– HVAC

– Solar

Straight lengths:
1-1/4 inch to 8 inch20 ft.N/A
ACRBlueASTM B 280– Air conditioning

– Refrigeration

– Natural gas

– Liquefied petroleum (LP) gas

– Compressed air

Straight lengths:
1/4 inch to 4-1/8 inch20 ft.4
Coils:
1/8 inch to 1-5/8 inch50 ft.
OXY, MED

OXY/MED

OXY/ACR

ACR/MED

(K) Green

(L) Blue

ASTM B 819– Medical gas

– Compressed medical air

– Vacuum

Straight lengths:
1/4 inch to 8 inch20 ft.N/A

1 There are many other copper and copper alloy tubes and pipes available for specialized applications. For information on these products, contact the Manibhadra Fittings.

2 Individual manufacturers may have commercially available lengths in addition to those shown in this table.

3 Tube made to other ASTM standards is also intended for plumbing applications, although ASTM B 88 is by far the most widely used. ASTM Standard Classifications B 698 lists six plumbing tube standards including B 88.

4 Available as special order only.

Copper Pipe and Tube Standard Specification and Size Range

Copper Tubes are available at Manibhadra Fittings in different dimensions. We also supply and export 15mm Copper Pipes & Tubes as per the drawings or client requirements. Our specialization in Copper Tubes has made us a household name in India. With a happy clientele Copper tube, we are proudly able to say that we are one of the top dealers of Copper Tubes.

BSISOENDESCRIPTION
C101Cu-ETPCW004AElectrolytic, tough pitch, high conductive copper
C103Cu-OFCW008AOxygen-free high conductivity copper
C111Cu-SCW114CSulphur copper (free machining)
C109Cu-TEPCW118CTellurium copper (free cutting)
C101Cu-Ag-2CW011ASilver-bearing Copper
C101Cu-Ag-3CW012ASilver-bearing Copper
C101Cu-Ag-4CW013ASilver-bearing Copper
CC102CuCr1ZrCW106CCopper Chrome Zirconium

 

SizeActual

outer diameter,

inches

Type
KLM
Actual inner diameter, inches
3/81/20.4020.4300.450
1/25/80.5280.5450.569
5/83/40.6520.6680.690
3/47/80.7450.7850.811
11 1/80.9951.0251.055
1 3/81.2451.2651.291
1 5/81.4811.5051.527
22 1/81.9591.9852.009
available

in these forms

drawn temper20-foot

lengths

20-foot

lengths

20-foot

lengths

annealed temper60-foot, 100-foot,

and 200-foot coils

60-foot, 100-foot,

and 200-foot coils

not made

 

ItemCopper Pipe, Copper Tube, Copper Coil Tubing
Material
  • T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, CZ109 CZ107 CZ106 CZ103etc
StandardASTM B75M-02 ASTM B42-02 ASTM B111M-04 JIS G3300-2006
Hardness1/6 hard, 1/8 hard, 3/8 hard, 1/4 hard, 1/2 hard, full hard, soft, etc
SpecificationOD:2mm~914mm, WT:0.2mm~120mm
Outer Diameter2mm~914mm
Thickness0.2mm~120mm
Length1m, 2m, 3m, 4m, 6m, or as required, 1m, 2m, 3m, or as required
Alloy Or NotNon-alloy
Copper Tubing Sizes3.35 mm OD To 101.6 mm OD, 15 NB to 150 NB IN
Wall Thickness0.2mm~120mm
Swg & Bwg10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
Copper tube LengthSingle Random, Double Random, Standard & Cut a length
Copper Tube FinishPolished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
Copper tube FormRound, Coil, Square, Rectangular, Boiler, Hydraulic, Straight or ‘U’ bent Tubes, Hollow, LSAW Tubes Etc.
Copper Tube TypeSeamless, ERW, EFW, Welded, Fabricated

  • ACR & HVAC Copper Tubing
  • Finned Copper Tube
  • Flexible Copper Tubing
  • Hard Copper Tubing
  • Type K Copper Tubing
  • Type L Copper Tubing
  • Type M Copper Tubing
  • Type DWV Copper Tubing
  • Copper Water Tubing
  • Flexible Copper Tubing
  • Soft Copper Tubing
ColourGolden
EndPlain End, Beveled End, Treaded
MarkingAll Copper tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)
ApplicationOil Tube, Gas Tube, Fluid Tube, Boiler and Heat exchanger
Value Added ServiceDraw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc.
Surfacemill, polished, bright, hairline, mirror, brush, sandblast, etc
Specialize inCopper Capillary Tube & Other Odd Size

Copper Heat Exchanger & Condenser Tubes

Export toIreland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, Russia, Chile, India, Egypt, Oman, Kuwait, Egypt, VietNam, England, Holland, Mexico, Peru, Malaysia, Italy, Nigeria, etc
Supply Ability3000 Metric Ton/Metric Tons per Month Standard size in stock
Container Size20ft GP: 5898mm (Length) x 2352mm (Width) x 2393mm (High)

40ft GP: 12032mm (Length) x 2352mm (Width) x 2393mm (High)

40ft HC: 12032mm (Length) x 2352mm (Width) x 2698mm (High)

Test CertificateManufacturer Test Certificate

Laboratory Test Certificate from Govt. Approved Lab.

