
Thick Wall Seamless Stainless Steel Pipe for Mechanical ASTM A511
TP316 304
Covering seamless stainless tubing foruse in mechanical
applications where corrosion-resistant orhigh temperature strength
is needed.
Covering seamless cold-finished me-chanical tubing and seamless
hot-finis hed mech anical tubing insizes up to 123/4 in.[ 325 mm]
in outside nominal diameter (forround tubing) with wall thicknesses
as required.
Condition:
1.Round seamless stain le ss mechanical tubing is generallysupplied
in the cold-worked and annealed condition (see 5.2through 5.4).
Square, rectangular, or other shapes of tubing aregenerally
supplied annealed prior to final cold shaping. If someother
condition is desired, details shall be included in the order.
2.The thermal treatment for ferritic and martensitic steelsshall be
performed by a method and at a temperature se lectedby the
manufacturer unless otherwise specified by the pur-chaser.
3.Unless otherwise specified. all austenitic tubes shall
befurnished in the annealed condition. The anneal shall consist
ofheating the material to a minimum temperature of 1900 F
Tolerance for seamless stainless tube:
Production Method | Size(mm) | Tolerance | |
Hot Rolling(Extrusion) | OD | ≤140 | ±1.25% |
>140 | ±1.0% | ||
WT | ≤10 | ±12.5% | |
>10 | ±15% | ||
Cold Drawn(Cold Rolled) | OD | 8~30 | ±0.20mm |
>30~50 | ±0.30mm | ||
>50 | ±0.8% | ||
WT | 1.0~3 | +12% -10% | |
>3.0 | ±10% |
Length:
The length or general steel tube:
Hot Rolling(Extrusion) tube: 3~12 m
Cold Drawn(Cold Rolled) tube: 3~8 m
The length for water pipe & boiler steel pipe:
Hot Rolling(Extrusion) tube: 4~12 m
Cold Drawn(Cold Rolled) tube: 4~8 m
Bending tolerance:
WT≤15mm, Bending≤1.5mm/m
WT>15mm, Bending≤2.0mm/m
End shape:
Both ends of the pipe should be cut at right angles, and remove
burrs
Mechanical property:
Heat treatment of longitudinal mechanical properties of steel pipe
shall according to the standard.
Material | Tensile strength MPa ≥ | Yield Strength MPa ≥ | Elongation % ≥ |
0Cr18Ni9 | 520 | 205 | 35 |
1Cr19Ni9 | 520 | 205 | 35 |
0Cr19Ni10 | 480 | 175 | 35 |
1Cr18Ni9Ti | 550 | 205 | 40 |
0Cr18Ni12Mo2Ti | 530 | 205 | 35 |
0Cr26Ni5Mo2 | 590 | 390 | 18 |
1Cr17 | 410 | 245 | 20 |
00Cr27Mo | 410 | 245 | 20 |
1Cr25Ti | 440 | 245 | 17 |
Hardness:
For the tubes which W.T. ≥2 mm, Rockwell hardness tests should be
taken.
Tests of the seamless boiler tubes:
1.Bending Test:
The tubes should take the bending test when OD ≤22mm. The bending
angle is 90 degrees, and the bending radius is 6 times the outer
diameter of the steel tube.
2. Hydraulic test;
Eddy current testing, ultrasonic testing can be used instead of
hydraulic tests. When eddy current testing, GB/T 7735-1995 Gr. A
should be followed; when ultrasonic testing, GB/T 5777-1996 Gr. C8
should be followed.
3. Flattening test
4. Flanging test
5. Expand test
What is your Guarantee?
1.SO9001:2008 and TS16949 certification, SGS, BV, TUV or other
third party inspection is available.
2.High quality with competitive price.
3.Advanced technology, experienced engineer, ISO quality system for
quality assurance and traceability.
Do you have agent or distributor in our country?
1.We are recruiting area agent and distributor all over the world,
welcome to send us your mail or call us for detail discussion.
How is your production capability?
1.2000 tons monthly production capacity, 5000 tons monthly trading
capability
2.Prompt and Timely shipment
How to get the sample?
1.You are requested to pay for sample charges and courier charges
from China to your country; and the free sample is according the
product like size, steel grade and quantity, please consult our
sales for details
2.Sample charges will be refunded when order is placed.
What is your Payment Term?
1.T/T: 30% deposit in advance, the balance 70% paid before shipment
2.30% down payment, the balance 70% paid against L/C at sight
3.Upon negotiation
Who are your customers?
1.Stockists, Distributors,Wholesalors,Agents, Traders, End Users,
etc
How long will you react on our requirement?
