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ASTMA312/AISI304/304L seamless stainless steel pipe tube
Jun 13, 2018

TP304.jpg

Top quality 304 Stainless steel seamless round tubes random length produce and supply

Manufacture Standard:

ASTMA213, ASTMA312, ASTM A269, ASTMA511, ASTM A789, ASTM A790,GOST 9941, GOST 9940, DIN17456, DIN17458, EN10216-5, EN17440,JISG3459, JIS3463,GB/T13296, GB/T14976, GB/T14975, GB9948, GB5310, etc

Grades:

304 , 304L, 304H, 304N, 316, 316L 316Ti, 317L, 310S, 321, 321H, 347H, S31803, S32750, 347, 330, 825, 904L,12X18H9, 08X18H10, 03X18H11, 08X18H10T, 20X25H20C2, 08X17H13M2T, 08X18H12E.

1.4301, 1.4306, 1.4401, 1.4404, 1.4435, 1.4541, 1.4571, 1.4563, 1.4462, 1.4845,

SUS304, SUS304L, SUS316, SUS316L, SUS321, SUS310S etc

Size:

A).Out diameter: ANSI 1/8"-24"(6mm-630mm).

B).Wall thickness: ANSI 5S-160S (0.9mm-30mm)

Process methods:cold dawning, cold rolling
Surface &Delivery condition:Solution annealed and pickled, grey white (polished),with plain ends/bevel edges ends
Length:Max25 meters
Packing:in seaworthy wooden cases or in bundles
Min order quantity:0.5-1 ton
Delivery date:TP304,TP310s pipes usually have stock,others Min. 10 days
Certificates:ISO9001:2000 quality system and Mill test Certificate supplied

Quality Assure:

Quality assure:1),Basic guarantee:Raw material guarantee,we use the Tsingshan Brand raw material,the quality is good,adding we use the spectrum direct-reading test,our professional workers &equipments,we could guarantee the tubes is right of the clients' needs.
2),Process control:follow the process chart adding our workers' care

3),Inspection& TestDirect-reading Spectrum Instrument analytic for chemical composition, Yield Strength, Tensile Strength, Elongation, Hardness Test, Flattening Test, Flaring Test, Eddy Current Test, Ultrasonic Test, Hydrostatic Test, Corrosion Test, etc

General Require of ASTMA213/M

standard
Items
ASTM A213/A213M


Steel grade


TP301                  TP304L
TP316                  TP316L
TP317                  TP310L
TP347                  TP310S
TP347H△               TP310H *
TP309H*                TP321H△
Rp0.2(Mpa)≥170 ; ≥205
Rm(Mpa)≥485 ; ≥515
A(%)≥35
Flatten experiment(mm)H=1.09t/(0.09+t/D)
flaring testInside diameter 21-68%
Grain size"*"," △ "ASTM E112/  "△ "7#or above7#"*"6#or above6#

hydrostatic test (Mpa)

DPmax

P=220.6t/D


<25.47

25.4-<38.110

38.1-<50.814

50.8-<76.217

76.2-<12724

≥12731
Crystal
corrosion test
ASTM A262
nondestructive inspectionASTM  E213  E309  E426
Heat treatment (solid solution)required


Out-diameter tolerance(mm)

ODTOLERANCE

<25.4±0.10

25.4-≤38.1±0.15

>38.1-<50.8±0.20

50.8-<63.5±0.25

63.5-<76.2±0.30

76.2-≤101.6±0.38

>101.6-≤190.5±0.38/-0.64

>190.5-≤228.6±0.38/-1.14

Thickness tolerance(mm)

ODTOLERANCE

≤38.1+20%-0

>38.1+22%-0
straightness(mm/m)REASONABLE
HARDNESSHRB<90

Process of stainless steel pipe tube:
stainless steel pipe process chart.jpg


Features of stainless steel tubes:

1)characters such as Safety, health, environmental protection

2)economy applicable, good surface

3)the resistant to corrosion

4)less weight than bars, thickness and out diameter so variously

5)easy cutting, huge deformation

6)tensile strengthen and good be flexible etc.

Package & delivery of stainless steel tubes:

In bundles with plastic and woven pack

Applications & Usage of seamless stainless pipe:

as Line pipe, boiler pipe, mechanical structure, hydraulic prop pipe, gas pipe, geological pipe, chemical pipe
(high pressure chemical fertilizer pipe, oil cracking pipe) and tube for ships, etc
decoration,building,construction,water pipe,petroleum, chemical industry, chemical fiber, smelt, medical machinery,
paper making,Heat preservation and refrigeration, mechanical equipment, food, electricity, water conservancy,
architecture, aerospace, navigation shipbuilding, environmental protection and boiler heat exchanger

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