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GOST8645-68 rectangular seamless cold-deformed steel pipes

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Payment Type:

T/T

Incoterm:

FOB,CFR,CIF,FCA

Min. Order:

1 Ton

Transportation:

Ocean

Port:

Shanghai,Ningbo

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Product Description

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

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Overview

Product Attributes

Model No.: GOST8645-68 rectangle pipes

Brand: Huijie

Usage: Special Purpose

Type: Seamless

Technique: Cold Drawn

Material: Steel 35,Steel 20,Steel 45,Steel 10

Surface Treatment: Other

Section Shape: Rectangular

WT Size: 1-15mm

Delivery Condition: +C, +LC, +SR, +A, +N

OD Size: 6-168mm

Surface: Bright, Without Oxide Scale,black

Application: Mechanical Tubing,construction Pipes

Standard: GOST8645-68 GOST 8639

Products Process: Welded Steel Pipes,seamless Pipes

Supply Ability & Additional Information

Packaging: Bundles Package, Wooden Box

Productivity: 3000 tons/month

Transportation: Ocean

Place of Origin: Zhejiang, China

Supply Ability: 3000 tons/month

Certificate: ISO9001-2008, TS16949

HS Code: 73043190

Port: Shanghai,Ningbo

Payment Type: T/T

Incoterm: FOB,CFR,CIF,FCA

Packaging & Delivery

Selling Units:: Ton

Package Type:: Bundles Package, Wooden Box

GOST 8645-68 (rectangular, seamless cold-deformed pipes).

Materials:Steel 35,Steel45,Steel10,Steel 20,etc

Sizes of square pipes have to confirm the values indicated in the table below:

Size A, mm	Size B, mm	Wall thickness s, mm	Section square, cm2	Weight of1 mpipe, kg,	Inertia moment, cm4=		Resistance moment, cm3=
Size A, mm	Size B, mm	Wall thickness s, mm	Section square, cm2	Weight of1 mpipe, kg,	Ix	Iy	Wx	Wy
90	60	5	13.57	10.65	75.04	142.8	25.01	31.75
120	80	8	28.34	22.25	268.4	514.5	67.11	85.76

Steel density 7/85 g/cm3

Mechanical composition
Steel grade	Tensile strength, N/mm2 (min)	Yield strength, N/mm2 (min)	Elongation, % (min)	Hardness HB (≤)
10	333	206	26	137
20	412	245	23	156
15Cr5Mo	392	216	22	170
12Cr8	392	216	22	170
10Mn2	412	245	21	197

Pipe static characteristic is calculated for R=1,5

Pipes length & limit deviations should correspond to GOST 8639.

Quality Control:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing or Cold Rolling, On line inspection
5. Heat Treatment:+SR, +A, +N
6. Straightening/Cutting to specified length/Finished Measuring Inspection
7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.

100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.