Japanese Industrial Standards for steel

日本工业标准指定了标准rds used for industrial activities in Japan. The standardization process is coordinated by Japanese Industrial Standards Committee and published through Japanese Standards Association.

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.

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.

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	冷拔年代EAMLESS 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		冷拔年代EAMLESS 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%

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.