Under Third Party Inspection

We can also cut, thread, and groove Copper Tubes to meet your specifications

 

Copper Tubes Manufacturer in India

Copper Tubes Supplier in India

Features of Copper Pipes and Tube

  1. High strength
  2. Excellent finish
  3. Chemical resistance
  4. Thermal resistance
  5. Dimensional accuracy
  6. Leakproof and Durable
  7. High energy absorption.
  8. Good workability and weldability.
  9. Good sulfide stress corrosion resistance
  10. High resistance to pitting, crevice corrosion resistance
  11. High resistance to stress corrosion cracking, corrosion fatigue, and erosion
  12. Low thermal expansion and higher heat conductivity than authenticate steels

Dimensions and Physical Characteristics of Copper Tube: Type K

Nominal or standard size, inchesNominal dimensions, inchesCalculated values (based on nominal dimensions)
Outside diameterInside diameterWall thicknessThe cross-sectional area of the bore, sq. inchesWeight of tube only, pounds per linear ft.Weight of tube & water, pounds per linear ft.Volume of the tube, per linear ft.
Cu ft.Gal.
14.375.305.035.073.145.177.00051.00379
38.500.402.049.127.269.324.00088.00660
12.625.527.049.218.344.438.00151.0113
58.750.652.049.334.418.562.00232.0174
34.875.745.065.436.641.829.00303.0227
11.125.995.065.778.8391.18.00540.0404
1141.3751.245.0651.221.041.57.00847.0634
1121.6251.481.0721.721.362.10.0119.0894
22.1251.959.0833.012.063.36.0209.156
2122.6252.435.0954.662.934.94.0324.242
33.1252.907.1096.644.006.87.0461.345
3123.6253.385.1209.005.129.01.0625.468
44.1253.857.13411.76.5111.6.0813.608
55.1254.805.16018.19.6717.5.126.940
66.1255.741.19225.913.925.1.1801.35
88.1257.583.27145.225.945.4.3142.35
1010.1259.449.33870.140.370.6.4873.64
1212.12511.315.40510157.8101.7015.25

Related Types of Copper Pipes / Tubes

Dimensions and Physical Characteristics of Copper Tube: ACR (Air-Conditioning and Refrigeration Field Service)

Nominal or Standard Size, inchesNominal dimensions, inchesCalculated values (based on nominal dimensions)
Outside diameterInside diameterWall thicknessThe cross-sectional area of the bore, sq. inchesExternal surface, sq. ft. per linear ft.Internal surface, sq. ft. per linear ft.Weight of tube only, pounds per linear ft.Volume of the tube, cu. ft. per linear ft.
18A.125.065.030.00332.0327.0170.0347.00002
316A.187.128.030.0129.0492.0335.0575.00009
14A.250.190.030.0284.0655.0497.0804.00020
D.250.200.025.0314.0655.0524.0680.00022
516A.312.248.032.0483.0817.0649.109.00034
38A.375.311.032.076.0982.0814.134.00053
D.375.315.030.078.0982.0821.126.00054
12A.500.436.032.149.131.114.182.00103
D.500.430.035.145.131.113.198.00101
58A.625.555.035.242.164.145.251.00168
D.625.545.040.233.164.143.285.00162
34A.750.680.035.363.196.178.305.00252
D.750.666.042.348.196.174.362.00242
78A.875.785.045.484.229.206.455.00336
D.875.785.045.484.229.206.455.00336
118A1.1251.025.050.825.294.268.655.00573
D1.1251.025.050.825.294.268.655.00573
138A1.3751.265.0551.26.360.331.884.00875
D1.3751.265.0551.26.360.331.884.00875
158A1.6251.505.0601.78.425.3941.14.0124
D1.6251.505.0601.78.425.3941.14.0124
218D2.1251.985.0703.09.556.5201.75.0215
258D2.6252.465.0804.77.687.6452.48.0331
318D3.1252.945.0906.81.818.7713.33.0473
358D3.6253.425.1009.21.949.8974.29.0640
418D4.1253.905.11012.01.081.025.38.0833
A = Annealed Temper, D = Drawn Temper

Calculated Rated Internal Working Pressures for Copper Tube: Type K

Nominal or standard size, in inchesAnnealedDrawn
S= 6,000 psi 100FS= 5,100 psi 150FS= 4,900 psi 200FS= 4,800 psi 250FS= 4,700 psi 300FS= 4,000 psi 350FS= 3,000 psi 400FS= 10,300 psi 100FS= 10,300 psi 150FS= 10,300 psi 200FS= 10,300 psi 250FS= 10,000 psi 300FS= 9,700 psi 350FS= 9,400 psi 400F
1410749138778608427165371850185018501850179617421688
3811309609239048857535651946194619461946188918331776
128917587287136985944461534153415341534149014451400
587366266015895774913681266126612661266122911931156
348527246966826685684261466146614661466142413811338
16555575355245134373271126112611261126109310611028
114532452434425416354266914914914914888861834
112494420404396387330247850850850850825801776
2435370355348341290217747747747747726704682
212398338325319312265199684684684684664644624
3385328315308302257193662662662662643624604
312366311299293286244183628628628628610592573
4360306294288282240180618618618618600582564
5345293281276270230172592592592592575557540
6346295283277271231173595595595595578560543
8369314301295289246184634634634634615597578
10369314301295289246184634634634634615597578
12370314302296290247185635635635635617598580