JIS G3444 Seamless Carbon Steel Tube

JIS – Japanese Industrial Standard

• JIS G3444
  Steel grade: STK 30, STK 41, STK 50, STK 51, STK 55
  Application: Carbon Steel Tubes for General Structural Purpose
  Dimension Range: 21.7-1016.0 mm

  Nominal Size	Outside Diameter mm.	Thickness mm.	Weight (plain end) kg/m.
  mm.
  15	21.70	2.00	0.98
  20	27.20	2.00 2.30	1.24 1.41
  25	34.00	2.30	1.80
  32	42.70	2.30 2.50	2.29 2.48
  40	48.60	2.30 2.50 2.80 3.20	2.63 2.84 3.16 3.58
  50	60.50	2.30 3.20 4.00	3.30 4.52 5.57
  65	76.30	2.80 3.20 4.00	5.08 5.77 7.13
  80	89.10	2.80 3.20	5.96 6.78
  90	101.60	3.20 4.00 5.00	7.76 9.63 11.90
  100	114.30	3.20 3.50 4.50	8.77 9.58 12.20
  125	139.80	3.60 4.00 4.50 6.00	12.10 13.40 15.00 19.80
  150	165.20	4.50 5.00 6.00 7.10	17.80 19.80 23.60 27.70
  175	190.70	4.50 5.30 6.00 7.00 8.20	20.70 24.20 27.30 31.70 36.90
  200	216.30	4.50 5.80 6.00 7.00 8.00 8.20	23.50 30.10 31.10 36.10 41.10 42.10
  250	267.40	6.00 6.60 7.00 8.00 9.00 9.30	38.70 42.40 45.00 51.20 57.30 59.20
  300	318.50	6.00 6.90 8.00 9.00 10.30	46.20 53.00 61.30 68.70 78.30
  350	355.60	6.40 7.90 9.00 9.50 12.00 12.70	55.10 67.70 76.90 81.10 102.00 107.00
  400	406.40	7.90 9.00 9.50 12.00 12.70	77.60 88.20 93.00 117.00 123.00

applications of JIS G3444 Seamless Carbon Steel Tube

Oil, petroleum transportation

Construction / building materials steel pipe

Steel structure

Scaffolding pipe
Fence post steel pipe
Fire protection steel pipe
Greenhouse steel pipe
Low pressure liquid, water, gas, oil, line pipe
Irrigation pipe
Handrail pipe