Special Design for Steel Pipe - Seamless steel tubes for coal mining- GB/T 17396-2009 – Sanonpipe
Special Design for Steel Pipe - Seamless steel tubes for coal mining- GB/T 17396-2009 – Sanonpipe Detail:
Overview
Application
Seamless steel pipe for coal mine is mainly used to manufacture seamless pipe for hydraulic prop in coal mine.
Main Grade
Grade of high-quality carbon structural steel: 20#、35#
Chemical Component
Grade | Chemical Component/% | |||||||||||
C | Si | Mn | Nb | RE | Cr | Ni | Cu | Mo | p | S | ||
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. |
Mechanical Property
Mechanical Property | |||||||||
Grade | Tensile strength Rm/MPa |
Yield MPa |
Elong after fracture A/% |
Reduction of area Z/% |
Shork absorption energy (KV2)/J | ||||
Steel tube wall thickness/mm | |||||||||
<16 | >16 〜30 | >30 | |||||||
no more less | |||||||||
20 | 410 | 245 | 235 | 225 | 20 | — | |||
35 | 510 | 305 | 295 | 285 | 17 | — | — | ||
45 | 590 | 335 | 325 | 315 | 14 | — | — | ||
27SiMn | 980 | 835 | 12 | 40 | 39 | ||||
30MnNbRE | 850 | 720 | 13 | 45 | 48 | ||||
Test Requirement
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
Supply Ability: 2000 Tons Per Month Per Grade of Seamless steel tubes for coal mining.
Packaging
In Bundles And In Strong Wooden Box
Delivery
7-14 days if in stock, 30-45 days to produce
Payment
30% depsoit, 70% L/C or B/L copy or 100% L/C at sight
Product Detail
mechanical/Chemical&Fertilizer Pipes
GB/T8162-2008
ASTM_A519-2006
BS EN 10210-1-2006
ASTM A53A53M-2012
GB9948-2006
GB6479-2013
GB/T 17396-2009
Product detail pictures:
Related Product Guide:
Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" and the theory of "quality the basic, belief the very first and management the advanced" for Special Design for Steel Pipe - Seamless steel tubes for coal mining- GB/T 17396-2009 – Sanonpipe , The product will supply to all over the world, such as: India , Detroit , Liverpool , Looking forward, we will keep pace with the times, continuing to create new products. With our strong research team, advanced production facilities, scientific management and top services, we will supply high quality products to our customers worldwide. We sincerely invite you to be our business partners for mutual benefits.
By Giselle from Thailand - 2018.02.12 14:52
In China, we have many partners, this company is the most satisfying to us, reliable quality and good credit, it is worth appreciation.
By Julia from Johannesburg - 2017.11.12 12:31
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