1.Your requirement would be treated within 24 hours on weekdays.
Quotations would be sent upon technical details confirmed by
customer!
Any more questions about your doubts, please feel free to send us
your emails or call!
TORICH INTERNATIONAL LIMITED
Who We are ?
-------A professional steel pipes materials inventor, manufacturer
and solution provider
Torich International Limited is a professional manufacturer
and exporter of steel pipes materials. It is an international
marketing and sales company specialized in steel tubes, which holds
the factories of Seamless Steel Tubes with Carbon and Alloy Steel
Grade, Welded Precision Steel Tubes,DOM Steel Tubes, Seamless &
Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.
Our factory was established since 1997, with the name of Haiyan
Sanxin Steel Pipe Co., Ltd. The factories’ technicians are of great
engineering experience in steel pipe industry for more than 20
years, which are in great command of production technology for Cold
Drawing and Cold Rolling. So we have strong technician team and
manufacturing capability.
What products we do?
------- Invent and produce various Precision Steel Pipes
Our steel pipes cover the following ranges:
Seamless Precision Steel Pipes
Bearing Steel Tubes
Welded Precision Steel Pipes, with DOM production
Seamless Heat Exchanger Steel Pipe
Seamless Boiler Steel Pipes
Honed Tubes
Hydraulic Cylinder Steel Tubes
Hydraulic Telescopic Cylinder Tubes
Seamless Structural Steel Pipes
Seamless Mechanical Steel Pipes
Seamless Alloy Steel Tubes & Pipes
Seamless Stainless Steel tubes
Welded Stainless Steel Tubes
Seamless Stainless Steel Tubes & Pipes
Welded Stainless Steel Tubes & Pipes
Seamless Carbon Steel Tubes & Pipes
Nickel Alloy Steel Tubes & Pipes
What TORICH do:
1. Producing Steel Tubes
2. Selling both on Domestic and International Market
3. Precisely Targeting Customers’ Requirement- Sourcing the right
factory for right products for Customers
Products Application:
Oil Cylinders
Air Cylinder,
Automotive Cylinder Liners
Boilers, Pressure Vessels
Shell & Heat Exchangers
Jack Lifting
Telescopic Systems
Pneumatic Cylinders
Agricultural Machineries
Size range is:
O.D. 4-350mm,
W.T. 0.5-30mm,
Length: according to customer’s requirement and agreement
Steel Grade:
Carbon Steel Grade:
ST35.8, ST37.0, ST44, ST52;
E155, E195, E215, E235, E275, E355;
195GH, P235GH, P265GH, P195TR1, P195TR2, P235TR1, P235TR2, P265TR1,
P265TR2;
SAE1010, SAE1020, SAE1026, SAE1035, SAE1045;
Carbon steel tube: SA178, A179, A192, A210, SA213, SA214, etc.
Alloy Steel Grade:
T2, T5, T9, T11, T12, T17, T21, T22, T91,T92, 15Mo3,16Mo3,
13CrMo44;
SAE4130, SAE4140, 40Cr, 40Cr4, 10CrMo910, 12CrMo910, 11CrMo910,
25CrMo4, 35CrMo, 35CrMo4, 42CrMo4, 34CrMo4, 20MnV, 20MnV6,20CrMn;
Carbon steel tube: A179,A192,A210,DIN17175,etc.
Bearing Steel Grades:
GCr15 52100 suj2 suj3 100Cr6 SKF3S SKF3S 20CrNiMo 8620H 4118H;
Nickel Alloy Grade:
N02200/2201, N04400, N06600, N06601, N06625, N06852, N06219,
N06690, N08800/8810/8811, N08825, N08028, N08535, N08904, N08925,
N08926, N010276, N06022, etc.
Austenitic/Super Austenitic Stainless Steel Grade:
304/304L, 316/316L, 314, 321, 347H, 316Ti, 316LMod, 317L/N, 310S,
253MA, 330, 904L, S31254, XM-19, etc.
Ferrite/Martensite Stainless Steel Grade:
TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439,
TP446, etc.
Duplex/Super Duplex Stainless Steel Grade:
S31803, S32304, S31500, S32550, S32750, S32760, etc.
Corporate Culture:
We focus on Quality First, Quality Traceability, and Quality
Stability!
We focus on Customer First, People First, and Quality-Oriented!
Success:
First factory started in 1997, in the name of Torich , now covers
50000 square meters of factory building, with more than
100employees, and over 45 million RBM assets.
In 2008, we started the company of Torich International
Limited for international business and marketing.
Welcome partners from all over the world for long term cooperation!