JIS Seamless Pipe

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JIS Seamless Pipe 

JIS seamless pipe is steel pipe that has been created by JIS and meets certain performance 

requirements. Manufacturers follow Japan Industrial Standards voluntarily. 

Japanese Industrial Standards (JIS) developed by the organization apply to a wide variety of 

industrial services and technologies such as automobiles, metallurgy, ships and medical 

equipment. 

JIS G3429 Seamless steel tubes for high pressure gas cylinder. 

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Seamless steel pipe is also called CDS pipes (Cold drawn seamless pipe). It’s is used widely in machine parts, shafts, 

bearings, cylinders having strength of 75000 PSD tensile. It is a solid carbon steel rod which is pushed on to the 

mandrel to form the shape of tube. It is available in different sizes. The method for making cold-drawn seamless 

pipes involves taking a round “billet” or bar of steel and boring it in the center, turning it, cutting it, heating it to 

make it more pliable, then “drawing” it (extruding or pulling it) to make it a longer and thinner tube. 

View: Some benefits of Seamless Steel Pipe 

The Benefits of Seamless Steel Pipe be used in Technology and Natural Gas 

Japanese Industrial Standards (JIS) according to alloy, stainless steel or carbon steel. It tests steel’s properties, 

hardness, resistance to corrosion, pitting, heat treating processes and others. 

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Page:1 of JIS-Seamless-Pipe.docx



The results are listed in a main JIS steel grade for steel pipe as below. 

Standard No Steel Grade Standard Name Dimension Range 

JIS G3429 

STH38, STH55, STH67 

Seamless Steel Tubes in High 

Pressure Gas Cylinder 


STO-G, STO-H, STO-J, 

STO-N, STO-C, STO-D, 

STO-E 

Seamless Steel Oil Well, 

Casing, Tubing and Drill Pipe 

SCr 420TK, SCM415TK, 


SCM418TK, SCM420TK, 

SCM430TK, SCM435TK, 

Alloy Steel Tubes for General 

Structural Purpose 

SCM440TK 


STK 30, STK 41, STK 50, STK 

51, STK 55 

Carbon Steel Tubes for 

General Structural Purpose 

21.7-1016.0 mm 

STKM11A,STKM12A, 

STKM12B, STKM12C, 

STKM13A, STKM13B, 

STKM13C, STKMI4A, 


STKM14B, STKM14C, 

STKM15A, STKM18C, 


Carbon Steel Tubes for 

Machine Structural Purposes 


STKM18A, STKM18B, 

STKM18C, STKM19A, 

STKM19C, STKM20A 

JIS G3454 STPG 38, STPG 42 

Carbon Steel Pipes for 

Pressure Service 

10.5-660.4 mm 

JIS G3455 STS 38, STS 42, STS 49 

Carbon Steel Pipes for High 

Pressure Service 

10.5-660.4 mm 

JIS G3456 STPT 38, STPT 42, STPT 49 

Carbon Steel Pipes for High 

Temperature Service 

10.5-660.4 mm 





Standard No Steel Grade Standard Name Dimension Range 

JIS G3460 STPL 39, STPL 46, STPL 70 

Steel Pipes for Low 

Temperature Service 

10.5-660.4mm 

JIS G3461 STB 35, STB 42, STB 52 

Carbon Steel Boiler and Heat 

Exchanger Tubes 

15.9-139.8 mm 


STBAl2, STBAM, STBA20, 

STBA22, STBA23, STBA24, 

STBA25, STEA26 

Alloy Steel Boiler and Heat 

Exchanger Tubes 

15.9-139.8mm 

JIS G3464 STBL 39, STBL46, STBL 70 

Steel Heat Exchanger Tubes 

for Low Temperature Service 

15.9-50.8mm 

For Casing: 


STM-055, STM-C65, 

STM-R60, STM-1170, 

STM-1180, STM-R85 

Seamless Steel Tubes for 

Drilling 

43-142mm 

For Hollow Pipes: 

34-180mm 

For 

Drilling:33.5-50mm 

STF 42, STFAl2, STFA22, 


STFA23, 5TFA24, STFA23, 

Steel Tubes for Fired Heater 

60.5-267.4mm 

STFA26 

Measurement size & Testing 

We have the professional engineers, measurement the size of steel pipes. 





JIS seamless pipe testing covers many specifications, including alloy, size, toughness 

and composition. Those using steel products purchase the product that fulfills the 

requirements they need for what they are building. 

And then calculate a steel pipe and tube theoretic weight. 

