Company Name

TIANJIN PYST STELL TUBE CO.,LTD

Business Type

MANUFACTURE AND EXPORTER

Commodity

seamless API steel pipe grade B

Specification

Standard

ASME/ASTM: A312, A269, A213, DIN 17456 etc.

Material

301,304, 321, TP321,TP316L,317L,Duplex 2205, Duplex 2207,

TP 304, 304H, 304L, 316, 316L, 316Ti, 317, 321, 321H, 347, 347H, 309S, 310S,

 904L, 17-4PH etc.

Length

SPECIFIC OR AT RANDOM as required

Application

Oil, chemical industry, medicine machine, heat exchanger and water conservancy and so on.

Section shape

Round, square, rectangle.

MOQ

 10T

Payment term

TT or L/C at sight.

Delivery time

Within 20~60 days upon the quantity required.

Packing

1.with plastic cap to protect both ends

2.plastic bag wrapped outside the pipe

3.bundles to be covered by polythene & strapped securely .

4.if require ,then pack into wooden box.

ASTM A213/A213M

ASTM A312/A312M

Material

TP304

TP304L

TP304

TP304L

TP316

TP316L

TP316

TP316L

TP317

TP317L

TP317

TP317L

TP347

TP310S

TP347

TP310S

TP309H*

TP310H*

TP317*

TP310H*

TP321H Δ

TP321H Δ

Y.S.

σ_0.2 (Mpa)

≥170;

≥205

≥170;

≥205

T.S.

σ_b (Mpa)

≥485;

≥515

≥485;

≥515

elongation

≥35

≥35

≥35

≥35

flattening test 

H=1.09t/(0.09+t/D)

H=1.09t/(0.09+t/D)

Flange test

21-68%

hydraulic pressure test (Mpa)

D

P max

P=220.6t/D

D

P max

ASTM A530/A530M

D≤270MM P=2Rt/D
R=50%σ0.2

<25.4

7

≤88.9

17

25.4-<38.1

10

38.1-<50.8

14

>88.9

19

50.8-<76.2

17

76.2-<127

24

≥127

31

metallographic analysis

ASTM A262 E

ASTM A262 E

hardness

HRB<90

HRB<90