ASTM A334 Gr1 Gr6 Torich Welded Carbon Steel Tube

Basic Information
Place of Origin: China
Brand Name: Torich
Certification: ISO9001
Minimum Order Quantity: 3Ton per years
Packaging Details: standard export package,suit for kinds of transport
Delivery Time: 30-45Days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 50000 Per Year
Detail Information
Place Of Origin: NingBo,China Application: Application
Type: Seamless / Welded/ Low Temperature Surface Treatment: Other
Shape: Square. Rectangular.Round End Protector: Plastic Pipe Cap
Steel Grade: Gr1 Gr.3 Gr,6 Gr.7 Gr.8 Gr.9 Outer Diameter: 6 - 2500 Mm
High Light:

Gr6 Welded Carbon Steel Tube


ASTM A334 Welded Carbon Steel Tube


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Product Description

ASTM A334 Gr1 Gr6 Welded Carbon Steel Tube



1 This specification covers several grades of minimum-wall-thickness, seamless and welded,

carbon and alloy-steel tubes intended for use at low temperatures. Some product sizes may not be

available under this specification because heavier wall thicknesses have an adverse affect on

low-temperature impact properties.


2 Supplementary Requirement S1 of an optional nature is provided. This shall apply only when

specified by the purchaser. NOTE 1 For tubing smaller than 1/2 in. [12.7 mm] in outside diameter,

the elongation values given for strip specimens in Table 1 shall apply. Mechanical property

requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in outside diameter and with

a wall thickness under 0.015 in. [0.4 mm].


Chemical composition

Grade Mfg. Process Chemical composition(%)
C Si Mn P S Ni Cr Mo Others
Gr1   0.30Max   0.40~1.06 0.05Max 0.60Max       (STBL450)
Gr3   0.19Max 0.18~0.37 0.31~0.64 0.05Max 0.050Max 3018      
Gr6   0.30Max 0.10Max 0.29~1.06 0.048Max 0.058Max        
Gr7   0.19Max 0.13~0.32 0.90Max 0.04Max 0.050Max 2.03~2.57     (STBL690)
Gr8   0.18Max 0.13~0.32 0.90Max 0.045Max 0.045Max 8.40~9.60     (Cu0.75~1.25)
Gr9   0.20Max - 0.40~1.06 0.045Max 0.50Max 1.60~2.24      


Mechanical Properties

Grade Tensile Test MPa or N/mm2


(Similar to JIS)

Possibility Temperature


Min Yield point Tensile Strength
Gr. 1 205 380Min

Impact Test(J)

2V 18

Gr. 3 240 450Min 2V 18  
Gr. 6 240 415Min 2V 18  
Gr. 7 240 450Min 2V 18  
Gr. 8 520 690Min 2V 18  
Gr. 9 315 435Min 2V 18  

ASTM A334 Gr1 Gr6 Torich Welded Carbon Steel Tube 0


Contact Details
Emily Huang

Phone Number : +8618957803066

WhatsApp : +8613736164628