Tolerance of JIS seamless pipe 

Table 1: Tolerance on Outside Diameter in JIS G3441, G3444, G3445 

APPLICATION 

TOLERANCE ON OUTSIDE DIAMETER (MM) 

=50 ±0.5 




>50 ±1% 

50 ±0.5% 

25-40 ±0.15 

>40-50 ±0.18 



>5:.60 ±0.20 

>60-70 ±0.23 

>70-80 ±0.25 

>80-90 ±0.30 

>90-100 ±0.40 

>100 ±0.5% 

13-25 ±0.40 

>25-40 ±0.60 


>40-65 ±0.80 

>65-90 ±1.00 

>90-140 ±1.20 

>140 By agreement 





Table 2: Tolerance on Wall Thickness in JIS G3441, G3444, G3445 

APPLICATION 

TOLERANCE ON WALL THICKNESS (MM) 

4 -12.5%, +15% 

3 ±10% 

JIS G3441 2 ±8% 

Table 3: Tolerance on Outside Diameter and Wall Thickness in JIS G3454 

APPLICATION TOLERANCE ON O.D. TOLERANCE ON W.T. 

4mm 

+15% 

-12.5% 

More than 350mm,the Tolerance 

is ±0.5% 

= 350mm, the Tolerance is 

±0.5% 

>3mm ±10% 

JIS G3454 application for Carbon Steel Pipes for Pressure Service 





Table 4: Tolerance on Outside Diameter and Wall Thickness in JIS G3455, G3456, G3458, G3460 

APPLICATION TOLERANCE ON O.D. TOLERANCE ON W.T. 

160-200mm 

±1.6mm 

>200mm ±0.8% 

>4mm ±12.5% 

More that 350mm, the Tolerance 

is ±0.5% 

2mm ±10% 

Table 5: Tolerance on Wall Thickness in JIS G3461, G3462, G3464 

HR seamless 

pipe 

CDS pipe 

ERW pipe 

W.T.(mm) 

O.D(MM) O.D(MM) O.D(MM) 

100 40 40 

2-2.4 -0,+40 – 

>2.4-3.8 -0,+35 -0,+35 

>3.8-4.6 -0,+23 -0,+33 

+20 

-0 

+22 

-0 

+18 

-0 

+18 

-0 

>4.6 -0,+28 -0,+28 





Table 6: Tolerance on Outside Diameter in JIS G3461, G3462, G3464 

TOLERANCE ON OUTSIDE DIAMETER (mm) 

O.D. 

SEAMLESS PIPES 

CDS PIPES THRONG, THE 

ERW PIPES 

COLD DRAWN 

H.R. pipe 

THROUGH QUENCH 

HOT TREATMENT EXCEPT 

EXCEPT COLD 

ELECTRIC 

AND NORMALIZED 

QUENCH AND NORMALIZED 

DRAWN 

WELDED PIPES 

25.40 ±0.25 ±0.15 ±0.20 ±0.15 

>40-50 

+0.4/ 

±0.25 ±0.20 ±0.25 ±0.20 

-0.8 

>50.60 ±0.25 ±0.25 ±0.30 ±0.25 

>60-80 ±0.30 ±0.30 ±0.40 ±0.30 

>80.100 ±0.40 ±0.40 -0.60,+0.40 ±0.40 

>100-120 

+0.4/ 

-0.60,+0.40 -0.60,+0.40 -0.80,+0.40 -0.60,+0.40 

>120-160 

-1.2 

-0.80,+0.40 -0.80,+0.40 -1.00,+0.40 -0.80,+0.40 

>160-200 -1.8,+0.4 -1.20,+0.40 -1.20,+0.40 -1.20,+0.40 -1.20,+0.40 

>200 -2.4,+0.4 -1.60,+0.40 -1.60,+0.40 -1.60,+0.40 -1.60,+0.40 

Table 7: Tolerance on the Length in JIS G3461, G3462, G3464 

ITEM 

TOLERANCE AN LENGTH 

=7m 

Every 3m increase in length, the plus tolerance be 

increased by 3mm with a maximum of 15mm 

Note: W.T. = wall thickness 

O.D. = outside diameter 

H.R. = Hot rolled seamless CDS= cold draw seamless ERW=Electric Welded 





Table 8: Tolerance on Outside Diameter in JIS G3465 

APPLICATION 

TOLERANCE ON OUTSIDE DIAMETER (MM) 

Hot Rolled 

50 ±1% 

Cold Drawn 

40 ±0.5% 

Packing: 

• Packed in wooden crates, wrapped in plastic, and suitably protected for sea-worthly delivery or as requested. 

• Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested. 

• How to packing the seamless pipes? 

Delivery: 

• Pipes are supplied in hexagonal bundles or round bundles tied with steel strip. 

• Weight of bundle – up to 5000 kg upon request of customer. 

• Each bundle is furnished with three tags. 

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contact us now, for more detailed information. 

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JIS Seamless Pipe

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