Question 1

What are the two core JIS standards for this product?

Accepted Answer

JIS G3192 specifies the hot rolled C channel dimensional sizes and tolerances; JIS G3101 defines SS400 material chemical composition and mechanical properties.

Question 2

What is the difference between JIS hot rolled C channel and cold formed C purlin?

Accepted Answer

JIS hot rolled C channel is thick-wall high-rigidity for main heavy load-bearing structure; cold bent C purlin is thin lightweight only for secondary roof and wall purlin systems, cannot bear primary structural load.

Question 3

Can this JIS C channel be fully welded on construction site?

Accepted Answer

Yes, SS400 grade has excellent weldability, compatible with manual arc welding and CO2 gas shielded welding.

Question 4

Which surface treatment is recommended for coastal JIS specification projects?

Accepted Answer

Hot-dip galvanizing treatment is the optimal choice for anti-salt fog and marine corrosion.

Question 5

Can we order non-standard JIS sizes and arbitrary cutting lengths?

Accepted Answer

Fully customizable, any length from 1m to 12m and non-standard JIS cross-section dimensions can be produced.

Question 6

What is the equivalent grade of JIS SS400 in European and American standards?

Accepted Answer

Roughly equivalent to EN S235JR and ASTM A36 carbon structural steel.

Question 7

Is JIS SS400 C channel suitable for low-temperature cold region construction?

Accepted Answer

SS400 has no mandatory low-temperature impact test requirement, only suggested for normal temperature indoor and general outdoor areas; select low-temperature impact resistant grades for frigid zones

Question 8

Can JIS hot rolled C channel be used as vertical load-bearing columns?

Accepted Answer

Yes, thick-wall JIS C channel can be designed as secondary vertical bearing columns after professional structural calculation.

Question 9

Can JIS C channel be mixed loaded with other JIS section steels in one container?

Accepted Answer

Supported, can be bundled together with JIS U channel, H beam, I beam and equal angle steel.

Question 10

What certification documents can you provide for JIS project customs clearance and inspection?

Accepted Answer

EN10204 3.1 mill test certificate, SGS third-party material test report, JIS standard conformity certificate and ISO9001 quality system certificate.

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