GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial

Product Details
Customization: Available
Type: Stainless Steel Pipes
Standard: ASTM, AISI, JIS, DIN, EN
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  • GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial
  • GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial
  • GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial
  • GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial
  • GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial
  • GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial
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  • Overview
  • Product Description
  • Product line
  • Technological process
  • Application
  • Inspection and Testing
  • Packaging & Shipping
  • Company Profile
  • Our Advantages
Overview

Basic Info.

Model NO.
GOST9940-81
Grade
300 Series
Certification
ISO, RoHS, IBR, AISI, ASTM, EN, DIN, JIS
Shape
Round
Technique
Hot Rolled
Surface Treatment
Polished
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automob
Wall Thinkess
6-630mm
Steel Grade
AISI 410
Material
AISI 420
Inspection
Chemical Composition and Mechanical Properties
Transport Package
Wood Crated
Specification
OD 57-325mm
Trademark
EZS
Origin
China
HS Code
730721
Production Capacity
200000 Tons Per Year

Product Description

Product Description

GOST9940-81 Seamless Ferritic/martensitic  Hot-Deformed Stainless Steel Pipes for heat Exchangers, in Industrial 

OUTDIAMETER MM WALL THICKNESS MM  
76 4.5-10  
83-89 4-12  
95 5-12  
102/108 5-12  
114 5-12  
121/127 5-26  
133/140 8-26  
146/152/159 7-25  
168 8-28  
180 9-28  
194 10-28  
219 11-25  
245 11-25  
273 11-20  
325 11-20
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
GOST 9941-81 Standard Tolerance For Stainless Steel Seamless Pipe
Outside Diameter Tolerance Wall Thickness  mm Tolerance
mm Normal High Higher Normal High Higher
5≤OD≤10 ±0.3mm ±0.2mm ±0.15mm 0.2 ±0.05mm ±0.03mm -
10<OD≤30 ±0.4mm ±0.3mm ±0.2mm 0.3≤WT≤0.4 ±0.07mm ±0.05mm -
0.5≤WT≤0.6 ±0.10mm ±0.07mm -
30<OD≤95 ±1.2% ±1.0% ±0.8% 0.7≤WT≤1 ±0.15mm ±0.10mm -
1<WT≤3 +12.5/-15% ±12.5% +12.5%/-10%
OD>95 ±1.0% ±1.0% ±0.8% 3<WT≤7 ±12.5% +12.5/-10% ±10%
WT>7 -125 ±10% -

GOST 9940-81 Standard Tolerance For Stainless Steel Seamless Pipe
Outside Diameter Tolerance Wall Thickness  mm Tolerance
Normal High Normal High
±1.5% ±1.0% 5≤WT≤8 +20%/-15% +12.5%/-15%
8.5≤WT≤20 ±15% +12.5%/-15%
21≤WT≤26 +12.5%/-15% ±12.5mm
Product line

GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial

Technological process

 

GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial
Application

GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial

Inspection and Testing
 

GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial

Packaging & Shipping

 

GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial
Company Profile
EZ Steel Industrial Co., Ltd is a leading manufacturer of high-performance industrial metal pipelines, specializing in alloy steel, carbon steel, stainless steel, and copper-nickel-based alloy products. With strategically located facilities in Cangzhou, Yangzhou, and Lishui, we deliver globally trusted piping solutions that combine cutting-edge technology, rigorous quality control, and unmatched expertise.
GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial
GOST9940-81 Seamless Ferritic/Martensitic Hot-Deformed Stainless Steel Pipes for Heat Exchangers, in Industrial
We pride ourselves on fostering a team of over 500 skilled professionals, including metallurgical engineers, welding specialists, and quality assurance experts. Continuous investment in employee development ensures our workforce stays ahead of industry trends through regular certifications (e.g., ASME, AWS), cross-functional training, and participation in global technical exchanges. Our management philosophy attracts top-tier talent, combining decades of hands-on experience with youthful innovation to drive sustainable growth.
Our Advantages
Full bank supported company with a perfect line of Credit "AAAAA"
The mill certification such as API monogram , ISO ect....
Prices competitively level
Financial supports, various of payment term could be acceptable such as L/C, T/T, OA, DP
Logistical and shipping chains, we have signed the yearly agreement with the main NVOCC in China can make helps the saves from shipping
FAQ
Q:  How soon you can deliver the goods after placing the order?
A:  For stock:  within 5-7 days;
    For customized product:  around 30 days;
Q: How is the quality control?
A: ISO 9001:2015 quality assurance
   Material Test Certificate as per EN10204 3.1 or 3.2 as per customer's request.
Q: Can I take a factory-visit?
A:  Surely. All customers are welcome.
Q: Can I have a trial order?
A: Of course, it is an honor for us to have the opportunity.
Q: How to contact ?
by call: +86 19896269635
 

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