Jis G3429 Seamless Steel Tube

JIS G3429 seamless steel tubes

JIS G3429 seamless steel tubes are used for the manufacture of seamless steel gas cylinders specified in JIS B 8230 and JIS B 8241.

JIS G3429 manufacture method:
(1) Manufactured in open-hearth furnace or electric furnace(Seamless).

(2) The tubes is manufactured with no heat treatment.

Chemical Composition:

Class C Si Mn P S Ni Cr Mo
STH11 0.50 max 0.10~0.35 1.80 max 0.035max 0.035max - - -
STH12 0.30~0.41 0.10~0.35 1.35~1.70 0.030max 0.030max - - -

STH21

0.25~0.35

0.15~0.35

0.40~0.90

0.030max

0.030max

0.25 max

0.80~1.20

0.15~0.30

STH22

0.33~0.38

0.15~0.35

0.40~0.90

0.030max

0.030max

0.25 max

0.80~1.20

0.15~0.30

STH31 0.35~0.40 0.10~0.50 1.20~1.50 0.030max 0.030max 0.50~1.00 0.30~0.60 0.15~0.25

Tolerances:

Tolerance on outside diameter Tolerance on wall thickness Tolerance on wall thickness disparity Tolerance on length
1% +30% Within 20% of the nominal wall thickness >+30mm

0


Get In Touch24/7 Support

We receive enquiries in English, Español (Spanish), Русский язык (Russian), Français (French) and العربية (Arabic). Our professional team will reply to you within one business day. Please feel free to contact us!

$(document).ready(function () { var o = $('html'); if (o.hasClass('desktop')) { new WOW().init(); $('#nav').TMStickUp(); } });