JIS seamless pipe

JIS, Japanese Industrial Standards for steel

Japanese Industrial Standards specifies the standards used for industrial activities in Japan. The standardization process is coordinated by Japanese Industrial Standards Committee and published through Japanese Standards Association.

In the Meiji era, private enterprises were responsible for making standards. However, the Japanese government did have standards and specification documents for procurement purposes for certain articles, such as munitions. These were summarized to form an official standard old JES in 1921. During World War II, simplified standards were established to increase matériel output. The Industrial Standardization Law was enacted in 1949, which forms the legal foundations for the present Japanese Industrial Standards.

The Industrial Standardization Law was revised in 2004 and the JIS mark product certification system was changed. Standards are named like “JIS X 0208:1997″, where X denotes area division, followed by four digits (or five digits for some of the standards corresponding ISO standards) and the revision release year.

G – Ferrous Materials and Metallurgy
H – Nonferrous Materials and Metallurgy

MTC IN EN 10204.3
EN 10204:2004 is for metallic products-and this norm tell us things about Types of inspection documents. There are no material standards.
Mostly material is defined with its chemical composition and mechanical properties in a public standars like ISO, EN, JIS, ASTM etc.

JIS G3461
JIS G3461 Standard specifies the carbon steel tubes, hereinafter refered to as the tubes, used for exchanger heat on the inside and outside of the tube, such as water tubes, smoke tubes, superheater tubes, air preheater tubes, etc.

JIS G3445
JIS G3445 standard specifies the carbon steel tubes, hereinafter referred to as the thes, used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.

JIS G3429, JIS G3429 standard specifies the seamless steel tubes
JIS G3429 standard specifies the seamless steel tubes, hereinafter referred to as the tube used for the manufacture of seamless steel gas cylinders specified in JIS B8230 and JIS B8241.

JIS G3454 STPG370, STPG410
JIS G3454 standard specifies the carbon steel pipes, hereinafter referred to as the pipes, used form pressure serive at an approximate maximum temperature of 350 cerus degree.

What is JIS?
Japanese Industrial Standards (JIS) specifies the standards used for industrial activities in Japan. The standardization process is coordinated by Japanese Industrial Standards Committee and published through Japanese Standards Association.

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.

— Tolerance of JIS seamless pipe —

Table 1: Tolerance on Outside Diameter in JIS G3441, G3444, G3445
APPLICATION TOLERANCE ON OUTSIDE DIAMETER (MM)
JIS G3441
JIS G3444
JIS G3445
=50 ±0.5
>50 ±1%
JIS G3441
JIS G3444
JIS G3445
<50 ±0.25
>50 ±0.5%
JIS G3441
JIS G3445
<25 ±0.12
>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%
JIS G3441 <13 ±0.25
>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)
JIS G3441
JIS G3444
JIS G3445
<=4 -0.5,+0.6
>4 -12.5%, +15%
JIS G3441
JIS G3444
JIS G3445
<=3 ±0 .3
>3 ±10%
JIS G3441
JIS G3445
<=2 ±0.15
>2 ±8%
Table 3: Tolerance on Outside Diameter and Wall Thickness in JIS G3454
APPLICATION TOLERANCE ON OUTSIDE DIAMETER TOLERANCE ON WALL THICKNESS
<40A ±0.5mm <=4mm +0.6mm
-0.5%
>50A, <125A ±1%
Hot Rolled
Seamless Pipes
150A ±1.6mm >4mm +15%
-12.5%
>200A ±0.8%
More than 350mm,the
Tolerance is ±0.5%
Cold Drawn
Seamless Pipes
and Electric
Resistant
Welded Pipes
<25A ±0.3mm <=3mm ±0.3mm
>32A ±0.8% >3mm ±10%
But more than 350mm, the
Tolerance is ±0.5%
Table 4: Tolerance on Outside Diameter and Wall Thickness in JIS G3455, G3456, G3458, G3460
APPLICATION TOLERANCE ON OUTSIDE DIAMETER TOLERANCE ON WALL THICKNESS
Hot Rolled
Seamless Pipes
<=50mm ±0.5mm <=4mm ±0.5mm
>50-160mm ±1%
>160-200mm ±1.6mm >4mm ±12.5%
>200mm ±0.8%
More that 350mm, the
Tolerance is ±0.5%
Cold Drawn
Seamless Pipes
and Electric Resistant
Welded Pipes
<=40mm ±0.3mm <=2mm ±0.2mm
>40mm ±0.8% >2mm ±10%
More than 350 mm the
Tolerance is ±0.5%
Table 5: Tolerance on Outside Diameter in JIS G3461, G3462, G3464
O.D. TOLERANCE ON OUTSIDE DIAMETER
HOT ROLLED SEAMLESS PIPES SEAMLESS PIPES THROUGH QUENCH AND NORMALIZED COLD DRAWN SEAMLESS PIPES THRONG, THE HOT TREATMENT EXCEPT QUENCH AND NORMALIZED ELECTRIC WELDED PIPES EXCEPT COLD DRAWN COLD DRAWN ELECTRIC WELDED PIPES
MM
<=25 +0.4
-0.8
±0.25 ±0.10 ±0.15 ±0.10
>25.40 ±0.25 ±0.15 ±0.20 ±0.15
>40-50 ±0.25 ±0.20 ±0.25 ±0.20
>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
-1.2
-0.60,+0.40 -0.60,+0.40 -0.80,+0.40 -0.60,+0.40
>120-160 -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 6: Tolerance on Wall Thickness in JIS G3461, G3462, G3464
WALL
THICKNESS
(MM)
HOT ROLLED SEAMLESS PIPE COLD DRAWN SEAMLESS PIPE ELECTRIC WELDED PIPE
O.D(MM) O.D(MM) O.D(MM)
<=100 >100 <=40 >40 <=40 >40
(%)
<=2 -0,+0.4mm +22
-0
-0,+0.3mm +18
0
>2-2.4 -0,+40 +20
-,0
+18
-0
>2.4-3.8 -0,+35 -0,+35
>3.8-4.6 -0,+23 -0,+33
>4.6 -0,+28 -0,+28
Table 7: Tolerance on the Length in JIS G3461, G3462, G3464
ITEM TOLERANCE AN LENGTH
OD<50mm <7m -0, +7mm
>=7m Every 3m increase in length, the plus tolerance be increased by 3mm with a maximum of 15mm
OD>=50mm <7m -0, +10mm
>=7m Every 3m increase in length, the plus tolerance be increased by 3mm with a maximum of 15mm
OD: Outside Diameter
Table 8: Tolerance on Outside Diameter in JIS G3465
APPLICATION TOLERANCE ON OUTSIDE DIAMETER (MM)
Hot Rolled <=50 ±0.5
>50 ±1%
Cold Drawn <=40 ±0.2
>40 ±0.5%

 

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