310 Stainless Steel Bar Manufacturer | Trusted Chinese Stainless Steel Bar Factory Direct Supplier

Trusted Chinese Stainless Steel Bar Factory Direct Supplier

310 stainless steel bar is a high-temperature austenitic stainless steel renowned for its outstanding resistance to oxidation and scaling at temperatures up to 2000°F (1093°C). It is ideal for heat-intensive environments, such as furnace components, heat exchangers, incinerators, and cryogenic structures. The alloy maintains its strength and toughness even at sub-zero temperatures, making it a preferred material in critical industries like power generation, metallurgy, and petrochemical processing.

As a factory-direct supplier, we offer OEM and ODM services, competitive pricing, and quick lead times for global clients. Our 310 stainless bars are produced under strict quality control, supported by full certifications and technical documentation.

Parameters

Item	Details
Product Name	Stainless Steel Bar, Stainless Bar, SS Bar
Standard	GB, AISI, ASTM,ASME,DIN, EN, JIS
Available Grades	200 Series: 201, 202300 Series: TP304, 304L, 304H, 316, 316L, 316H, 316Ti, 317, 317L, 310S, 310H, 321, 321H, 347, 347HSpecial Alloys: 904L, S31254 (254SMO)400 Series: 409, 410S, 416, 420, 430, 439, 440, 444, 446Duplex and Others: 2205, 2507, S31803, S32205, S32750, S32760, 253MA
Process	Hot Rolled, Cold Rolled
Sizes	Diameter: 0.1-500mm or customized, Length: 1-12m or customized (according to customer’s request)
Surface Treatment	NO.1, 2B, NO.4, BA, HL, Mirror
Inspection	SGS, TUV, BV, ABS, LR etc.
Application	Oil & Gas, Petroleum, Vessels, Ship Building, Water Treatment and Environmental Protection etc.

Finish	Description	Typical Thickness (mm)	Available Widths (mm)
2B	Smooth, reflective grey sheen. Most widely used.	0.55	914, 1219
BA	Bright annealed mirror-like finish.	0.70	914, 1219
DP	Brushed, non-reflective, easy to clean.	0.90	750, 914, 1219
HR	Scaled, hot-rolled finish.	1.20	750–1500
No.1	Pickled, white surface after hot-rolling.	1.50	914, 1219, 1500
HL	Continuous linear polish finish.	1.60	914, 1219, 1500
No.4	Polished with 150–180 grit.	2.00	914, 1219, 1500
No.8	Mirror finish, highly reflective.	2.50	914, 1219, 1500

Possible styles

We primarily supply 310 stainless steel in round bar form, which is optimal for most high-temperature structural applications. The bars are available in hot rolled, cold drawn, or forged conditions. Surface finishes include black, bright, pickled, or polished, depending on the customer’s specifications. While round bars are standard, limited production of square or hexagonal shapes can be arranged for special engineering needs.