TP304L Stainless Steel Seamless Pipe A312

DONGSHANG Stainless offer TP304L stainless steel seamless pipe conforming to ASTM A312 specification, used for high temperature and general service situation, both welded and seamless stainless steel pipes.

304L is low carbon 304 Austenitic stainless steel, carbon content not exceeding 0.035%, excellent corrosion resistance suited to a wide range of applications, in Europe, it is 1.4307.

TP304L & 1.4307 Chemical Composition

C Mn P S Si Ni Cr N
TP304L 0.035 2.00 0.045 0.030 1.0 8-13 18-20
1.4307 0.030 0.80 0.040 0.015 1.0 8-10 17.5-19.5 0.11

TP304L 1.4307 Mechanical properties

Tensile strength(Mpa) min Yield strength(Mpa) min Elongation(%) Hardness (HRB) max
TP304L 485 170 35 90
1.4307 480-680 180 35 90
A312 tp304L stainless steel seamless pipe316L stainless steel welded pipe
Seamless stainless steel pipe size range from NPS 1/8 inch to 30 inch with Wall thickness from Sch5 to Sch160 depending on ANSI Pipe Schedule B36.19 & B36.10, manufactured starting from billet by cold drawn & cold rolling process, beside TP304L, other grades include 304, 316L, 321/321H, 317/317L, S31803/2205, 904L and duplex steel, more stainless grades, common finish in annealing and pickling, plain ends and beveled ends for chosen to meet specific requirement.

Tolerance of A312 TP304L stainless steel seamless pipe

OD Tolerance WTH(mm)
10.3-48.3 +0.40/-0.80 +/-12.5%t
>48.3-114.3 +0.80/-0.08
>114.3-219.1 +1.60/-0.80
>219.1-457.2 +2.40-0.80
>457.2-660.4 +3.20/-0.80
>660.4-864 +4.00/-0.08
>864-1219.2 +4.80/-0.08