Factory wholesale Alloy Seamless Pipe - Seamless steel tubes for coal mining- GB/T 17396-2009 – Gold Sanon
Factory wholesale Alloy Seamless Pipe - Seamless steel tubes for coal mining- GB/T 17396-2009 – Gold Sanon Detail:
Seamless steel pipe for coal mine is mainly used to manufacture seamless pipe for hydraulic prop in coal mine.
Grade of high-quality carbon structural steel: 20#、35#
|20||0. 17 一0. 23||0.17 一0. 37||0. 35一0.65||一||一||<0. 25||<0. 25||<0. 20||一||<0. 035||<0. 035|
|35||0. 32一0. 39||0.17—0. 37||0. 50一0.8||—||一||<0. 25||<0.25||<0. 20||一||<0. 035||<0. 035|
|45||0. 42一0. 50||0.17 一0. 37||0.50 一0.8||—||—||<0. 25||WO. 25||WO. 20||一||<0.035||<0.035|
|27SiMn||0. 24一0. 32||1.10 一1.4||1.10 一1.4||一||—||W0. 30||<0.30||<0. 20||<0.15||<0.035||<0. 035|
|30MnNbREa||0.27 一0. 36||0. 20一0. 60||1.20 一1. 60||0.020一0. 050||0. 02一0. 04||<0. 30||<0. 30||<0. 20||<0.15||<0. 035||<0. 035|
|a The content of re is calculated as 0.02% ~ 0.04% added to the molten steel.|
|Elong after fracture
|Reduction of area
|Shork absorption energy （KV2）/J|
|Steel tube wall thickness/mm|
|no more less|
In addition to ensuring the chemical composition and mechanical properties, the steel pipe directly rolled with ingot shall be subject to low power inspection.
Supply Ability: 2000 Tons Per Month Per Grade of Seamless steel tubes for coal mining.
In Bundles And In Strong Wooden Box
7-14 days if in stock, 30-45 days to produce
30% depsoit, 70% L/C or B/L copy or 100% L/C at sight
Product detail pictures:
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